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.env.example

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+# Example Environment Configfile
+POSTGRES_HOSTNAME=postgres_host
+POSTGRES_PORT=postgres_port
+POSTGRES_DB=postgres_database
+POSTGRES_USER=postgres_user
+POSTGRES_PASSWORD=
+ADMIN_PASSWORD=
+MUNICIPALITY_SLUG=lohne

.gitattributes

@@ -0,0 +1,8 @@
+# Specifies Line Feed (LF) Line Endings for Shell Scripts
+*.sh    text eol=lf
+
+# # Specifies Line Feed (LF) Line Endings for SQL Files
+*.sql   text eol=lf
+
+# Letd Git decide for other Files
+*       text=auto

.gitignore

@@ -0,0 +1,7 @@
+.env
+.vscode/
+*.log
+scripts
+
+public/uploads/photos/*
+!public/uploads/photos/.gitkeep

EXTENSION.md

@@ -0,0 +1,183 @@
+# Neue Ideenkarte anlegen
+
+## Übersicht
+
+| Variable | Bedeutung |
+|---|---|
+| `<name>` | Name der Kommune (z.B. `lohne`) |
+| `<ID>` | Eindeutige Port-ID für die Datenbank (z.B. `4` → Port `5434`) |
+| `<branch-name>` | Git-Branch des Frontend-Repos |
+
+---
+
+## Schritt 1 — DNS Record anlegen
+
+Im DNS-Panel einen neuen A-Record anlegen:
+
+| Feld | Wert |
+|---|---|
+| Name | `<name>` |
+| Typ | `A` |
+| Ziel | `195.59.32.237` |
+| TTL | `600s` |
+
+> ⚠️ DNS muss vollständig propagiert sein, bevor Certbot in Schritt 3 ausgeführt wird.
+
+Propagation prüfen:
+```bash
+dig <name>.endex-geodaten.de
+```
+
+---
+
+## Schritt 2 — Nginx `default.conf` anpassen
+
+### 2a — Subdomain in den Port-80-Block eintragen
+
+```nginx
+server_name endex-geodaten.de www.endex-geodaten.de git.endex-geodaten.de lohne.endex-geodaten.de <name>.endex-geodaten.de localhost;
+```
+
+### 2b — Neuen HTTPS-Server-Block hinzufügen
+
+```nginx
+# WEBGIS <NAME>
+server {
+    listen 443 ssl;
+    server_name <name>.endex-geodaten.de;
+
+    ssl_certificate /etc/letsencrypt/live/endex-geodaten.de/fullchain.pem;
+    ssl_certificate_key /etc/letsencrypt/live/endex-geodaten.de/privkey.pem;
+
+    root /var/www/webgis-<name>/public;
+    index index.php index.html;
+
+    location / {
+        try_files $uri $uri/ /index.php?$query_string;
+    }
+
+    location ~ \.php$ {
+        fastcgi_pass webgis-<name>-php:9000;
+        fastcgi_index index.php;
+        include fastcgi_params;
+        fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
+    }
+}
+```
+
+---
+
+## Schritt 3 — SSL-Zertifikat erneuern
+
+Da kein Wildcard-Zertifikat verwendet wird, muss das Cert neu ausgestellt werden:
+
+```bash
+docker compose run --rm certbot certonly --webroot \
+  --webroot-path=/var/www/certbot \
+  -d endex-geodaten.de \
+  -d www.endex-geodaten.de \
+  -d git.endex-geodaten.de \
+  -d lohne.endex-geodaten.de \
+  -d <name>.endex-geodaten.de
+```
+
+Nginx neu laden:
+```bash
+docker compose exec nginx nginx -s reload
+```
+
+---
+
+## Schritt 4 — Docker Container in `docker-compose.yml` anlegen
+
+### PHP/UI Container
+
+```yaml
+  webgis-<name>-php:
+    build: php-docker/
+    container_name: webgis-<name>-php
+    volumes:
+      - ./webgis-<name>:/var/www/webgis-<name>
+    networks:
+      - frontend
+      - webgis-<name>-nw
+```
+
+### Datenbank Container
+
+```yaml
+  webgis-<name>-db:
+    image: postgis/postgis:15-3.3
+    container_name: webgis-<name>-db
+    restart: always
+    ports:
+      - "127.0.0.1:543<ID>:5432" # inside the container always 5432
+    environment:
+      - POSTGRES_USER=${WEBGIS_<NAME>_DB_USER}
+      - POSTGRES_PASSWORD=${WEBGIS_<NAME>_DB_PW}
+      - POSTGRES_DB=${WEBGIS_<NAME>_DB_NAME}
+    volumes:
+      - ./webgis-<name>-data:/var/lib/postgresql/data
+    networks:
+      - webgis-<name>-nw
+```
+
+### Netzwerk ergänzen
+
+Unter dem `networks:` Block am Ende der `docker-compose.yml`:
+
+```yaml
+networks:
+  webgis-<name>-nw:
+    driver: bridge
+```
+
+---
+
+## Schritt 5 — Nginx Volume ergänzen
+
+Beim nginx-Service in `docker-compose.yml` das neue Volume eintragen:
+
+```yaml
+volumes:
+  - ./webgis-<name>:/var/www/webgis-<name>
+```
+
+---
+
+## Schritt 6 — Frontend Source Code klonen
+
+```bash
+git submodule add -b <branch-name> https://git.endex-geodaten.de/lukas.uptmoor/webgis-<name>.git
+```
+
+> Jede Kommune erhält ein eigenes Repo, da Features initial variieren können.
+
+---
+
+## Schritt 7 — Container starten
+
+```bash
+docker compose up -d webgis-<name>-php webgis-<name>-db
+```
+
+Logs prüfen:
+```bash
+docker compose logs -f webgis-<name>-php
+docker compose logs -f webgis-<name>-db
+```
+
+---
+
+## Schritt 8 — Datenbank vorbereiten
+
+SSH-Tunnel öffnen:
+```bash
+ssh -L 5433:localhost:543<ID> root@endex-geodaten.de
+```
+
+Strukturen laden:
+
+```bash
+docker exec -it webgis-<name>-db psql -U $POSTGRES_USER -d $POSTGRES_DB < migrations/001_initial_schema.sql
+```

index.php

@@ -1,56 +0,0 @@
-<?php
-$host = 'webgis-db'; // Matches the service name in docker-compose
-$db   = getenv('POSTGRES_DB');
-$user = getenv('POSTGRES_USER');
-$pass = getenv('POSTGRES_PASSWORD');
-
-try {
-    $dsn = "pgsql:host=$host;port=5432;dbname=$db;";
-    $pdo = new PDO($dsn, $user, $pass, [PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION]);
-
-    if ($pdo) {
-        echo "<h1>✅ Connected to PostGIS!</h1>";
-        
-        // Check PostGIS version
-        $query = $pdo->query("SELECT PostGIS_full_version();");
-        $version = $query->fetch();
-        echo "<p><strong>PostGIS Version:</strong> " . $version[0] . "</p>";
-    }
-} catch (PDOException $e) {
-    echo "<h1>❌ Connection Failed</h1>";
-    echo "<p>" . $e->getMessage() . "</p>";
-}
-?>
-
-
-
-
-
-<?php
-
-// ========================================================================================
-// INIT.PHP — Datenbankverbindung und Session-Initialisierung
-// ========================================================================================
-//
-    // ob_start();
-
-    // session_start();
-
-    // try {
-
-    //     $opt = [
-    //         PDO::ATTR_ERRMODE            => PDO::ERRMODE_EXCEPTION,
-    //         PDO::ATTR_DEFAULT_FETCH_MODE => PDO::FETCH_ASSOC,   
-    //         PDO::ATTR_EMULATE_PREPARES   => false
-    //     ];
-
-
-    //     $dsn = "pgsql:host=localhost;dbname=getenv('POSTGRES_DB');port=5432";
-    //     $pdo = new PDO($dsn, getenv('POSTGRES_USER'), 'getenv('POSTGRES_PASSWORD'), $opt);
-    
-
-    // } catch(PDOException $e) {
-    //     echo "Error: ".$e->getMessage();
-    // }
-?>
-

legacy/delete_data.php

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+<?php
+
+
+	// ToDo's
+	// Whitelists oder Prepared Statements gegen SQL-Injection hinzufügen
+
+
+    include 'init.php';
+
+    $request = htmlspecialchars($_POST['request'], ENT_QUOTES);
+
+    if ($request=='buildings') {
+        $webgis_id = htmlspecialchars($_POST['webgis_id'], ENT_QUOTES);
+
+        try {
+
+            $pdo -> query("DELETE FROM buildings WHERE webgis_id = '$webgis_id'");
+
+        } catch (PDOException $e) {
+            echo "ERROR ".$e->getMessage();
+        }
+    }
+
+    if ($request == 'pipelines') {
+		$webgis_id = htmlspecialchars($_POST['webgis_id'], ENT_QUOTES);
+
+		try {
+
+			$pdo -> query("DELETE from pipelines where webgis_id= '$webgis_id' ");
+
+		} catch(PDOException $e) {
+			echo "ERROR ".$e->getMessage();
+		}
+	}
+
+    if ($request == 'valves') {
+		$webgis_id = htmlspecialchars($_POST['webgis_id'], ENT_QUOTES);
+
+		try {
+
+			$pdo -> query("DELETE from valves where webgis_id= '$webgis_id' ");
+
+		} catch(PDOException $e) {
+			echo "ERROR ".$e->getMessage();
+		}
+	}
+
+?>

legacy/find_data.php

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+<?php
+
+	// ToDo's
+	// Whitelists oder Prepared Statements gegen SQL-Injection hinzufügen
+
+    // PostgreSQL-Serververbindung
+    include 'init.php';
+
+    // HTTP-POST-Methode für Formulardaten
+    $table = htmlspecialchars($_POST['table'], ENT_QUOTES);
+    $field = htmlspecialchars($_POST['field'], ENT_QUOTES);
+    $value = htmlspecialchars($_POST['value'], ENT_QUOTES);
+    
+    try {
+        // Datenbankabfrage
+        $result = $pdo -> query("SELECT *, ST_AsGeoJSON(geom) as geojson FROM $table WHERE $field = '$value'");
+
+        $features = [];
+
+        foreach($result as $row) {
+            // PHP-Objekt erstellen
+            $geometry = json_decode($row['geojson']);
+            
+            // PHP-Objekt bereinigen 
+            unset($row['geom']);
+            unset($row['geojson']);
+            
+            // JSON-Feature hinzufügen
+            $feature = [
+                "type"=>"Feature", 
+                "geometry"=>$geometry, 
+                "properties"=>$row
+            ];
+
+            array_push($features, $feature);
+        };
+
+        // Feature-Collection hinzufügen
+        $featureCollection = [
+            "type"=>"FeatureCollection",
+            "features"=>$features
+        ];
+
+        echo json_encode($featureCollection);
+
+    // Fehlernachricht ausgeben
+    } catch(PDOException $e) {
+        echo "ERROR ".$e->getMessage();
+
+    }
+
+?>

legacy/insert_data.php

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+<?php
+
+	// ToDo's
+	// Whitelists oder Prepared Statements gegen SQL-Injection hinzufügen
+
+    // PostgreSQL-Serververbindung
+    include 'init.php';
+
+    $request = htmlspecialchars($_POST['request'], ENT_QUOTES);
+
+    if ($request == 'valves') {
+        $valve_id = htmlspecialchars($_POST['valve_id'], ENT_QUOTES);
+        $valve_type = htmlspecialchars($_POST['valve_type'], ENT_QUOTES);
+        $valve_dma_id = htmlspecialchars($_POST['valve_dma_id'], ENT_QUOTES);
+        $valve_diameter = htmlspecialchars($_POST['valve_diameter'], ENT_QUOTES);
+        $valve_visibility = htmlspecialchars($_POST['valve_visibility'], ENT_QUOTES);
+        $valve_location = htmlspecialchars($_POST['valve_location'], ENT_QUOTES);
+        $valve_geometry = $_POST['valve_geometry'];
+
+        $result = $pdo -> query("SELECT * FROM valves WHERE valve_id = '$valve_id'");
+
+        if ($result->rowCount()>0) {
+            echo "ERROR: Valve ID already exists. Please type in another ID!";
+        } else {
+        // Datenbankabfrage
+            $result = $pdo -> query("INSERT INTO valves(valve_id, valve_type, valve_dma_id, valve_diameter, valve_location, valve_visibility,  geom) VALUES ('$valve_id', '$valve_type', '$valve_dma_id', '$valve_diameter', '$valve_location', '$valve_visibility',  ST_SetSRID(ST_GeomFromGeoJSON('$valve_geometry'), 4326))");
+        }
+    }
+
+    if ($request == 'pipelines') {
+        $pipeline_id = htmlspecialchars($_POST['pipeline_id'], ENT_QUOTES);
+        $pipeline_category = htmlspecialchars($_POST['pipeline_category'], ENT_QUOTES);
+        $pipeline_dma_id = htmlspecialchars($_POST['pipeline_dma_id'], ENT_QUOTES);
+        $pipeline_diameter = htmlspecialchars($_POST['pipeline_diameter'], ENT_QUOTES);
+        $pipeline_method = htmlspecialchars($_POST['pipeline_method'], ENT_QUOTES);
+        $pipeline_location = htmlspecialchars($_POST['pipeline_location'], ENT_QUOTES);
+        $pipeline_geometry = $_POST['pipeline_geometry'];
+
+        $result = $pdo -> query("SELECT * FROM pipelines WHERE pipeline_id = '$pipeline_id'");
+
+        if ($result->rowCount()>0) {
+            echo "ERROR: Pipeline ID already exists. Please type in another ID!";
+        } else {
+        // Datenbankabfrage
+            $result = $pdo -> query("INSERT INTO pipelines(pipeline_id, pipeline_category, pipeline_dma_id, pipeline_diameter, pipeline_method, pipeline_location,  geom) VALUES ('$pipeline_id', '$pipeline_category', '$pipeline_dma_id', '$pipeline_diameter', '$pipeline_method', '$pipeline_location',  ST_SetSRID(ST_GeomFromGeoJSON('$pipeline_geometry'), 4326))");
+        }
+    }
+
+    if ($request == 'buildings') {
+
+		$account_no = htmlspecialchars($_POST['account_no'], ENT_QUOTES);
+		$building_category = htmlspecialchars($_POST['building_category'], ENT_QUOTES);
+		$building_dma_id = htmlspecialchars($_POST['building_dma_id'], ENT_QUOTES);
+		$building_storey = htmlspecialchars($_POST['building_storey'], ENT_QUOTES);
+		$building_population = htmlspecialchars($_POST['building_population'], ENT_QUOTES);
+		$building_location = htmlspecialchars($_POST['building_location'], ENT_QUOTES);
+		$building_geometry = $_POST['building_geometry'];
+
+		$result = $pdo -> query("SELECT *from buildings where account_no= '$account_no'");
+
+		if ($result->rowCount()>0) {
+			echo "ERROR: Building ID already exists. Please type in another ID!";
+		} else {
+			$sql = $pdo -> query("INSERT INTO buildings(account_no, building_category, building_dma_id, building_storey, building_population, building_location, geom) VALUES ('$account_no', '$building_category', '$building_dma_id', '$building_storey', '$building_population', '$building_location', ST_Force3DZ(ST_SetSRID(ST_GeomFromGeoJSON('$building_geometry'), 4326)))");
+		}
+	}
+        
+
+
+
+
+
+    ?>

legacy/load_data.php

@@ -0,0 +1,63 @@
+<?php
+
+	// ToDo's
+	// Whitelists oder Prepared Statements gegen SQL-Injection hinzufügen
+
+    // PostgreSQL-Serververbindung
+    include 'init.php';
+
+    // HTTP-POST-Methode für Formulardaten
+    $table = htmlspecialchars($_POST['table'], ENT_QUOTES);
+    $dma_id = htmlspecialchars($_POST['dma_id'], ENT_QUOTES);
+
+    if($table == 'valves') {
+        $dma_id_field = "valve_dma_id";
+    }
+
+    if($table == 'buildings') {
+        $dma_id_field = "building_dma_id";
+    }
+
+    if($table == 'pipelines') {
+        $dma_id_field = "pipeline_dma_id";
+    }
+    
+    try {
+        // Datenbankabfrage
+        $result = $pdo -> query("SELECT *, ST_AsGeoJSON(geom) as geojson FROM $table WHERE $dma_id_field = '$dma_id'");
+
+        $features = [];
+
+        foreach($result as $row) {
+            // PHP-Objekt erstellen
+            $geometry = json_decode($row['geojson']);
+            
+            // PHP-Objekt bereinigen 
+            unset($row['geom']);
+            unset($row['geojson']);
+            
+            // JSON-Feature hinzufügen
+            $feature = [
+                "type"=>"Feature", 
+                "geometry"=>$geometry, 
+                "properties"=>$row
+            ];
+
+            array_push($features, $feature);
+        };
+
+        // Feature-Collection hinzufügen
+        $featureCollection = [
+            "type"=>"FeatureCollection",
+            "features"=>$features
+        ];
+
+        echo json_encode($featureCollection);
+
+    // Fehlernachricht ausgeben
+    } catch(PDOException $e) {
+        echo "ERROR ".$e->getMessage();
+
+    }
+
+?>

legacy/test.html

@@ -0,0 +1,97 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>Document</title>
+
+    <!-- jQuery UI -->
+    <link rel="stylesheet" href="source/jquery-ui.min.css">
+    <script src="source/jquery-ui.min.js"></script>
+
+    <!-- Bootstrap Stylesheet & Skript -->
+    <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.4.1/css/bootstrap.min.css">
+    <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.4.1/js/bootstrap.min.js"></script>
+
+    <link rel="stylesheet" href="styles.css">
+
+    <!-- Sidebar Plugin -->
+    <link rel="stylesheet" href="plugins/sidebar/leaflet-sidebar.css">
+    <script src="plugins/sidebar/leaflet-sidebar.js"></script>
+     
+
+    <!-- Button Plugin -->
+    <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/leaflet-easybutton@2/src/easy-button.css">
+    <script src="https://cdn.jsdelivr.net/npm/leaflet-easybutton@2/src/easy-button.js"></script>
+
+    <!-- Font Plugin -->
+    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/7.0.1/css/all.min.css">
+
+    <!-- PolylineMeasure Plugin -->
+    <link rel="stylesheet" href="https://ppete2.github.io/Leaflet.PolylineMeasure/Leaflet.PolylineMeasure.css">
+    <script src="https://ppete2.github.io/Leaflet.PolylineMeasure/Leaflet.PolylineMeasure.js"></script>
+
+    <!-- MousePosition Plugin -->
+    <link rel="stylesheet" href="plugins/mouseposition/L.Control.MousePosition.css">
+    <script src="plugins/mouseposition/L.Control.MousePosition.js"></script>
+
+    <!-- Geoman Plugin -->
+    <link rel="stylesheet" href="https://unpkg.com/@geoman-io/leaflet-geoman-free@latest/dist/leaflet-geoman.css">
+    <script src="https://unpkg.com/@geoman-io/leaflet-geoman-free@latest/dist/leaflet-geoman.js"></script>
+
+    <!-- Minimap Plugin -->
+    <link rel="stylesheet" href="plugins/minimap/Control.MiniMap.min.css">
+    <script src="plugins/minimap/Control.MiniMap.min.js"></script>
+
+    <!-- ajax Plugin -->
+    <script src="plugins/ajax/leaflet.ajax.js"></script>
+</head>
+
+<body>
+
+    <div class="popup-container">
+        
+        <input type="hidden" name="building_database_id" class="updateBuilding" value="something">
+        <input type="hidden" name="account_no_old" class="updateBuilding" value="something">
+
+        
+        <div class="popup-form-group">
+            <label class="control-label popup-label">Building ID</label>
+            <input type="text" class="form-control popup-input text-center updateBuilding" value="something" name="account_no">
+        </div>
+
+        <div class="popup-form-group">
+            <label class="control-label popup-label">Category</label>
+            <input type="text" class="form-control popup-input text-center updateBuilding" value="something" name="building_category">
+        </div>
+
+        <div class="popup-form-group">
+            <label class="control-label popup-label">Storey</label>
+            <input type="number" class="form-control popup-input text-center updateBuilding" value="something" name="building_storey">
+        </div>
+
+        <div class="popup-form-group">
+            <label class="control-label popup-label">Population</label>
+            <input type="number" class="form-control popup-input text-center updateBuilding" value="something" name="building_population">
+        </div>
+
+        <div class="popup-form-group">
+            <label class="control-label popup-label">Location</label>
+            <input type="text" class="form-control popup-input text-center updateBuilding" value="something" name="building_locationn">
+        </div>
+
+        <div class="popup-button-group">
+            <button type="submit" class="btn btn-success popup-button">Update</button>
+            <button type="submit" class="btn btn-danger popup-button">Delete</button>
+
+        </div>
+
+    </div>
+    
+
+
+
+
+</body>
+
+</html>

legacy/update_data.php

@@ -0,0 +1,98 @@
+<?php
+    include 'init.php';
+
+    $request = htmlspecialchars($_POST['request'], ENT_QUOTES);
+
+    if ($request=='buildings') {
+        $webgis_id = htmlspecialchars($_POST['webgis_id'], ENT_QUOTES);
+        $account_no_old = htmlspecialchars($_POST['account_no_old'], ENT_QUOTES);
+        $account_no = htmlspecialchars($_POST['account_no'], ENT_QUOTES);
+        $building_category = htmlspecialchars($_POST['building_category'], ENT_QUOTES);
+        $building_storey = htmlspecialchars($_POST['building_storey'], ENT_QUOTES);
+        $building_population = htmlspecialchars($_POST['building_population'], ENT_QUOTES);
+        $building_location = htmlspecialchars($_POST['building_location'], ENT_QUOTES);
+        $building_dma_id = htmlspecialchars($_POST['building_dma_id'], ENT_QUOTES);
+
+
+        try {
+            
+            if ($account_no_old != $account_no) {
+                $result = $pdo -> query("SELECT * FROM buildings WHERE account_no = '$account_no'");
+
+                if ($result -> rowCount()>0) {
+                    echo "ERROR: Account Number already exists. Pleas type in another Account Number!";
+                } else {
+                    $pdo -> query("UPDATE buildings SET account_no = '$account_no', building_category = '$building_category', building_storey = '$building_storey', building_population = '$building_population', building_location = '$building_location', building_dma_id = '$building_dma_id' WHERE webgis_id = '$webgis_id'");
+                }
+
+            } else { $pdo -> query("UPDATE buildings SET account_no = '$account_no', building_category = '$building_category', building_storey = '$building_storey', building_population = '$building_population', building_location = '$building_location', building_dma_id = '$building_dma_id' WHERE webgis_id = '$webgis_id'");
+            }
+
+        } catch (PDOException $e) {
+            echo "ERROR ".$e->getMessage();
+        }
+    }
+
+
+    if ($request == 'pipelines') {
+		$webgis_id = htmlspecialchars($_POST['webgis_id'], ENT_QUOTES);
+		$pipeline_id_old = htmlspecialchars($_POST['pipeline_id_old'], ENT_QUOTES);
+		$pipeline_id = htmlspecialchars($_POST['pipeline_id'], ENT_QUOTES);
+		$pipeline_dma_id = htmlspecialchars($_POST['pipeline_dma_id'], ENT_QUOTES);
+		$pipeline_diameter = htmlspecialchars($_POST['pipeline_diameter'], ENT_QUOTES);
+		$pipeline_location = htmlspecialchars($_POST['pipeline_location'], ENT_QUOTES);
+		$pipeline_category = htmlspecialchars($_POST['pipeline_category'], ENT_QUOTES);
+		$pipeline_length = htmlspecialchars($_POST['pipeline_length'], ENT_QUOTES);
+
+
+		try {
+
+			if ($pipeline_id_old != $pipeline_id) {
+				$result = $pdo -> query("SELECT *from pipelines where pipeline_id = '$pipeline_id' ");
+
+				if ($result -> rowCount()>0) {
+					echo "ERROR: Pipeline ID already exists. Please choose a new ID";
+				} else {
+					$pdo -> query("UPDATE pipelines set pipeline_id = '$pipeline_id', pipeline_dma_id = '$pipeline_dma_id', pipeline_diameter = '$pipeline_diameter', pipeline_location = '$pipeline_location', pipeline_category='$pipeline_category', pipeline_length='$pipeline_length' where webgis_id = '$webgis_id'");
+				}
+			} else {
+				$pdo -> query("UPDATE pipelines set pipeline_id = '$pipeline_id', pipeline_dma_id = '$pipeline_dma_id', pipeline_diameter = '$pipeline_diameter', pipeline_location = '$pipeline_location', pipeline_category='$pipeline_category', pipeline_length='$pipeline_length' where webgis_id = '$webgis_id'");
+			}
+
+		} catch(PDOException $e) {
+			echo "ERROR ".$e->getMessage();
+		}
+	}
+
+
+    if ($request == 'valves') {
+		$webgis_id = htmlspecialchars($_POST['webgis_id'], ENT_QUOTES);
+		$valve_id_old = htmlspecialchars($_POST['valve_id_old'], ENT_QUOTES);
+		$valve_id = htmlspecialchars($_POST['valve_id'], ENT_QUOTES);
+		$valve_dma_id = htmlspecialchars($_POST['valve_dma_id'], ENT_QUOTES);
+		$valve_type = htmlspecialchars($_POST['valve_type'], ENT_QUOTES);
+		$valve_diameter = htmlspecialchars($_POST['valve_diameter'], ENT_QUOTES);
+		$valve_location = htmlspecialchars($_POST['valve_location'], ENT_QUOTES);
+		$valve_visibility = htmlspecialchars($_POST['valve_visibility'], ENT_QUOTES);
+
+
+		try {
+
+			if ($valve_id_old != $valve_id) {
+				$result = $pdo -> query("SELECT *from valves where valve_id = '$valve_id' ");
+
+				if ($result -> rowCount()>0) {
+					echo "ERROR: Valve ID already exists. Please choose a new ID";
+				} else {
+					$pdo -> query("UPDATE valves set valve_id = '$valve_id', valve_dma_id = '$valve_dma_id', valve_type = '$valve_type', valve_diameter = '$valve_diameter', valve_location = '$valve_location', valve_visibility = '$valve_visibility' where webgis_id = '$webgis_id' ");
+				}
+			} else {
+				$pdo -> query("UPDATE valves set valve_id = '$valve_id', valve_dma_id = '$valve_dma_id', valve_type = '$valve_type', valve_diameter = '$valve_diameter', valve_location = '$valve_location', valve_visibility = '$valve_visibility' where webgis_id = '$webgis_id' ");
+			}
+
+		} catch(PDOException $e) {
+			echo "ERROR ".$e->getMessage();
+		}
+	}
+
+?>

migrations/001_initial_schema.sql

@@ -0,0 +1,169 @@
+-- =====================================================================
+-- WebGIS Citizen Participation Portal — Initial Schema
+-- Migration: 001_initial_schema.sql
+-- Description: Creates Core Tables for a multi-tenant Citizen
+--              Participation Platform with Point/Line/Polygon
+--              Contributions, Voting, and Moderation Workflow.
+-- =====================================================================
+
+
+-- ---------------------------------------------------------------------
+-- Block 1: Checks PostGIS Extension
+-- ---------------------------------------------------------------------
+CREATE EXTENSION IF NOT EXISTS postgis;
+
+
+-- ---------------------------------------------------------------------
+-- Block 2: Creates Table "municipalities"
+-- One Row per Municipalitiy using the Portal (multi-tenant setup).
+-- ---------------------------------------------------------------------
+CREATE TABLE municipalities (
+    municipality_id   SERIAL PRIMARY KEY,
+    name              VARCHAR(100)     NOT NULL UNIQUE,        -- Municipalitiy Name
+    slug              VARCHAR(50)      NOT NULL UNIQUE,        -- URL-safe Identifier, e.g. "lohne"
+    center_lat        DOUBLE PRECISION NOT NULL,               -- Map Center Latitude
+    center_lng        DOUBLE PRECISION NOT NULL,               -- Map Center Longitude
+    default_zoom      SMALLINT         NOT NULL DEFAULT 13,    -- Map Default Zoom Level
+    logo_path         VARCHAR(255),                            -- Relative Path to Municipality Logo
+    primary_color     VARCHAR(7)       DEFAULT '#6a6a6a',    -- HexColor for UI Theme
+    created_at        TIMESTAMPTZ      NOT NULL DEFAULT NOW(),
+    updated_at        TIMESTAMPTZ      NOT NULL DEFAULT NOW()
+);
+
+COMMENT ON TABLE municipalities IS 'Configuration Per Municipality (Tenant) using the Citizen Participation Portal.';
+
+
+-- ---------------------------------------------------------------------
+-- Block 3: Table "contributions"
+-- Aitizen and Administration Contributions as Points, Lines, and
+-- Polygons stored together in one mixed-geometry Column.
+-- ---------------------------------------------------------------------
+CREATE TABLE contributions (
+    contribution_id   SERIAL PRIMARY KEY,
+    municipality_id   INTEGER       NOT NULL REFERENCES municipalities(municipality_id) ON DELETE CASCADE,
+    geom              GEOMETRY(Geometry, 4326) NOT NULL,       -- Mixed Geometry: Point, Line, Polygon, ... (WGS84)
+    geom_type         VARCHAR(20)   NOT NULL,                  -- 'point' | 'line' | 'polygon'
+    category          VARCHAR(50)   NOT NULL,                  -- Contribution Category
+    title             VARCHAR(200)  NOT NULL,
+    description       TEXT,
+    author_name       VARCHAR(100)  NOT NULL,
+    status            VARCHAR(20)   NOT NULL DEFAULT 'pending',
+    likes_count       INTEGER       NOT NULL DEFAULT 0,
+    dislikes_count    INTEGER       NOT NULL DEFAULT 0,
+    created_at        TIMESTAMPTZ   NOT NULL DEFAULT NOW(),
+    updated_at        TIMESTAMPTZ   NOT NULL DEFAULT NOW(),
+
+    CONSTRAINT contributions_geom_type_check
+        CHECK (geom_type IN ('point', 'line', 'polygon')),
+    CONSTRAINT contributions_status_check
+        CHECK (status IN ('pending', 'approved', 'rejected', 'in_progress', 'done'))
+);
+
+COMMENT ON TABLE contributions IS 'Citizen and Administration Contributions with mixed Geometry Types.';
+
+
+-- ---------------------------------------------------------------------
+-- Block 4: Indexes for fast Queries
+-- ---------------------------------------------------------------------
+CREATE INDEX contributions_geom_idx         ON contributions USING GIST (geom);
+CREATE INDEX contributions_municipality_idx ON contributions (municipality_id);
+CREATE INDEX contributions_status_idx       ON contributions (status);
+CREATE INDEX contributions_category_idx     ON contributions (category);
+
+
+-- ---------------------------------------------------------------------
+-- Block 5: Table "votes"
+-- Individual like and dislike Records. UNIQUE Constraint prevents the
+-- same voter from liking or disliking the same contribution multiple times.
+-- ---------------------------------------------------------------------
+CREATE TABLE votes (
+    vote_id           SERIAL PRIMARY KEY,
+    contribution_id   INTEGER       NOT NULL REFERENCES contributions(contribution_id) ON DELETE CASCADE,
+    voter_name        VARCHAR(100)  NOT NULL,                  -- ToDo: Replace with user_id once Authentification exists
+    vote_type         VARCHAR(10)   NOT NULL,
+    created_at        TIMESTAMPTZ   NOT NULL DEFAULT NOW(),
+
+    CONSTRAINT votes_unique_per_voter UNIQUE (contribution_id, voter_name),
+    CONSTRAINT votes_vote_type_check  CHECK (vote_type IN ('like', 'dislike'))
+);
+
+COMMENT ON TABLE votes IS 'Individual Votes to prevent duplicate Likes and Dislikes.';
+
+
+-- ---------------------------------------------------------------------
+-- Block 6: Trigger Functions
+-- ---------------------------------------------------------------------
+
+-- Automatically Refresh updated_at on every UPDATE.
+CREATE OR REPLACE FUNCTION set_updated_at()
+RETURNS TRIGGER AS $$
+BEGIN
+    NEW.updated_at = NOW();
+    RETURN NEW;
+END;
+$$ LANGUAGE plpgsql;
+
+CREATE TRIGGER contributions_updated_at
+    BEFORE UPDATE ON contributions
+    FOR EACH ROW EXECUTE FUNCTION set_updated_at();
+
+CREATE TRIGGER municipalities_updated_at
+    BEFORE UPDATE ON municipalities
+    FOR EACH ROW EXECUTE FUNCTION set_updated_at();
+
+
+-- Keeps likes_count / dislikes_count synchronized with the votes Table.
+CREATE OR REPLACE FUNCTION update_vote_counts()
+RETURNS TRIGGER AS $$
+BEGIN
+    IF TG_OP = 'INSERT' THEN
+        IF NEW.vote_type = 'like' THEN
+            UPDATE contributions SET likes_count = likes_count + 1
+                WHERE contribution_id = NEW.contribution_id;
+        ELSE
+            UPDATE contributions SET dislikes_count = dislikes_count + 1
+                WHERE contribution_id = NEW.contribution_id;
+        END IF;
+    ELSIF TG_OP = 'DELETE' THEN
+        IF OLD.vote_type = 'like' THEN
+            UPDATE contributions SET likes_count = GREATEST(likes_count - 1, 0)
+                WHERE contribution_id = OLD.contribution_id;
+        ELSE
+            UPDATE contributions SET dislikes_count = GREATEST(dislikes_count - 1, 0)
+                WHERE contribution_id = OLD.contribution_id;
+        END IF;
+    END IF;
+    RETURN NULL;
+END;
+$$ LANGUAGE plpgsql;
+
+CREATE TRIGGER votes_count_sync
+    AFTER INSERT OR DELETE ON votes
+    FOR EACH ROW EXECUTE FUNCTION update_vote_counts();
+
+
+-- ---------------------------------------------------------------------
+-- Block 7: Typed Geometry Views for QGIS
+-- QGIS handles mixed-geometry Tables awkwardly, so one View per
+-- Geometry Type is created. Reflects live Data from the Contributions Table.
+-- ---------------------------------------------------------------------
+CREATE VIEW contributions_points AS
+    SELECT * FROM contributions WHERE geom_type = 'point';
+
+CREATE VIEW contributions_lines AS
+    SELECT * FROM contributions WHERE geom_type = 'line';
+
+CREATE VIEW contributions_polygons AS
+    SELECT * FROM contributions WHERE geom_type = 'polygon';
+
+
+-- ---------------------------------------------------------------------
+-- Block 8: Seed Data — Initial Municipality
+-- ---------------------------------------------------------------------
+INSERT INTO municipalities (name, slug, center_lat, center_lng, default_zoom, primary_color)
+VALUES ('Lohne (Oldenburg)', 'lohne', 52.66639, 8.23306, 14, '#00376D');
+
+
+-- =====================================================================
+-- End of migration 001_initial_schema.sql
+-- =====================================================================

migrations/002_add_votes_index.sql

@@ -0,0 +1,48 @@
+-- =====================================================================
+-- WebGIS Citizen Participation Portal
+-- Migration: 002_add_votes_index.sql
+-- Description: Adds missing Index on votes.contribution_id for fast
+--              Vote Lookups per Contribution.
+-- =====================================================================
+
+
+-- ---------------------------------------------------------------------
+-- Block 1: Index for fast Queries
+-- The UNIQUE Constraint on contribution_id and voter_name creates a
+-- composite Index, but Queries filtering only by contribution_id
+-- cannot use it efficiently. This single-column Index covers that Case.
+-- ---------------------------------------------------------------------
+CREATE INDEX votes_contribution_idx ON votes (contribution_id);
+
+
+-- =====================================================================
+-- ToDo's for future Migrations
+-- =====================================================================
+--
+-- 1. Categories Table
+--    Create a "categories" Table with municipality_id, slug, label,
+--    icon (FontAwesome), color, and sort_order. Replace the free-text
+--    "category" Column in Contributions with a Foreign Key Reference.
+--    This prevents Typos and inconsistent Category Names, and allows
+--    each Municipality to define its own Set of Categories.
+--
+-- 2. Soft Delete
+--    Add "deleted_at TIMESTAMPTZ DEFAULT NULL" to Contributions.
+--    Instead of DELETE, set deleted_at = NOW(). Filter all Queries
+--    with "WHERE deleted_at IS NULL". Allows Moderation Audit Trail
+--    and accidental Deletion Recovery.
+--
+-- 3. Audit Log
+--    Create an "audit_log" Table recording who changed what and when.
+--    Columns: audit_id, table_name, record_id, action (insert/update/
+--    delete), changed_by, old_values (JSONB), new_values (JSONB),
+--    created_at. Populate via Triggers on Contributions and Votes.
+--
+-- 4. Geometry Validation
+--    Add CHECK Constraint "ST_IsValid(geom)" on Contributions, or
+--    validate in the API Layer before Insert. Prevents self-crossing
+--    Polygons and other invalid Geometries.
+--
+-- =====================================================================
+-- End of migration 002_add_votes_index.sql
+-- =====================================================================

migrations/003_news_table.sql

@@ -0,0 +1,44 @@
+-- =====================================================================
+-- Migration 004: Creates News Table for Municipality Announcements
+-- =====================================================================
+
+
+-- ---------------------------------------------------------------------
+-- Block 1: Creates Table "news"
+-- ---------------------------------------------------------------------
+CREATE TABLE IF NOT EXISTS news (
+    news_id         SERIAL PRIMARY KEY,
+    municipality_id INTEGER NOT NULL REFERENCES municipalities(municipality_id) ON DELETE CASCADE,
+    title           VARCHAR(255) NOT NULL,
+    content         TEXT NOT NULL,
+    author_name     VARCHAR(100) NOT NULL DEFAULT 'Stadtverwaltung',
+    published_at    TIMESTAMP NOT NULL DEFAULT NOW(),
+    created_at      TIMESTAMP NOT NULL DEFAULT NOW(),
+    updated_at      TIMESTAMP NOT NULL DEFAULT NOW()
+);
+
+
+-- ---------------------------------------------------------------------
+-- Block 2: Trigger Functions
+-- ---------------------------------------------------------------------
+
+-- Automatically Refresh updated_at on every UPDATE.
+CREATE TRIGGER set_news_updated_at
+    BEFORE UPDATE ON news
+    FOR EACH ROW
+    EXECUTE FUNCTION set_updated_at();
+
+
+-- ---------------------------------------------------------------------
+-- Block 3 Indexes for fast Queries
+-- ---------------------------------------------------------------------
+CREATE INDEX idx_news_municipality ON news(municipality_id);
+
+
+-- ---------------------------------------------------------------------
+-- Block 4: Seed Data — Initial News Article
+-- ---------------------------------------------------------------------
+INSERT INTO news (municipality_id, title, content)
+SELECT municipality_id, 'Mitmachkarte gestartet', 
+       'Die Mitmachkarte als Bürgerbeteiligungsportal der Stadt Lohne (Oldenburg) wird nun freigeschaltet. Wir freuen uns auf Ihre Hinweise und Vorschläge!'
+FROM municipalities WHERE slug = 'lohne';

migrations/004_reverse_geocoding.sql

@@ -0,0 +1,8 @@
+-- =====================================================================
+-- Migration 004: Adds Address Column for Reverse Geocoding
+-- =====================================================================
+
+ALTER TABLE contributions
+    ADD COLUMN address VARCHAR(255) DEFAULT NULL;
+
+COMMENT ON COLUMN contributions.address IS 'Reverse geocoded Address, stored automatically on Creation.';

migrations/005_browser_id.sql

@@ -0,0 +1,27 @@
+-- =====================================================================
+-- Migration 005: Adds Browser ID for anonymous User Identification
+-- =====================================================================
+
+-- Adds browser_id Column to Contributions
+ALTER TABLE contributions
+    ADD COLUMN browser_id VARCHAR(36) DEFAULT NULL;
+
+-- Adds browser_id Column to Votes
+-- Replaces voter_name for Identification
+ALTER TABLE votes
+    ADD COLUMN browser_id VARCHAR(36) DEFAULT NULL;
+
+-- Index for fast Vote Lookup by Browser
+CREATE INDEX idx_votes_browser ON votes(browser_id);
+
+
+-- New UNIQUE Constraint: One Vote per Browser per Contribution
+
+-- Drops old Constraint voter_name based
+ALTER TABLE votes
+    DROP CONSTRAINT IF EXISTS votes_unique_per_voter;
+
+-- Creates new Constraint browser_id based
+ALTER TABLE votes
+    ADD CONSTRAINT votes_contribution_browser_unique
+    UNIQUE (contribution_id, browser_id);

migrations/006_comments_and_photos.sql

@@ -0,0 +1,36 @@
+-- =====================================================================
+-- Migration 006: Comments Table and Photo Support
+-- =====================================================================
+
+
+-- ---------------------------------------------------------------------
+-- Block 1: Creates Table "comments"
+-- Stores Comments on Contributions. Comments is linked to
+-- Contributions and identified by browser_id.
+-- ---------------------------------------------------------------------
+CREATE TABLE IF NOT EXISTS comments (
+    comment_id      SERIAL PRIMARY KEY,
+    contribution_id INTEGER NOT NULL REFERENCES contributions(contribution_id) ON DELETE CASCADE,
+    author_name     VARCHAR(100) NOT NULL,
+    browser_id      VARCHAR(36) DEFAULT NULL,
+    content         TEXT NOT NULL,
+    created_at      TIMESTAMP NOT NULL DEFAULT NOW()
+);
+
+
+-- ---------------------------------------------------------------------
+-- Block 2: Indexes for fast Comment Queries
+-- ---------------------------------------------------------------------
+CREATE INDEX idx_comments_contribution ON comments(contribution_id);
+CREATE INDEX idx_comments_browser ON comments(browser_id);
+
+
+-- ---------------------------------------------------------------------
+-- Block 3: Adds Photo Path Column to Contributions
+-- Stores relative Path to uploaded Photo File.
+-- ---------------------------------------------------------------------
+ALTER TABLE contributions
+    ADD COLUMN photo_path VARCHAR(255) DEFAULT NULL;
+    ADD COLUMN comment_count INTEGER NOT NULL DEFAULT 0;
+
+COMMENT ON COLUMN contributions.photo_path IS 'Relative Path to uploaded Photo. NULL = no Photo.';

public/admin.php

@@ -0,0 +1,891 @@
+<?php
+// =====================================================================
+// Moderation Page
+// Lists Contributions for Review. Moderators can approve, reject,
+// edit and delete Contributions. Includes Map Preview and Filtering.
+//
+// ToDo's:
+//   - Comment Moderation Tab 
+//   - News Management Tab
+//   - User Management Tab
+//   - Analytics Tab 
+// =====================================================================
+
+// Reads Environment Configfile
+$envFile = __DIR__ . '/../../.env';
+if (file_exists($envFile)) {
+    $lines = file($envFile, FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES);
+    foreach ($lines as $line) {
+        if (strpos(trim($line), '#') === 0) continue;
+        list($key, $value) = array_map('trim', explode('=', $line, 2));
+        putenv("$key=$value");
+    }
+}
+
+require_once __DIR__ . '/api/db.php';
+require_once __DIR__ . '/api/auth.php';
+
+
+// -----------------------------------------------------------------
+// Routing: Login, Logout, or Main Page
+// -----------------------------------------------------------------
+$page = $_GET['page'] ?? 'main';
+
+// Handles Login
+if ($page === 'login' && $_SERVER['REQUEST_METHOD'] === 'POST') {
+    $password = $_POST['password'] ?? '';
+    if (admin_login($password)) {
+        header('Location: admin.php');
+        exit;
+    } else {
+        $login_error = 'Falsches Passwort.';
+    }
+}
+
+// Handles Logout
+if ($page === 'logout') {
+    admin_logout();
+    header('Location: admin.php?page=login');
+    exit;
+}
+
+// -----------------------------------------------------------------
+// Loads Municipality Configuration for Theming
+// -----------------------------------------------------------------
+$pdo = get_db();
+$stmt = $pdo->prepare("SELECT * FROM municipalities WHERE slug = :slug");
+$stmt->execute([':slug' => getenv('MUNICIPALITY_SLUG')]);
+$municipality = $stmt->fetch();
+
+// Loads News for Moderation
+$stmt = $pdo->prepare("
+    SELECT news_id, title, content, author_name, published_at, created_at
+    FROM news
+    WHERE municipality_id = :mid
+    ORDER BY published_at DESC
+");
+$stmt->execute([':mid' => $municipality['municipality_id']]);
+$news_items = $stmt->fetchAll();
+
+// Shows Login Page if not authenticated
+if ($page === 'login' || !is_admin()) {
+    show_login_page($municipality, $login_error ?? null);
+    exit;
+}
+
+// -----------------------------------------------------------------
+// Loads shared Category Definitions
+// -----------------------------------------------------------------
+$categories = get_categories();
+
+// -----------------------------------------------------------------
+// Loads Contributions and Statistics
+// -----------------------------------------------------------------
+
+// Loads all Contributions for Municipality
+$stmt = $pdo->prepare("
+    SELECT contribution_id, title, category, description, author_name,
+           geom_type, status, likes_count, dislikes_count, created_at, updated_at
+    FROM contributions
+    WHERE municipality_id = :mid
+    ORDER BY created_at DESC
+");
+$stmt->execute([':mid' => $municipality['municipality_id']]);
+$all_contributions = $stmt->fetchAll();
+
+// Counts per Status
+$counts = ['pending' => 0, 'approved' => 0, 'rejected' => 0];
+foreach ($all_contributions as $item) {
+    if (isset($counts[$item['status']])) {
+        $counts[$item['status']]++;
+    }
+}
+$counts['total'] = count($all_contributions);
+
+// -----------------------------------------------------------------
+// Renders Main Page
+// -----------------------------------------------------------------
+?>
+<!DOCTYPE html>
+<html lang="de">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>Moderation — <?= htmlspecialchars($municipality['name']) ?></title>
+    <link rel="icon" href="<?= htmlspecialchars($municipality['logo_path'] ?? 'assets/icon-municipality.png') ?>" type="image/png">
+
+    <!-- Loads CSS Dependencies -->
+
+    <!-- Font Awesome for Icons -->
+    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.5.1/css/all.min.css">
+    
+    <!-- Leaflet -->
+    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/leaflet/1.9.4/leaflet.min.css">
+    
+    <!-- Application Styles -->
+    <link rel="stylesheet" href="styles.css">
+
+
+    <!-- Loads JavaScript Dependencies -->
+    
+    <!-- SweetAlert2 -->
+    <script src="https://cdn.jsdelivr.net/npm/sweetalert2@11.14.0/dist/sweetalert2.all.min.js"></script>
+
+
+    <!-- Loads Municipality Theme from Database -->
+    <style>:root { --color-primary: <?= htmlspecialchars($municipality['primary_color']) ?>; }</style>
+</head>
+<body>
+
+    <!-- ============================================================= -->
+    <!-- Header                                                        -->
+    <!-- ============================================================= -->
+    <div class="page-header">
+        <div class="page-header-inner">
+            <h1><i class="fa-solid fa-shield-halved"></i> Moderationsportal <?= htmlspecialchars($municipality['name']) ?></h1>
+            <div class="page-header-nav">
+                <a href="index.php"><i class="fa-solid fa-map"></i> Bürgerportal</a>
+                <a href="admin.php?page=logout"><i class="fa-solid fa-right-from-bracket"></i> Abmelden</a>
+            </div>
+        </div>
+    </div>
+
+    <div class="page-container">
+
+        <!-- ========================================================= -->
+        <!-- Page Navigation Tabs                                      -->
+        <!-- ========================================================= -->
+        <div class="page-tabs">
+            <button class="page-tab active" onclick="showPageTab('contributions')">
+                <i class="fa-solid fa-list-check"></i> Beiträge
+            </button>
+            <button class="page-tab" onclick="showPageTab('news')">
+                <i class="fa-solid fa-newspaper"></i> Neuigkeiten
+            </button>
+            <button class="page-tab" onclick="showPageTab('stats')">
+                <i class="fa-solid fa-chart-bar"></i> Statistik
+            </button>
+            <button class="page-tab" onclick="showPageTab('users')">
+                <i class="fa-solid fa-users"></i> Benutzer
+            </button>
+        </div>
+
+
+        <!-- ========================================================= -->
+        <!-- Contributions Tab                                         -->
+        <!-- ========================================================= -->
+        <div id="tab-contributions" class="page-tab-content">
+
+            <!-- Statistics Cards -->
+            <div class="stats-grid">
+                <div class="stat-card">
+                    <div class="stat-number"><?= $counts['total'] ?></div>
+                    <div class="stat-label">Alle</div>
+                </div>
+                <div class="stat-card">
+                    <div class="stat-number"><?= $counts['pending'] ?></div>
+                    <div class="stat-label">Ausstehend</div>
+                </div>
+                <div class="stat-card">
+                    <div class="stat-number"><?= $counts['approved'] ?></div>
+                    <div class="stat-label">Akzeptiert</div>
+                </div>
+                <div class="stat-card">
+                    <div class="stat-number"><?= $counts['rejected'] ?></div>
+                    <div class="stat-label">Abgelehnt</div>
+                </div>
+                
+            </div>
+
+            <!-- Status Filter Tabs -->
+            <div class="filter-tabs">
+                <button class="filter-tab active" onclick="filterByStatus('all', this)">
+                    Alle <span class="tab-count"><?= $counts['total'] ?></span>
+                </button>
+                <button class="filter-tab" onclick="filterByStatus('pending', this)">
+                    Ausstehend <span class="tab-count"><?= $counts['pending'] ?></span>
+                </button>
+                <button class="filter-tab" onclick="filterByStatus('approved', this)">
+                    Akzeptiert <span class="tab-count"><?= $counts['approved'] ?></span>
+                </button>
+                <button class="filter-tab" onclick="filterByStatus('rejected', this)">
+                    Abgelehnt <span class="tab-count"><?= $counts['rejected'] ?></span>
+                </button>
+            </div>
+
+            <!-- Sort Controls -->
+            <div class="sort-controls">
+                <span id="visible-count"><?= $counts['total'] ?> Beiträge</span>
+                <select onchange="sortContributions(this.value)">
+                    <option value="date-desc">Neueste zuerst</option>
+                    <option value="date-asc">Älteste zuerst</option>
+                    <option value="category">Nach Kategorie</option>
+                </select>
+            </div>
+
+            <!-- Contribution List -->
+            <div id="contributions-container">
+                <?php if (empty($all_contributions)): ?>
+                    <div class="empty-state">
+                        <i class="fa-solid fa-inbox" style="font-size:2rem;margin-bottom:8px;display:block;"></i>
+                        Noch keine Beiträge vorhanden.
+                    </div>
+                <?php else: ?>
+                    <?php foreach ($all_contributions as $item):
+                        $cat = $categories[$item['category']] ?? ['label' => $item['category'], 'faIcon' => 'fa-question', 'color' => '#999'];
+                        $status_label = ['pending' => 'Ausstehend', 'approved' => 'Akzeptiert', 'rejected' => 'Abgelehnt'];
+                    ?>
+                        <div class="contribution-row"
+                             data-status="<?= $item['status'] ?>"
+                             data-category="<?= htmlspecialchars($item['category']) ?>"
+                             data-date="<?= $item['created_at'] ?>"
+                             data-id="<?= $item['contribution_id'] ?>">
+
+                            <!-- Collapsed Header: Title + Status -->
+                            <div class="contribution-row-header" onclick="toggleRow(this.parentElement)">
+                                <div class="contribution-row-summary">
+                                    <span class="title"><?= htmlspecialchars($item['title']) ?></span>
+                                    <span class="badge badge-category">
+                                        <i class="fa-solid <?= $cat['faIcon'] ?>"></i>
+                                        <?= $cat['label'] ?>
+                                    </span>
+                                    <span class="badge badge-<?= $item['status'] ?>"><?= $status_label[$item['status']] ?? $item['status'] ?></span>
+                                </div>
+                                <i class="fa-solid fa-chevron-down collapse-icon"></i>
+                            </div>
+
+                            <!-- Expanded Detail -->
+                            <div class="contribution-row-detail">
+                                <div class="detail-layout">
+                                    <!-- Map Preview -->
+                                    <div class="detail-map" id="map-<?= $item['contribution_id'] ?>"
+                                         data-contribution-id="<?= $item['contribution_id'] ?>">
+                                    </div>
+
+                                    <!-- Content -->
+                                    <div class="detail-content">
+                                        <?php if ($item['description']): ?>
+                                            <div class="description"><?= htmlspecialchars($item['description']) ?></div>
+                                        <?php else: ?>
+                                            <div class="description empty">Keine Beschreibung vorhanden.</div>
+                                        <?php endif; ?>
+
+                                        <div class="detail-meta">
+                                            <span><i class="fa-solid fa-user"></i> <?= htmlspecialchars($item['author_name']) ?></span>
+                                            <span><i class="fa-solid fa-calendar"></i> <?= date('d.m.Y, H:i', strtotime($item['created_at'])) ?> Uhr</span>
+                                            <span>
+                                                <i class="fa-solid fa-thumbs-up"></i> <?= $item['likes_count'] ?>
+                                                &middot;
+                                                <i class="fa-solid fa-thumbs-down"></i> <?= $item['dislikes_count'] ?>
+                                            </span>
+                                        </div>
+                                    </div>
+                                </div>
+
+                                <!-- Action Buttons -->
+                                <div class="action-buttons">
+                                    <?php if ($item['status'] !== 'approved'): ?>
+                                        <button class="btn btn-approve" onclick="changeStatus(<?= $item['contribution_id'] ?>, 'approved')">
+                                            <i class="fa-solid fa-check"></i> Akzeptieren
+                                        </button>
+                                    <?php endif; ?>
+
+                                    <?php if ($item['status'] !== 'rejected'): ?>
+                                        <button class="btn btn-reject" onclick="changeStatus(<?= $item['contribution_id'] ?>, 'rejected')">
+                                            <i class="fa-solid fa-xmark"></i> Ablehnen
+                                        </button>
+                                    <?php endif; ?>
+
+                                    <?php if ($item['status'] !== 'pending'): ?>
+                                        <button class="btn btn-reset" onclick="changeStatus(..., 'pending')">
+                                            <i class="fa-solid fa-rotate-left"></i> Zurücksetzen
+                                        </button>
+                                    <?php endif; ?>
+
+                                    <button class="btn btn-edit" onclick="editContribution(<?= $item['contribution_id'] ?>, '<?= htmlspecialchars(addslashes($item['title']), ENT_QUOTES) ?>', '<?= htmlspecialchars(addslashes($item['description'] ?? ''), ENT_QUOTES) ?>')">
+                                        <i class="fa-solid fa-pen"></i> Bearbeiten
+                                    </button>
+
+                                    <button class="btn btn-delete" onclick="deleteContribution(<?= $item['contribution_id'] ?>)">
+                                        <i class="fa-solid fa-trash"></i> Löschen
+                                    </button>
+
+                                    <a class="btn btn-map" href="index.php" target="_blank">
+                                        <i class="fa-solid fa-map-location-dot"></i> Karte
+                                    </a>
+                                </div>
+                            </div>
+                        </div>
+                    <?php endforeach; ?>
+                <?php endif; ?>
+            </div>
+        </div>
+
+
+        <!-- ========================================================= -->
+        <!-- News Article Tab                                      -->
+        <!-- ========================================================= -->
+        <div id="tab-news" class="page-tab-content" style="display:none;">
+            <div style="display:flex;justify-content:space-between;align-items:center;margin-bottom:20px;">
+                <h2 style="margin:0;border:none;padding:0;"><i class="fa-solid fa-newspaper"></i> Neuigkeiten</h2>
+                <button class="btn btn-approve" onclick="createNews()">
+                    <i class="fa-solid fa-plus"></i> Nachricht hinzufügen
+                </button>
+            </div>
+
+            <?php if (empty($news_items)): ?>
+                <div class="empty-state">
+                    <i class="fa-solid fa-newspaper" style="font-size:2rem;margin-bottom:8px;display:block;"></i>
+                    Noch keine Neuigkeiten veröffentlicht.
+                </div>
+            <?php else: ?>
+                <?php foreach ($news_items as $news): ?>
+                    <div class="contribution-row" data-id="<?= $news['news_id'] ?>">
+                        <div class="contribution-row-header" onclick="toggleRow(this.parentElement)">
+                            <div class="contribution-row-summary">
+                                <span class="title"><?= htmlspecialchars($news['title']) ?></span>
+                                <span style="font-size:0.8rem;color:#999;">
+                                    <?= date('d.m.Y', strtotime($news['published_at'])) ?>
+                                    · <?= htmlspecialchars($news['author_name']) ?>
+                                </span>
+                            </div>
+                            <i class="fa-solid fa-chevron-down collapse-icon"></i>
+                        </div>
+                        <div class="contribution-row-detail">
+                            <div style="padding:12px 0;font-size:0.9rem;line-height:1.6;color:#5a5a7a;">
+                                <?= nl2br(htmlspecialchars($news['content'])) ?>
+                            </div>
+                            <div class="action-buttons">
+                                <button class="btn btn-edit" onclick="editNews(<?= $news['news_id'] ?>, '<?= htmlspecialchars(addslashes($news['title']), ENT_QUOTES) ?>', '<?= htmlspecialchars(addslashes($news['content']), ENT_QUOTES) ?>', '<?= htmlspecialchars(addslashes($news['author_name']), ENT_QUOTES) ?>')">
+                                    <i class="fa-solid fa-pen"></i> Bearbeiten
+                                </button>
+                                <button class="btn btn-delete" onclick="deleteNews(<?= $news['news_id'] ?>)">
+                                    <i class="fa-solid fa-trash"></i> Löschen
+                                </button>
+                            </div>
+                        </div>
+                    </div>
+                <?php endforeach; ?>
+            <?php endif; ?>
+        </div>
+
+
+        <!-- ========================================================= -->
+        <!-- Placeholder Tabs for future Features                      -->
+        <!-- ========================================================= -->
+        <div id="tab-stats" class="page-tab-content" style="display:none;">
+            <div class="placeholder-content">
+                <i class="fa-solid fa-chart-bar"></i>
+                <p>Statistiken und Analysen - geplant in zukünftiger Version.</p>
+            </div>
+        </div>
+
+        <div id="tab-users" class="page-tab-content" style="display:none;">
+            <div class="placeholder-content">
+                <i class="fa-solid fa-users"></i>
+                <p>Benutzerverwaltung - geplant in zukünftiger Version.</p>
+            </div>
+        </div>
+
+    </div>
+
+
+    <!-- ============================================================= -->
+    <!-- JavaScript: Leaflet, Interactions, API Calls                   -->
+    <!-- ============================================================= -->
+    <script src="https://cdnjs.cloudflare.com/ajax/libs/leaflet/1.9.4/leaflet.min.js"></script>
+
+    <script>
+        // Municipality Configuration for Map Previews
+        const MUNICIPALITY_CENTER = [<?= $municipality['center_lat'] ?>, <?= $municipality['center_lng'] ?>];
+        const MUNICIPALITY_ID = <?= $municipality['municipality_id'] ?>;
+        const API_URL = 'api/contributions.php';
+        const PRIMARY_COLOR = '<?= htmlspecialchars($municipality['primary_color']) ?>';
+
+        // Current Status Filter
+        let currentFilter = 'all';
+
+
+        // =============================================================
+        // Page Tab Navigation
+        // =============================================================
+
+        function showPageTab(tabName) {
+            // Hides all Tab Contents
+            document.querySelectorAll('.page-tab-content').forEach(function (el) {
+                el.style.display = 'none';
+            });
+
+            // Deactivates all Tab Buttons
+            document.querySelectorAll('.page-tab').forEach(function (el) {
+                el.classList.remove('active');
+            });
+
+            // Shows selected Tab and activates Button
+            document.getElementById('tab-' + tabName).style.display = 'block';
+            event.currentTarget.classList.add('active');
+        }
+
+
+        // =============================================================
+        // Collapsible Rows
+        // =============================================================
+
+        function toggleRow(row) {
+            const wasOpen = row.classList.contains('open');
+
+            // Closes all open Rows
+            document.querySelectorAll('.contribution-row.open').forEach(function (el) {
+                el.classList.remove('open');
+            });
+
+            // Toggles clicked Row
+            if (!wasOpen) {
+                row.classList.add('open');
+
+                // Loads Map Preview if not already loaded
+                const mapDiv = row.querySelector('.detail-map');
+                if (mapDiv && !mapDiv.dataset.loaded) {
+                    loadMapPreview(mapDiv);
+                }
+            }
+        }
+
+
+        // =============================================================
+        // Map Preview (Leaflet Mini Map per Contribution)
+        // =============================================================
+
+        function loadMapPreview(mapDiv) {
+            const contributionId = mapDiv.dataset.contributionId;
+
+            // Fetches all Contributions to find the Geometry
+            const formData = new FormData();
+            formData.append('action', 'read');
+            formData.append('municipality_id', MUNICIPALITY_ID);
+            formData.append('status', 'all');
+
+            fetch(API_URL, { method: 'POST', body: formData })
+                .then(function (r) { return r.json(); })
+                .then(function (data) {
+                    if (!data.features) return;
+
+                    // Finds specific Contribution
+                    const feature = data.features.find(function (f) {
+                        return f.properties.contribution_id == contributionId;
+                    });
+
+                    if (!feature) {
+                        mapDiv.innerHTML = '<div style="padding:20px;color:#999;text-align:center;font-size:0.8rem;">Geometrie nicht gefunden.</div>';
+                        return;
+                    }
+
+                    // Creates Leaflet Mini Map
+                    const miniMap = L.map(mapDiv, {
+                        zoomControl: false,
+                        attributionControl: false,
+                        dragging: true,
+                        scrollWheelZoom: false
+                    });
+
+                    L.tileLayer('https://{s}.basemaps.cartocdn.com/light_all/{z}/{x}/{y}{r}.png', {
+                        maxZoom: 20
+                    }).addTo(miniMap);
+
+                    // Adds Geometry to Mini Map
+                    const geojsonLayer = L.geoJSON(feature, {
+                        style: { color: PRIMARY_COLOR, weight: 3, fillOpacity: 0.2 },
+                        pointToLayer: function (f, latlng) {
+                            return L.circleMarker(latlng, {
+                                radius: 8, color: '#ffffff', weight: 2,
+                                fillColor: PRIMARY_COLOR, fillOpacity: 0.9
+                            });
+                        }
+                    }).addTo(miniMap);
+
+                    // Fits Map to Geometry Bounds
+                    const bounds = geojsonLayer.getBounds();
+                    if (bounds.isValid()) {
+                        miniMap.fitBounds(bounds, { padding: [25, 25], maxZoom: 17 });
+                    } else {
+                        miniMap.setView(MUNICIPALITY_CENTER, 15);
+                    }
+
+                    mapDiv.dataset.loaded = 'true';
+                })
+                .catch(function () {
+                    mapDiv.innerHTML = '<div style="padding:20px;color:#999;text-align:center;font-size:0.8rem;">Karte nicht verfügbar.</div>';
+                });
+        }
+
+
+        // =============================================================
+        // Status Filter
+        // =============================================================
+
+        function filterByStatus(status, tabButton) {
+            currentFilter = status;
+
+            // Updates active Tab
+            document.querySelectorAll('.filter-tab').forEach(function (el) {
+                el.classList.remove('active');
+            });
+            tabButton.classList.add('active');
+
+            // Shows/Hides Contribution Rows
+            let visibleCount = 0;
+            document.querySelectorAll('.contribution-row').forEach(function (row) {
+                if (status === 'all' || row.dataset.status === status) {
+                    row.style.display = '';
+                    visibleCount++;
+                } else {
+                    row.style.display = 'none';
+                }
+            });
+
+            // Updates Count Display
+            document.getElementById('visible-count').textContent = visibleCount + ' Beiträge';
+        }
+
+
+        // =============================================================
+        // Sort Contributions
+        // =============================================================
+
+        function sortContributions(sortBy) {
+            const container = document.getElementById('contributions-container');
+            const rows = Array.from(container.querySelectorAll('.contribution-row'));
+
+            rows.sort(function (a, b) {
+                if (sortBy === 'date-desc') {
+                    return new Date(b.dataset.date) - new Date(a.dataset.date);
+                } else if (sortBy === 'date-asc') {
+                    return new Date(a.dataset.date) - new Date(b.dataset.date);
+                } else if (sortBy === 'category') {
+                    return a.dataset.category.localeCompare(b.dataset.category);
+                }
+                return 0;
+            });
+
+            // Reappends sorted Rows
+            rows.forEach(function (row) {
+                container.appendChild(row);
+            });
+        }
+
+
+        // =============================================================
+        // API Helper
+        // =============================================================
+
+        function apiCall(data) {
+            const formData = new FormData();
+            for (const key in data) {
+                formData.append(key, data[key]);
+            }
+            return fetch(API_URL, { method: 'POST', body: formData })
+                .then(function (r) { return r.json(); });
+        }
+
+
+        // =============================================================
+        // Change Contribution Status
+        // =============================================================
+
+        function changeStatus(contributionId, newStatus) {
+            const labels = { approved: 'freigeben', rejected: 'ablehnen', pending: 'zurücksetzen' };
+
+            Swal.fire({
+                title: 'Beitrag ' + labels[newStatus] + '?',
+                showCancelButton: true,
+                confirmButtonText: 'Ja',
+                cancelButtonText: 'Abbrechen',
+                confirmButtonColor: PRIMARY_COLOR
+            }).then(function (result) {
+                if (!result.isConfirmed) return;
+
+                apiCall({
+                    action: 'update',
+                    contribution_id: contributionId,
+                    status: newStatus
+                }).then(function (response) {
+                    if (response.error) {
+                        Swal.fire('Fehler', response.error, 'error');
+                        return;
+                    }
+                    // Reloads Page to reflect Changes
+                    location.reload();
+                });
+            });
+        }
+
+
+        // =============================================================
+        // Edit Contribution (Title and Description)
+        // =============================================================
+
+        function editContribution(contributionId, currentTitle, currentDescription) {
+            Swal.fire({
+                title: 'Beitrag bearbeiten',
+                html:
+                    '<div style="text-align:left;">' +
+                        '<div style="margin-bottom:12px;">' +
+                            '<label style="display:block;font-weight:600;font-size:1.15rem;margin-bottom:4px;">Titel</label>' +
+                            '<input id="swal-title" class="swal2-input" style="margin:0;width:100%;" value="' + currentTitle + '">' +
+                        '</div>' +
+                        '<div>' +
+                            '<label style="display:block;font-weight:600;font-size:1.15rem;margin-bottom:4px;">Beschreibung</label>' +
+                            '<textarea id="swal-description" class="swal2-textarea" style="margin:0;width:100%;">' + currentDescription + '</textarea>' +
+                        '</div>' +
+                    '</div>',
+                showCancelButton: true,
+                confirmButtonText: 'Speichern',
+                cancelButtonText: 'Abbrechen',
+                confirmButtonColor: PRIMARY_COLOR,
+                preConfirm: function () {
+                    return {
+                        title: document.getElementById('swal-title').value.trim(),
+                        description: document.getElementById('swal-description').value.trim()
+                    };
+                }
+            }).then(function (result) {
+                if (!result.isConfirmed) return;
+
+                apiCall({
+                    action: 'update',
+                    contribution_id: contributionId,
+                    title: result.value.title,
+                    description: result.value.description
+                }).then(function (response) {
+                    if (response.error) {
+                        Swal.fire('Fehler', response.error, 'error');
+                        return;
+                    }
+                    Swal.fire('Gespeichert!', 'Beitrag wurde aktualisiert.', 'success')
+                        .then(function () { location.reload(); });
+                });
+            });
+        }
+
+
+        // =============================================================
+        // Delete Contribution
+        // =============================================================
+
+        function deleteContribution(contributionId) {
+            Swal.fire({
+                title: 'Beitrag löschen?',
+                text: 'Diese Aktion kann nicht rückgängig gemacht werden.',
+                icon: 'warning',
+                showCancelButton: true,
+                confirmButtonText: 'Beitrag löschen',
+                cancelButtonText: 'Abbrechen',
+                confirmButtonColor: '#c62828'
+            }).then(function (result) {
+                if (!result.isConfirmed) return;
+
+                apiCall({
+                    action: 'delete',
+                    contribution_id: contributionId
+                }).then(function (response) {
+                    if (response.error) {
+                        Swal.fire('Fehler', response.error, 'error');
+                        return;
+                    }
+                    Swal.fire('Gelöscht!', 'Beitrag wurde gelöscht.', 'success')
+                        .then(function () { location.reload(); });
+                });
+            });
+        }
+        
+
+        // =============================================================
+        // Create News Article
+        // =============================================================
+
+        function createNews() {
+            Swal.fire({
+                title: 'Neuigkeit hinzufügen',
+                html:
+                    '<div style="text-align:left;">' +
+                        '<div style="margin-bottom:12px;">' +
+                            '<label style="display:block;font-weight:600;font-size:1.15rem;margin-bottom:4px;">Titel</label>' +
+                            '<input id="swal-news-title" class="swal2-input" style="margin:0;width:100%;" placeholder="Titel der Neuigkeit">' +
+                        '</div>' +
+                        '<div style="margin-bottom:12px;">' +
+                            '<label style="display:block;font-weight:600;font-size:1.15rem;margin-bottom:4px;">Inhalt</label>' +
+                            '<textarea id="swal-news-content" class="swal2-textarea" style="margin:0;width:100%;" placeholder="Neuigkeit verfassen..."></textarea>' +
+                        '</div>' +
+                        '<div>' +
+                            '<label style="display:block;font-weight:600;font-size:1.15rem;margin-bottom:4px;">Autor</label>' +
+                            '<input id="swal-news-author" class="swal2-input" style="margin:0;width:100%;" value="Stadtverwaltung">' +
+                        '</div>' +
+                    '</div>',
+                showCancelButton: true,
+                confirmButtonText: 'Veröffentlichen',
+                cancelButtonText: 'Abbrechen',
+                confirmButtonColor: PRIMARY_COLOR,
+                preConfirm: function () {
+                    const title = document.getElementById('swal-news-title').value.trim();
+                    const content = document.getElementById('swal-news-content').value.trim();
+                    const author = document.getElementById('swal-news-author').value.trim() || 'Stadtverwaltung';
+                    if (!title || !content) {
+                        Swal.showValidationMessage('Titel und Inhalt sind Pflichtfelder.');
+                        return false;
+                    }
+                    return { title: title, content: content, author_name: author };
+                }
+            }).then(function (result) {
+                if (!result.isConfirmed) return;
+
+                const formData = new FormData();
+                formData.append('action', 'create_news');
+                formData.append('municipality_id', MUNICIPALITY_ID);
+                formData.append('title', result.value.title);
+                formData.append('content', result.value.content);
+                formData.append('author_name', result.value.author_name);
+
+                fetch(API_URL, { method: 'POST', body: formData })
+                    .then(function (r) { return r.json(); })
+                    .then(function (response) {
+                        if (response.error) {
+                            Swal.fire('Fehler', response.error, 'error');
+                            return;
+                        }
+                        Swal.fire('Veröffentlicht!', 'Neuigkeit wurde veröffentlicht.', 'success')
+                            .then(function () { location.reload(); });
+                    });
+            });
+        }
+
+
+        // =============================================================
+        // Edit News Article
+        // =============================================================
+        function editNews(newsId, currentTitle, currentContent, currentAuthor) {
+            Swal.fire({
+                title: 'Neuigkeit bearbeiten',
+                html:
+                    '<div style="text-align:left;">' +
+                        '<div style="margin-bottom:12px;">' +
+                            '<label style="display:block;font-weight:600;font-size:1.15rem;margin-bottom:4px;">Titel</label>' +
+                            '<input id="swal-news-title" class="swal2-input" style="margin:0;width:100%;" value="' + currentTitle + '">' +
+                        '</div>' +
+                        '<div style="margin-bottom:12px;">' +
+                            '<label style="display:block;font-weight:600;font-size:1.15rem;margin-bottom:4px;">Inhalt</label>' +
+                            '<textarea id="swal-news-content" class="swal2-textarea" style="margin:0;width:100%;">' + currentContent + '</textarea>' +
+                        '</div>' +
+                        '<div>' +
+                            '<label style="display:block;font-weight:600;font-size:1.15rem;margin-bottom:4px;">Autor</label>' +
+                            '<input id="swal-news-author" class="swal2-input" style="margin:0;width:100%;" value="' + currentAuthor + '">' +
+                        '</div>' +
+                    '</div>',
+                showCancelButton: true,
+                confirmButtonText: 'Speichern',
+                cancelButtonText: 'Abbrechen',
+                confirmButtonColor: PRIMARY_COLOR,
+                preConfirm: function () {
+                    return {
+                        title: document.getElementById('swal-news-title').value.trim(),
+                        content: document.getElementById('swal-news-content').value.trim(),
+                        author_name: document.getElementById('swal-news-author').value.trim() || 'Stadtverwaltung'
+                    };
+                }
+            }).then(function (result) {
+                if (!result.isConfirmed) return;
+
+                const formData = new FormData();
+                formData.append('action', 'update_news');
+                formData.append('news_id', newsId);
+                formData.append('title', result.value.title);
+                formData.append('content', result.value.content);
+                formData.append('author_name', result.value.author_name);
+
+                fetch(API_URL, { method: 'POST', body: formData })
+                    .then(function (r) { return r.json(); })
+                    .then(function (response) {
+                        if (response.error) {
+                            Swal.fire('Fehler', response.error, 'error');
+                            return;
+                        }
+                        Swal.fire('Gespeichert!', 'Neuigkeit wurde aktualisiert.', 'success')
+                            .then(function () { location.reload(); });
+                    });
+            });
+        }
+
+
+        // =============================================================
+        // Create News Article
+        // =============================================================
+        function deleteNews(newsId) {
+            Swal.fire({
+                title: 'Neuigkeit löschen?',
+                text: 'Diese Aktion kann nicht rückgängig gemacht werden.',
+                icon: 'warning',
+                showCancelButton: true,
+                confirmButtonText: 'Löschen',
+                cancelButtonText: 'Abbrechen',
+                confirmButtonColor: '#c62828'
+            }).then(function (result) {
+                if (!result.isConfirmed) return;
+
+                const formData = new FormData();
+                formData.append('action', 'delete_news');
+                formData.append('news_id', newsId);
+
+                fetch(API_URL, { method: 'POST', body: formData })
+                    .then(function (r) { return r.json(); })
+                    .then(function (response) {
+                        if (response.error) {
+                            Swal.fire('Fehler', response.error, 'error');
+                            return;
+                        }
+                        Swal.fire('Gelöscht!', 'Neuigkeit wurde gelöscht.', 'success')
+                            .then(function () { location.reload(); });
+                    });
+            });
+        }
+
+    </script>
+
+</body>
+</html>
+
+
+<?php
+// -----------------------------------------------------------------
+// Login Page
+// -----------------------------------------------------------------
+function show_login_page($municipality, $error = null) {
+?>
+<!DOCTYPE html>
+<html lang="de">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>Moderation - Anmeldung</title>
+    <link rel="icon" href="<?= htmlspecialchars($municipality['logo_path'] ?? 'assets/icon-municipality.png') ?>" type="image/png">    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.5.1/css/all.min.css">
+    <link rel="stylesheet" href="styles.css">
+    <style>:root { --color-primary: <?= htmlspecialchars($municipality['primary_color']) ?>; }</style>
+</head>
+<body>
+    <div class="login-wrapper">
+        <div class="login-box">
+            <h1><i class="fa-solid fa-shield-halved"></i> Moderationsportal</h1>
+            <p>Bitte geben Sie das Moderationspasswort ein.</p>
+            <?php if ($error): ?>
+                <div class="login-error"><i class="fa-solid fa-triangle-exclamation"></i> <?= htmlspecialchars($error) ?></div>
+            <?php endif; ?>
+            <form method="POST" action="admin.php?page=login">
+                <input type="password" name="password" placeholder="Passwort" autofocus>
+                <button type="submit"><i class="fa-solid fa-right-to-bracket"></i> Anmelden</button>
+            </form>
+            <div class="back-link"><i class="fa fa-arrow-left"></i></i> <a href="index.php">Zurück zum Bürgerportal</a></div>
+        </div>
+    </div>
+</body>
+</html>
+<?php
+}
+?>

public/api/auth.php

@@ -0,0 +1,28 @@
+<?php
+// =====================================================================
+// Admin Authentication Helper
+// Provides simple Password-based Session Authentication for the
+// Moderation Page. Reads Password from .env File.
+// ToDo: Replace with full User Authentication in Phase 3-3.
+// =====================================================================
+
+// Checks if current Session is authenticated as Admin
+function is_admin() {
+    return isset($_SESSION['is_admin']) && $_SESSION['is_admin'] === true;
+}
+
+// Authenticates with Password, returns true on Success
+function admin_login($password) {
+    $correct = getenv('ADMIN_PASSWORD');
+    if ($correct && $password === $correct) {
+        $_SESSION['is_admin'] = true;
+        return true;
+    }
+    return false;
+}
+
+// Logs out Admin Session
+function admin_logout() {
+    $_SESSION['is_admin'] = false;
+    session_destroy();
+}

public/api/contributions.php

@@ -0,0 +1,680 @@
+<?php
+// =====================================================================
+// Contributions API Endpoint
+// Handles CRUD Operations for Contributions (Points, Lines, Polygons)
+// and Voting. Actions are  determined by the 'action' Parameter in 
+// the Request.
+//
+// Supported Actions:
+//   read   — Load approved Contributions
+//   create — Insert Contributions
+//   update — Update Contributions
+//   delete — Delete Contributions
+//   vote   — Like or Dislike Contributions
+// =====================================================================
+
+require_once __DIR__ . '/db.php';
+
+
+// ---------------------------------------------------------------------
+// Read Action Parameter and Route to correct Handler
+// ---------------------------------------------------------------------
+$input = get_input();
+$action = $input['action'] ?? '';
+
+switch ($action) {
+    case 'read':
+        handle_read($input);
+        break;
+    case 'create':
+        handle_create($input);
+        break;
+    case 'update':
+        handle_update($input);
+        break;
+    case 'delete':
+        handle_delete($input);
+        break;
+    case 'vote':
+        handle_vote($input);
+        break;
+    case 'create_news':
+        handle_create_news($input);
+        break;
+    case 'update_news':
+        handle_update_news($input);
+        break;
+    case 'delete_news':
+        handle_delete_news($input);
+        break;
+    case 'read_comments':
+        handle_read_comments($input);
+        break;
+    case 'create_comment':
+        handle_create_comment($input);
+        break;
+    case 'delete_comment':
+        handle_delete_comment($input);
+        break;
+    default:
+        error_response('Unknown Action. Supported Actions are read, create, update, delete, vote.');
+}
+
+
+// =====================================================================
+// Action Handlers for Contributions
+// =====================================================================
+
+
+// ---------------------------------------------------------------------
+// READ: Loads approved Contributions as GeoJSON FeatureCollection
+// Required: municipality_id
+// Optional: category
+// ---------------------------------------------------------------------
+function handle_read($input) {
+    $pdo = get_db();
+
+    // Validate Input
+    $missing = validate_required($input, ['municipality_id']);
+    if (!empty($missing)) {
+        error_response('Missing Fields: ' . implode(', ', $missing));
+    }
+
+    $municipality_id = $input['municipality_id'];
+
+    // Builds SQL Query with Placeholders for prepared Statement
+    $sql = "SELECT *, ST_AsGeoJSON(geom) AS geojson 
+            FROM contributions 
+            WHERE municipality_id = :mid";
+    $params = [':mid' => $municipality_id];
+
+    // Optional: Filters by Status (Default: only approved)
+    $status = $input['status'] ?? 'approved';
+    if ($status !== 'all') {
+        $sql .= " AND status = :status";
+        $params[':status'] = $status;
+    }
+
+    // Optional: Filters by Category
+    if (!empty($input['category'])) {
+        $sql .= " AND category = :cat";
+        $params[':cat'] = $input['category'];
+    }
+
+    $sql .= " ORDER BY created_at DESC";
+
+    try {
+        // Prepared Statement to prevent SQL Injection
+        $stmt = $pdo->prepare($sql);
+        $stmt->execute($params);
+        // Fetches Results as PHP-Array
+        $rows = $stmt->fetchAll();
+    } catch (PDOException $e) {
+        error_response('Database Error: ' . $e->getMessage(), 500);
+    }
+
+    // Builds GeoJSON FeatureCollection
+    $features = [];
+
+    foreach ($rows as $row) {
+        $geometry = json_decode($row['geojson']);
+
+        // Removes raw Geometry Columns from Properties
+        unset($row['geom']);
+        unset($row['geojson']);
+
+        $features[] = [
+            'type'       => 'Feature',
+            'geometry'   => $geometry,
+            'properties' => $row
+        ];
+    }
+
+    $featureCollection = [
+        'type'     => 'FeatureCollection',
+        'features' => $features
+    ];
+
+    // Includes User's Votes for persistent Vote Display
+    // Returns which Contributions the current Browser has voted on
+    $browser_id = $input['browser_id'] ?? '';
+    if ($browser_id !== '') {
+        $stmt = $pdo->prepare("
+            SELECT contribution_id, vote_type 
+            FROM votes 
+            WHERE browser_id = :bid
+        ");
+        $stmt->execute([':bid' => $browser_id]);
+        $user_votes = [];
+        foreach ($stmt->fetchAll() as $v) {
+            $user_votes[$v['contribution_id']] = $v['vote_type'];
+        }
+        $featureCollection['user_votes'] = $user_votes;
+    }
+
+    json_response($featureCollection);
+}
+
+
+// ---------------------------------------------------------------------
+// CREATE: Inserts new Contributions
+// Required: municipality_id, geom, geom_type, category, title, author_name
+// Optional: description
+// ---------------------------------------------------------------------
+// ---------------------------------------------------------------------
+// CREATE: Inserts new Contributions with optional Photo Upload
+// Required: municipality_id, geom, geom_type, category, title, author_name
+// Optional: description, browser_id, photo (File Upload)
+// ---------------------------------------------------------------------
+function handle_create($input) {
+    $pdo = get_db();
+
+    // Validates Input
+    $missing = validate_required($input, [
+        'municipality_id', 'geom', 'geom_type', 'category', 'title', 'author_name'
+    ]);
+    if (!empty($missing)) {
+        error_response('Missing Fields: ' . implode(', ', $missing));
+    }
+
+    // Validates Geometry Type
+    $valid_geom_types = ['point', 'line', 'polygon'];
+    if (!in_array($input['geom_type'], $valid_geom_types)) {
+        error_response('Invalid Geometry Type. Must be: ' . implode(', ', $valid_geom_types));
+    }
+
+    // Validates GeoJSON
+    $geojson = json_decode($input['geom']);
+    if (!$geojson || !isset($geojson->type)) {
+        error_response('Invalid GeoJSON in Geometry Field.');
+    }
+
+    // Handles Photo Upload
+    $photo_path = null;
+    if (isset($_FILES['photo']) && $_FILES['photo']['error'] === UPLOAD_ERR_OK) {
+        $photo_path = handle_photo_upload($_FILES['photo']);
+        if (!$photo_path) {
+            error_response('Photo Upload failed. JPG, PNG, GIF and WebP up to 5 MB are allowed.');
+        }
+    }
+
+    // Prepared SQL Statement
+    try {
+        $stmt = $pdo->prepare("
+            INSERT INTO contributions 
+                (municipality_id, geom, geom_type, category, title, description, author_name, browser_id, photo_path)
+            VALUES 
+                (:mid, ST_SetSRID(ST_GeomFromGeoJSON(:geom), 4326), :geom_type, 
+                 :category, :title, :description, :author_name, :browser_id, :photo_path)
+        ");
+
+        $stmt->execute([
+            ':mid'         => $input['municipality_id'],
+            ':geom'        => $input['geom'],
+            ':geom_type'   => $input['geom_type'],
+            ':category'    => $input['category'],
+            ':title'       => $input['title'],
+            ':description' => $input['description'] ?? '',
+            ':author_name' => $input['author_name'],
+            ':browser_id'  => $input['browser_id'] ?? null,
+            ':photo_path'  => $photo_path
+        ]);
+
+        json_response([
+            'message'         => 'Contribution created successfully.',
+            'contribution_id' => (int) $pdo->lastInsertId()
+        ], 201);
+
+    } catch (PDOException $e) {
+        error_response('Database Error: ' . $e->getMessage(), 500);
+    }
+}
+
+
+// ---------------------------------------------------------------------
+// UPDATE: Updates existing Contributions
+// Required: contribution_id
+// Optional: category, title, description, status
+// Provided Fields are updated. Others remain unchanged.
+// ---------------------------------------------------------------------
+function handle_update($input) {
+    $pdo = get_db();
+
+    // Validates Input
+    $missing = validate_required($input, ['contribution_id']);
+    if (!empty($missing)) {
+        error_response('Missing Fields: ' . implode(', ', $missing));
+    }
+
+    $contribution_id = $input['contribution_id'];
+
+    // Checks if Contribution exists
+    $stmt = $pdo->prepare("SELECT contribution_id FROM contributions WHERE contribution_id = :id");
+    $stmt->execute([':id' => $contribution_id]);
+    if (!$stmt->fetch()) {
+        error_response('Contribution not found.', 404);
+    }
+
+    // Builds dynamic SQL Query to only update sent Fields
+    $updatable_fields = ['category', 'title', 'description', 'status', 'address'];
+    $set_clauses = [];
+    $params = [':id' => $contribution_id];
+
+    foreach ($updatable_fields as $field) {
+        if (isset($input[$field]) && $input[$field] !== '') {
+            $set_clauses[] = "$field = :$field";
+            $params[":$field"] = $input[$field];
+        }
+    }
+
+    if (empty($set_clauses)) {
+        error_response('No Fields to update. Provide at least one of: ' . implode(', ', $updatable_fields));
+    }
+
+    // Validates Status
+    if (isset($params[':status'])) {
+        $valid_statuses = ['pending', 'approved', 'rejected', 'in_progress', 'done'];
+        if (!in_array($params[':status'], $valid_statuses)) {
+            error_response('Invalid Status. Must be: ' . implode(', ', $valid_statuses));
+        }
+    }
+    
+    // Builds SQL Statement
+    $sql = "UPDATE contributions SET " . implode(', ', $set_clauses) . " WHERE contribution_id = :id";
+
+    // Prepared SQL Statement
+    try {
+        $stmt = $pdo->prepare($sql);
+        $stmt->execute($params);
+
+        json_response(['message' => 'Contribution updated successfully.']);
+
+    } catch (PDOException $e) {
+        error_response('Database Error: ' . $e->getMessage(), 500);
+    }
+}
+
+
+// ---------------------------------------------------------------------
+// DELETE: Deletes existing Contributions
+// Required: contribution_id
+// Associated Votes are deleted automatically
+// ---------------------------------------------------------------------
+function handle_delete($input) {
+    $pdo = get_db();
+
+    // Validates Input
+    $missing = validate_required($input, ['contribution_id']);
+    if (!empty($missing)) {
+        error_response('Missing Fields: ' . implode(', ', $missing));
+    }
+
+    $contribution_id = $input['contribution_id'];
+
+    // Checks if Contribution exists
+    $stmt = $pdo->prepare("SELECT contribution_id FROM contributions WHERE contribution_id = :id");
+    $stmt->execute([':id' => $contribution_id]);
+    if (!$stmt->fetch()) {
+        error_response('Contribution not found.', 404);
+    }
+
+    // Prepared SQL Statement
+    try {
+        $stmt = $pdo->prepare("DELETE FROM contributions WHERE contribution_id = :id");
+        $stmt->execute([':id' => $contribution_id]);
+
+        json_response(['message' => 'Contribution deleted successfully.']);
+
+    } catch (PDOException $e) {
+        error_response('Database Error: ' . $e->getMessage(), 500);
+    }
+}
+
+
+// ---------------------------------------------------------------------
+// VOTE: Likes or Dislikes a Contribution
+// Required: contribution_id, voter_name, vote_type
+// Database Trigger automatically updates Likes and Dislikes Count
+// UNIQUE Constraint prevents duplicate Votes per Voter.
+// ---------------------------------------------------------------------
+function handle_vote($input) {
+    $pdo = get_db();
+
+    // Validates Input
+    $missing = validate_required($input, ['contribution_id', 'voter_name', 'vote_type']);
+    if (!empty($missing)) {
+        error_response('Missing Fields: ' . implode(', ', $missing));
+    }
+
+    // Validates Vote Type
+    $valid_vote_types = ['like', 'dislike'];
+    if (!in_array($input['vote_type'], $valid_vote_types)) {
+        error_response('Invalid vote_type. Must be: ' . implode(', ', $valid_vote_types));
+    }
+
+    // Checks if Contribution exists
+    $stmt = $pdo->prepare("SELECT contribution_id FROM contributions WHERE contribution_id = :id");
+    $stmt->execute([':id' => $input['contribution_id']]);
+    if (!$stmt->fetch()) {
+        error_response('Contribution not found.', 404);
+    }
+
+    // Prepared SQL Statement
+    try {
+        // Checks if Voter already voted on this Contribution
+        $browser_id = $input['browser_id'] ?? '';
+        if (empty($browser_id)) {
+            error_response('Browser ID required for Voting.');
+        }
+
+        $stmt = $pdo->prepare("
+            SELECT vote_id, vote_type FROM votes
+            WHERE contribution_id = :cid AND browser_id = :bid
+        ");
+        $stmt->execute([':cid' => $input['contribution_id'], ':bid' => $browser_id]);
+        $existing = $stmt->fetch();
+
+        if ($existing) {
+            if ($existing['vote_type'] === $input['vote_type']) {
+                // Same Vote Type — Removes Vote
+                $stmt = $pdo->prepare("DELETE FROM votes WHERE vote_id = :vid");
+                $stmt->execute([':vid' => $existing['vote_id']]);
+                json_response(['message' => 'Vote removed.', 'action' => 'removed']);
+            } else {
+                // Different Vote Type — Switches Vote
+                $stmt = $pdo->prepare("DELETE FROM votes WHERE vote_id = :vid");
+                $stmt->execute([':vid' => $existing['vote_id']]);
+
+                $stmt = $pdo->prepare("
+                    INSERT INTO votes (contribution_id, voter_name, vote_type, browser_id)
+                    VALUES (:cid, :voter, :vtype, :bid)
+                ");
+                $stmt->execute([
+                    ':cid'   => $input['contribution_id'],
+                    ':voter' => $input['voter_name'],
+                    ':vtype' => $input['vote_type'],
+                    ':bid'   => $browser_id
+                ]);
+                json_response(['message' => 'Vote changed.', 'action' => 'changed'], 200);
+            }
+        } else {
+            // No existing Vote — Inserts Vote
+            $stmt = $pdo->prepare("
+                    INSERT INTO votes (contribution_id, voter_name, vote_type, browser_id)
+                    VALUES (:cid, :voter, :vtype, :bid)
+                ");
+                $stmt->execute([
+                    ':cid'   => $input['contribution_id'],
+                    ':voter' => $input['voter_name'],
+                    ':vtype' => $input['vote_type'],
+                    ':bid'   => $browser_id
+                ]);
+            json_response(['message' => 'Vote recorded.', 'action' => 'created'], 201);
+        }
+
+    } catch (PDOException $e) {
+        error_response('Database Error: ' . $e->getMessage(), 500);
+    }
+}
+
+
+// =====================================================================
+// Action Handlers for News
+// =====================================================================
+
+// ---------------------------------------------------------------------
+// CREATE NEWS: Inserts new News Entry
+// Required: municipality_id, title, content
+// ---------------------------------------------------------------------
+function handle_create_news($input) {
+    $pdo = get_db();
+    $missing = validate_required($input, ['municipality_id', 'title', 'content']);
+    if (!empty($missing)) {
+        error_response('Missing Fields: ' . implode(', ', $missing));
+    }
+
+    try {
+        $stmt = $pdo->prepare("
+            INSERT INTO news (municipality_id, title, content, author_name)
+            VALUES (:mid, :title, :content, :author)
+        ");
+        $stmt->execute([
+            ':mid'     => $input['municipality_id'],
+            ':title'   => $input['title'],
+            ':content' => $input['content'],
+            ':author'  => $input['author_name'] ?? 'Stadtverwaltung'
+        ]);
+        json_response(['message' => 'News created successfully.', 'news_id' => (int) $pdo->lastInsertId()], 201);
+    } catch (PDOException $e) {
+        error_response('Database Error: ' . $e->getMessage(), 500);
+    }
+}
+
+// ---------------------------------------------------------------------
+// UPDATE NEWS: Updates existing News Entry
+// Required: news_id
+// Optional: title, content
+// ---------------------------------------------------------------------
+function handle_update_news($input) {
+    $pdo = get_db();
+    $missing = validate_required($input, ['news_id']);
+    if (!empty($missing)) {
+        error_response('Missing Fields: ' . implode(', ', $missing));
+    }
+
+    $set = [];
+    $params = [':id' => $input['news_id']];
+
+    foreach (['title', 'content', 'author_name'] as $field) {
+        if (isset($input[$field]) && $input[$field] !== '') {
+            $set[] = "$field = :$field";
+            $params[":$field"] = $input[$field];
+        }
+    }
+
+    if (empty($set)) {
+        error_response('No Fields to update.');
+    }
+
+    try {
+        $stmt = $pdo->prepare("UPDATE news SET " . implode(', ', $set) . " WHERE news_id = :id");
+        $stmt->execute($params);
+        json_response(['message' => 'News updated successfully.']);
+    } catch (PDOException $e) {
+        error_response('Database Error: ' . $e->getMessage(), 500);
+    }
+}
+
+// ---------------------------------------------------------------------
+// DELETE NEWS: Deletes existing News Entry
+// Required: news_id
+// ---------------------------------------------------------------------
+function handle_delete_news($input) {
+    $pdo = get_db();
+    $missing = validate_required($input, ['news_id']);
+    if (!empty($missing)) {
+        error_response('Missing Fields: ' . implode(', ', $missing));
+    }
+
+    try {
+        $stmt = $pdo->prepare("DELETE FROM news WHERE news_id = :id");
+        $stmt->execute([':id' => $input['news_id']]);
+        json_response(['message' => 'News deleted successfully.']);
+    } catch (PDOException $e) {
+        error_response('Database Error: ' . $e->getMessage(), 500);
+    }
+}
+
+
+// =====================================================================
+// Action Handlers for Photos
+// =====================================================================
+
+// ---------------------------------------------------------------------
+// PHOTO UPLOAD: Validates and Saves uploaded Photo Files
+// Returns relative Path on Success, null on Failure.
+// Allowed: JPG, PNG, GIF, WebP. with maximum Size of 5 MB.
+// ---------------------------------------------------------------------
+function handle_photo_upload($file) {
+    // Validates File Size
+    $max_size = 5 * 1024 * 1024;
+    if ($file['size'] > $max_size) {
+        return null;
+    }
+
+    // Validates MIME Type
+    $allowed_types = ['image/jpeg', 'image/png', 'image/gif', 'image/webp'];
+    $finfo = finfo_open(FILEINFO_MIME_TYPE);
+    $mime = finfo_file($finfo, $file['tmp_name']);
+    finfo_close($finfo);
+
+    if (!in_array($mime, $allowed_types)) {
+        return null;
+    }
+
+    // Generates unique Filename
+    $ext = [
+        'image/jpeg' => 'jpg',
+        'image/png'  => 'png',
+        'image/gif'  => 'gif',
+        'image/webp' => 'webp'
+    ][$mime];
+
+    $filename = uniqid('photo_', true) . '.' . $ext;
+    $upload_dir = __DIR__ . '/../uploads/photos/';
+    $target_path = $upload_dir . $filename;
+
+    // Creates Upload Directory
+    if (!is_dir($upload_dir)) {
+        mkdir($upload_dir, 0755, true);
+    }
+
+    // Moves uploaded File
+    if (move_uploaded_file($file['tmp_name'], $target_path)) {
+        return 'uploads/photos/' . $filename;
+    }
+
+    return null;
+}
+
+// =====================================================================
+// Action Handlers for Comments
+// =====================================================================
+
+// ---------------------------------------------------------------------
+// READ COMMENTS: Loads Comments for a Contribution
+// Returns Comments sorted by Date (newest first)
+// Required: contribution_id
+// ---------------------------------------------------------------------
+function handle_read_comments($input) {
+    $pdo = get_db();
+
+    $missing = validate_required($input, ['contribution_id']);
+    if (!empty($missing)) {
+        error_response('Missing Fields: ' . implode(', ', $missing));
+    }
+
+    try {
+        $stmt = $pdo->prepare("
+            SELECT comment_id, contribution_id, author_name, browser_id, content, created_at
+            FROM comments
+            WHERE contribution_id = :cid
+            ORDER BY created_at ASC
+        ");
+        $stmt->execute([':cid' => $input['contribution_id']]);
+        $comments = $stmt->fetchAll();
+
+        json_response(['comments' => $comments, 'count' => count($comments)]);
+
+    } catch (PDOException $e) {
+        error_response('Database Error: ' . $e->getMessage(), 500);
+    }
+}
+
+
+// ---------------------------------------------------------------------
+// CREATE COMMENT: Adds Comments to Contributions
+// Required: contribution_id, author_name, content
+// Optional: browser_id
+// ---------------------------------------------------------------------
+function handle_create_comment($input) {
+    $pdo = get_db();
+
+    $missing = validate_required($input, ['contribution_id', 'author_name', 'content']);
+    if (!empty($missing)) {
+        error_response('Missing Fields: ' . implode(', ', $missing));
+    }
+
+    // Validates Content Length
+    if (strlen($input['content']) > 1000) {
+        error_response('Comment too long. Maximum 1000 Characters.');
+    }
+
+    // Checks if Contribution exists
+    $stmt = $pdo->prepare("SELECT contribution_id FROM contributions WHERE contribution_id = :id");
+    $stmt->execute([':id' => $input['contribution_id']]);
+    if (!$stmt->fetch()) {
+        error_response('Contribution not found.', 404);
+    }
+
+    try {
+        $stmt = $pdo->prepare("
+            INSERT INTO comments (contribution_id, author_name, browser_id, content)
+            VALUES (:cid, :author, :bid, :content)
+        ");
+        $stmt->execute([
+            ':cid'     => $input['contribution_id'],
+            ':author'  => $input['author_name'],
+            ':bid'     => $input['browser_id'] ?? null,
+            ':content' => $input['content']
+        ]);
+
+        $stmt2 = $pdo->prepare("
+            UPDATE contributions
+            SET comment_count = comment_count + 1 
+            WHERE contribution_id = :cid;
+        ");
+
+        $stmt2->execute([':cid' => $input['contribution_id']]);
+
+        json_response([
+            'message'    => 'Comment created successfully.',
+            'comment_id' => (int) $pdo->lastInsertId()
+        ], 201);
+
+    } catch (PDOException $e) {
+        error_response('Database Error: ' . $e->getMessage(), 500);
+    }
+}
+
+
+// ---------------------------------------------------------------------
+// DELETE COMMENT: Removes a Comment
+// Required: comment_id
+// ---------------------------------------------------------------------
+function handle_delete_comment($input) {
+    $pdo = get_db();
+
+    $missing = validate_required($input, ['comment_id']);
+    if (!empty($missing)) {
+        error_response('Missing Fields: ' . implode(', ', $missing));
+    }
+
+    try {
+        $stmt = $pdo->prepare("DELETE FROM comments WHERE comment_id = :id");
+        $stmt->execute([':id' => $input['comment_id']]);
+
+       $stmt2 = $pdo->prepare("
+            UPDATE contributions
+            SET comment_count = comment_count - 1 
+            WHERE contribution_id = :cid;
+        ");
+
+        $stmt2->execute([':cid' => $input['contribution_id']]);
+
+        json_response(['message' => 'Comment deleted successfully.']);
+
+    } catch (PDOException $e) {
+        error_response('Database Error: ' . $e->getMessage(), 500);
+    }
+}

public/api/db.php

@@ -0,0 +1,113 @@
+<?php
+// =====================================================================
+// Database Helper Functions
+// Provides PDO Connection, JSON Response Helpers, Category Definitions
+// and shared miscellaneous Functions for all API Endpoints.
+// =====================================================================
+
+require_once __DIR__ . '/init.php';
+
+
+// ---------------------------------------------------------------------
+// JSON Response
+// Creates JSON Response including HTTP Status Code and HTTP Header 
+// for every API Endpoint and terminates the Script.
+// ---------------------------------------------------------------------
+function json_response($data, $status_code = 200) {
+    // Defines HTTP Status Code and HTTP Header
+    // 1XX Informational, 2XX Successful, 3XX Redirection,
+    // 4XX Client Error, 5XX Server Error
+    http_response_code($status_code);
+    header('Content-Type: application/json; charset=utf-8');
+    // Converts PHP-Array to JSON-String
+    echo json_encode($data, JSON_UNESCAPED_UNICODE);
+    exit;
+}
+
+
+// ---------------------------------------------------------------------
+// Error Response
+// Creates standardized Error Responses with Error Message and HTTP Status
+// Code. Uses json_response() for consistent Formatting.
+// ---------------------------------------------------------------------
+function error_response($message, $status_code = 400) {
+    json_response(['error' => $message], $status_code);
+}
+
+
+// ---------------------------------------------------------------------
+// Validate Required Fields
+// Checks if specified Fields exist in the given Data Array and are
+// non-empty. Returns an Array of missing Field Names, or an empty
+// Array if all Fields are present.
+// ---------------------------------------------------------------------
+function validate_required($data, $fields) {
+    $missing = [];
+
+    foreach ($fields as $field) {
+        // Checks if Fields exists in Data Array and are not empty
+        if (!isset($data[$field]) || trim($data[$field]) === '') {
+            $missing[] = $field;
+        }
+    }
+    // Returns Array of missing Fields or emty Array
+    return $missing;
+}
+
+
+// ---------------------------------------------------------------------
+// Get POST Input
+// Reads POST Parameters. Returns an associative Array.
+// Fallback to JSON Request Body if no POST Data is present.
+// ---------------------------------------------------------------------
+function get_input() {
+    // Checks for standard POST Requests
+    if (!empty($_POST)) {
+        return array_map('trim', $_POST);
+    }
+
+    // Fall back for JSON POST Requests
+    $json = file_get_contents('php://input');
+    $data = json_decode($json, true);
+
+    if (is_array($data)) {
+        return array_map('trim', $data);
+    }
+
+    return [];
+}
+
+
+// ---------------------------------------------------------------------
+// Get PDO Connection
+// Returns PDO Instance wrapped in a Function to prevent global 
+// Variable Dependencies in Endpoint Files.
+// ---------------------------------------------------------------------
+function get_db() {
+    global $pdo;
+
+    if (!$pdo) {
+        error_response('Database Connection failed.', 500);
+    }
+
+    return $pdo;
+}
+
+// ---------------------------------------------------------------------
+// Category Definitions
+// Returns associative Array of Category Keys to Labels, Icons,
+// and Colors. Shared between Citizen Participation Portal and
+// Moderation Page.
+// ToDo: Move to Database Table. 
+// ---------------------------------------------------------------------
+function get_categories() {
+    return [
+        'consumption' => ['label' => 'Geschäfte',   'faIcon' => 'fa-cart-shopping', 'color' => '#C00000'],
+        'building'    => ['label' => 'Bauen',       'faIcon' => 'fa-building',      'color' => '#E65100'],
+        'energy'      => ['label' => 'Energie',     'faIcon' => 'fa-bolt',          'color' => '#FFC000'],
+        'environment' => ['label' => 'Umwelt',      'faIcon' => 'fa-seedling',      'color' => '#92D050'],
+        'mobility'    => ['label' => 'Mobilität',   'faIcon' => 'fa-bus',           'color' => '#0070C0'],
+        'industry'    => ['label' => 'Industrie',   'faIcon' => 'fa-industry',      'color' => '#7030A0'],
+        'other'       => ['label' => 'Sonstiges',   'faIcon' => 'fa-thumbtack',     'color' => '#7F7F7F'],
+    ];
+}

public/api/init.php

@@ -0,0 +1,43 @@
+<?php
+// =====================================================================
+// Database Connection
+// =====================================================================
+
+
+// Reads Environment Configfile
+$envFile = __DIR__ . '/../../.env';
+if (file_exists($envFile)) {
+    $lines = file($envFile, FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES);
+    foreach ($lines as $line) {
+        if (strpos(trim($line), '#') === 0) continue;
+        list($key, $value) = array_map('trim', explode('=', $line, 2));
+        putenv("$key=$value");
+    }
+}
+
+// Defines Environment Variables
+$host = getenv('POSTGRES_HOSTNAME');
+$port = getenv('POSTGRES_PORT');
+$db   = getenv('POSTGRES_DB');
+$user = getenv('POSTGRES_USER');
+$pass = getenv('POSTGRES_PASSWORD');
+
+// Output Buffering and Session Start
+ob_start();
+session_start();
+
+// Initializes Database Connection
+try {
+    $dsn = "pgsql:host=$host;dbname=$db;port=$port";
+    $pdo = new PDO($dsn, $user, $pass, [
+        PDO::ATTR_ERRMODE            => PDO::ERRMODE_EXCEPTION,
+        PDO::ATTR_DEFAULT_FETCH_MODE => PDO::FETCH_ASSOC,
+        PDO::ATTR_EMULATE_PREPARES   => false
+    ]);
+
+// Creates Error Message
+} catch (PDOException $e) {
+    echo "Error: " . $e->getMessage();
+}
+
+?>

public/imprint.php

@@ -0,0 +1,39 @@
+<?php
+require_once __DIR__ . '/api/db.php';
+$pdo = get_db();
+$stmt = $pdo->prepare("SELECT * FROM municipalities WHERE slug = :slug");
+$stmt->execute([':slug' => getenv('MUNICIPALITY_SLUG')]);
+$municipality = $stmt->fetch();
+?>
+<!DOCTYPE html>
+<html lang="de">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>Impressum — <?= htmlspecialchars($municipality['name']) ?></title>
+    <link rel="icon" href="<?= htmlspecialchars($municipality['logo_path'] ?? 'assets/icon-municipality.png') ?>" type="image/png">
+    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.5.1/css/all.min.css">
+    <link rel="stylesheet" href="styles.css">
+    <style>:root { --color-primary: <?= htmlspecialchars($municipality['primary_color']) ?>; }</style>
+</head>
+<body>
+    <div class="page-header">
+        <div class="page-header-inner">
+            <h1><i class="fa-solid fa-scale-balanced"></i> Impressum</h1>
+            <div class="page-header-nav">
+                <a href="index.php"><i class="fa-solid fa-arrow-left"></i> Zurück zur Karte</a>
+            </div>
+        </div>
+    </div>
+    <div class="page-container">
+        <div class="page-content-box">
+            <div class="dev-notice">
+                <i class="fa-solid fa-triangle-exclamation"></i>
+                Dieses Portal befindet sich in der Entwicklung und wurde nicht offiziell beauftragt. Das Impressum wird mit der offiziellen Inbetriebnahme hier hinzugefügt.
+            </div>
+            <h2>Impressum</h2>
+            <p>Das Impressum wird hier hinzugefügt, sobald das Portal in den Produktivbetrieb geht.</p>
+        </div>
+    </div>
+</body>
+</html>

public/index.php

@@ -0,0 +1,394 @@
+<?php
+// =====================================================================
+// WebGIS Citizen Participation Portal — Main Page
+// Loads Municipality Configuration from the Database.
+// Renders Leaflet Map Interface including Leaflet Plugins
+// =====================================================================
+
+require_once __DIR__ . '/api/db.php';
+require_once __DIR__ . '/api/auth.php';
+
+// -----------------------------------------------------------------
+// Loads Municipality Configuration
+// ToDo's: Dynamic Loading via URL Slug once multi-tenant Routing
+// is implemented. Hardcoded Slug for now.
+// -----------------------------------------------------------------
+$pdo = get_db();
+$stmt = $pdo->prepare("SELECT * FROM municipalities WHERE slug = :slug");
+$stmt->execute([':slug' => getenv('MUNICIPALITY_SLUG')]);
+$municipality = $stmt->fetch();
+
+if (!$municipality) {
+    http_response_code(404);
+    echo "<!DOCTYPE html><html><body><h1>404 — Municipality not listed in Database.</h1></body></html>";
+    exit;
+}
+
+// Loads News for Sidebar
+$stmt = $pdo->prepare("SELECT * FROM news WHERE municipality_id = :mid ORDER BY published_at DESC LIMIT 10");
+$stmt->execute([':mid' => $municipality['municipality_id']]);
+$news_items = $stmt->fetchAll();
+
+?>
+<!DOCTYPE html>
+<html lang="de">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>Bürgerbeteiligungsportal <?= htmlspecialchars($municipality['name']) ?></title>
+    <link rel="icon" href="<?= htmlspecialchars($municipality['logo_path'] ?? 'assets/icon-municipality.png') ?>" type="image/png">
+    <meta name="description" content="Bürgerbeteiligungsportal. Hinweise und Vorschläge auf der Karte eintragen.">
+
+
+    <!-- ============================================================= -->
+    <!-- Loads CSS Dependencies                                        -->
+    <!-- ============================================================= -->
+
+    <!-- Leaflet -->
+    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/leaflet/1.9.4/leaflet.min.css">
+
+    <!-- Geoman Drawing Tools -->
+    <link rel="stylesheet" href="https://unpkg.com/@geoman-io/leaflet-geoman-free@2.17.0/dist/leaflet-geoman.css">
+
+    <!-- Leaflet Sidebar -->
+    <link rel="stylesheet" href="https://unpkg.com/leaflet-sidebar-v2@3.2.3/css/leaflet-sidebar.min.css">
+
+    <!-- Leaflet Fullscreen -->
+    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/leaflet.fullscreen/3.0.2/Control.FullScreen.css">
+
+    <!-- Leaflet Geocoder for Address Search -->
+    <link rel="stylesheet" href="https://unpkg.com/leaflet-control-geocoder@2.4.0/dist/Control.Geocoder.css">
+
+    <!-- Leaflet Polyline Measurement Tool -->
+    <!-- <link rel="stylesheet" href="https://ppete2.github.io/Leaflet.PolylineMeasure/Leaflet.PolylineMeasure.css"> -->
+
+    <!-- Font Awesome for Icons -->
+    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.5.1/css/all.min.css">
+
+    <!-- Application Styles -->
+    <link rel="stylesheet" href="styles.css">
+
+    <!-- ============================================================= -->
+    <!-- Municipality Theme loaded from Database                       -->
+    <!-- ============================================================= -->
+    <style>
+        :root {
+            --color-primary: <?= htmlspecialchars($municipality['primary_color']) ?>;
+            --color-primary-light: <?= htmlspecialchars($municipality['primary_color']) ?>22;
+        }
+    </style>
+</head>
+
+<body class="portal-page">
+
+    <!-- ============================================================= -->
+    <!-- Header                                                        -->
+    <!-- ============================================================= -->
+    <header id="app-header">
+        <div class="header-left">
+            <?php if (!empty($municipality['logo_path'])): ?>
+                <img src="<?= htmlspecialchars($municipality['logo_path']) ?>" alt="<?= htmlspecialchars($municipality['name']) ?>" class="header-logo" onerror="this.style.display='none'">
+            <?php endif; ?>
+            <h1 class="header-title">Mitmachkarte <?= htmlspecialchars($municipality['name']) ?></h1>
+        </div>
+
+        <nav class="header-nav">
+            <button class="nav-btn" onclick="showInfoModal()">
+                <i class="fa-solid fa-circle-info"></i>
+                <span class="nav-label">Informationen</span>
+            </button>
+            <a href="privacy.php" class="nav-btn" target="_blank">
+                <i class="fa-solid fa-shield-halved"></i>
+                <span class="nav-label">Datenschutz</span>
+            </a>
+            <a href="imprint.php" class="nav-btn" target="_blank">
+                <i class="fa-solid fa-scale-balanced"></i>
+                <span class="nav-label">Impressum</span>
+            </a>
+            <a href="admin.php" class="nav-btn nav-btn-admin" title="Moderationsbereich" target="_blank">
+                <i class="fa-solid fa-lock"></i>
+            </a>
+        </nav>
+
+        <!-- Mobile Hamburger Menu -->
+        <button class="header-menu-toggle" onclick="toggleMobileNav()">
+            <i class="fa-solid fa-bars"></i>
+        </button>
+    </header>
+
+
+    <!-- ============================================================= -->
+    <!-- Map Container with Sidebar                                    -->
+    <!-- ============================================================= -->
+    <main id="app-main">
+
+        <!-- Leaflet Sidebar -->
+        <div id="sidebar" class="leaflet-sidebar collapsed">
+
+            <!-- Sidebar Tab Icons -->
+            <div class="leaflet-sidebar-tabs">
+                <ul role="tablist">
+                    <li><a href="#tab-home" role="tab"><i class="fa-solid fa-house"></i></a></li>
+                    <li><a href="#tab-help" role="tab"><i class="fa-solid fa-circle-question"></i></a></li>
+                    <li><a href="#tab-list" role="tab"><i class="fa-solid fa-list"></i></a></li>
+                    <li><a href="#tab-news" role="tab"><i class="fa-solid fa-newspaper"></i></a></li>
+                </ul>
+            </div>
+
+            <!-- Sidebar Tab Content -->
+            <div class="leaflet-sidebar-content">
+
+                <!-- Home Tab -->
+                <div class="leaflet-sidebar-pane" id="tab-home">
+                    <h2 class="leaflet-sidebar-header">
+                        Start
+                        <span class="leaflet-sidebar-close"><i class="fa-solid fa-xmark"></i></span>
+                    </h2>
+                    <div class="sidebar-body">
+                        <p>Willkommen beim Bürgerbeteiligungsportal <strong><?= htmlspecialchars($municipality['name']) ?></strong>.</p>
+                        <p>Verwenden Sie die Karte, um Hinweise und Aufgaben für die Stadtverwaltung hinzuzufügen oder bestehende Beiträge der Bürgerschaft zu betrachten.</p>
+
+                        <h3>Kategorien</h3>
+                        <div id="category-filter">
+                            <!-- Category Filter Checkboxes — populated by app.js -->
+                        </div>
+
+                        <h3>Statistik</h3>
+                        <div id="stats-container">
+                            <!-- Contribution Statistics — populated by app.js -->
+                        </div>
+                    </div>
+                </div>
+
+                <!-- List Tab -->
+                <div class="leaflet-sidebar-pane" id="tab-list">
+                    <h2 class="leaflet-sidebar-header">
+                        Beiträge
+                        <span class="leaflet-sidebar-close"><i class="fa-solid fa-xmark"></i></span>
+                    </h2>
+                    <div class="sidebar-body">
+                        <div class="list-search">
+                            <input type="text" id="list-search-input" placeholder="Beiträge durchsuchen..." class="form-input">
+                        </div>
+                        <div id="contributions-list">
+                            <!-- Contribution Cards — populated by app.js -->
+                        </div>
+                    </div>
+                </div>
+
+                <!-- Help Tab -->
+                <div class="leaflet-sidebar-pane" id="tab-help">
+                    <h2 class="leaflet-sidebar-header">
+                        Hilfe
+                        <span class="leaflet-sidebar-close"><i class="fa-solid fa-xmark"></i></span>
+                    </h2>
+                    <div class="sidebar-body">
+                        <h3><i class="fa-solid fa-map-location-dot"></i> Karte bedienen</h3>
+                        <p>Verschieben Sie die Karte per Mausklick und Ziehen. Zoomen Sie mit dem Mausrad oder den Zoom-Buttons.</p>
+
+                        <h3><i class="fa-solid fa-plus"></i> Beitrag erstellen</h3>
+                        <p>Verwenden Sie die Zeichenwerkzeuge rechts, um Beiträge als Punkte, Linien oder Flächen zu zeichnen. Anschließend können Sie Kategorie und Beschreibung hinzufügen.</p>
+
+                        <h3><i class="fa-solid fa-thumbs-up"></i> Abstimmen</h3>
+                        <p>Klicken Sie auf bestehende Beiträge und nutzen Sie die Like/Dislike Funktion, um Ihre Meinung kundzugeben.</p>
+
+                        <h3><i class="fa-solid fa-magnifying-glass"></i> Suchen</h3>
+                        <p>Verwenden Sie die Adresssuche rechts, um bestimmte Orte auf der Karte zu finden.</p>
+                    </div>
+                </div>
+
+                <!-- News Tab -->
+                <div class="leaflet-sidebar-pane" id="tab-news">
+                    <h2 class="leaflet-sidebar-header">
+                        Neuigkeiten
+                        <span class="leaflet-sidebar-close"><i class="fa-solid fa-xmark"></i></span>
+                    </h2>
+                    <div class="sidebar-body">
+                        <!-- News Search -->
+                        <div class="list-search">
+                            <input type="text" id="news-search-input" placeholder="Neuigkeiten durchsuchen..." class="form-input" oninput="filterNews()">
+                        </div>
+
+                        <!-- News Items Container -->
+                        <div id="news-list">
+                            <?php if (empty($news_items)): ?>
+                                <p style="text-align:center;color:#999;padding:20px;">Noch keine Neuigkeiten veröffentlicht.</p>
+                            <?php else: ?>
+                                <?php foreach ($news_items as $news): ?>
+                                    <div class="news-item"
+                                         data-title="<?= htmlspecialchars(strtolower($news['title'])) ?>"
+                                         data-content="<?= htmlspecialchars(strtolower($news['content'])) ?>"
+                                         data-author="<?= htmlspecialchars(strtolower($news['author_name'])) ?>">
+                                        <h3><?= htmlspecialchars($news['title']) ?></h3>
+                                        <p><?= nl2br(htmlspecialchars($news['content'])) ?></p>
+                                        <span class="news-date">
+                                            <?= htmlspecialchars($news['author_name']) ?>
+                                            · <?= date('d.m.Y', strtotime($news['published_at'])) ?>
+                                        </span>
+                                    </div>
+                                <?php endforeach; ?>
+                            <?php endif; ?>
+                        </div>
+                    </div>
+                </div>
+
+            </div>
+        </div>
+
+        <!-- Leaflet Map -->
+        <div id="map"></div>
+
+    </main>
+
+
+    <!-- ============================================================= -->
+    <!-- Footer                                                        -->
+    <!-- ============================================================= -->
+    <footer id="app-footer">
+        <span class="dev-warning">
+            <i class="fa-solid fa-triangle-exclamation"></i> Pilotprojekt - nicht offiziell von der Stadt Lohne (Oldenburg) beauftragt
+        </span>
+        <div class="footer-content">
+            <span class="footer-text">© <a href="https://endex-geodaten.de" target="_blank" style="color:inherit;">endex GmbH</a></span>
+        </div>
+    </footer>
+
+
+    <!-- ============================================================= -->
+    <!-- Welcome Modal shown on first Visit                            -->
+    <!-- ============================================================= -->
+    <div id="welcome-modal" class="modal-overlay" style="display:none;">
+        <div class="modal-content">
+            <h2><i class="fa-solid fa-hand-wave"></i> Willkommen!</h2>
+            <p>Herzlich willkommen beim Bürgerbeteiligungsportal <strong><?= htmlspecialchars($municipality['name']) ?></strong>.</p>
+            <p>Hier können Sie:</p>
+            <ul>
+                <li>Hinweise und Verbesserungsvorschläge für die Stadtverwaltung hinzufügen</li>
+                <li>Bestehende Beiträge der Bürgerschaft betrachten und bewerten</li>
+            </ul>
+            <p style="background:#fff3cd;padding:10px;border-radius:6px;border:1px solid #ffc107;font-size:0.85rem;color:#856404;">
+                <i class="fa-solid fa-triangle-exclamation"></i> <strong>Hinweis:</strong> Dieses Bürgerbeteiligungsportal befindet sich noch in der Entwicklung und wurde nicht offiziell beauftragt.
+            </p>
+            <p>Zum Hinzufügen von Beiträgen geben Sie bitte zunächst Ihren Namen ein.</p>            <div class="modal-actions">
+                <button class="btn btn-primary" onclick="closeWelcomeAndShowLogin()">Loslegen</button>
+            </div>
+        </div>
+    </div>
+
+
+    <!-- ============================================================= -->
+    <!-- Login Modal for Identification                                -->
+    <!-- ToDo's: User Authentification and Administration              -->
+    <!-- ============================================================= -->
+    <div id="login-modal" class="modal-overlay" style="display:none;">
+        <div class="modal-content modal-small">
+            <h2><i class="fa-solid fa-user"></i> Anmelden</h2>
+            <p>Bitte geben Sie Ihren Namen ein, um Beiträge hinzufügen und abstimmen zu können.</p>
+            <div class="form-group">
+                <label for="user-name-input">Ihr Name</label>
+                <input type="text" id="user-name-input" class="form-input" placeholder="Vor- und Nachname">
+            </div>
+            <div class="modal-actions">
+                <button class="btn btn-secondary" onclick="skipLogin()">Gastuser</button>
+                <button class="btn btn-primary" onclick="submitLogin()">Anmelden</button>
+            </div>
+        </div>
+    </div>
+
+
+    <!-- ============================================================= -->
+    <!-- Create Contribution Modal                                     -->
+    <!-- ============================================================= -->
+    <div id="create-modal" class="modal-overlay" style="display:none;">
+        <div class="modal-content">
+            <h2><i class="fa-solid fa-plus-circle"></i> Beitrag</h2>
+ 
+            <div class="form-group">
+                <label for="create-category">Kategorie</label>
+                <select id="create-category" class="form-input">
+                    <option value="">— Bitte wählen —</option>
+                    <!-- Categories populated dynamically -->
+                </select>
+            </div>
+
+            <div class="form-group">
+                <label for="create-title">Titel</label>
+                <input type="text" id="create-title" class="form-input" placeholder="Kurze Beschreibung des Anliegens">
+            </div>
+
+            <div class="form-group">
+                <label for="create-description">Beschreibung</label>
+                <textarea id="create-description" class="form-input" rows="4" placeholder="Detaillierte Beschreibung (optional)"></textarea>
+            </div>
+
+            <!-- Photo Upload -->
+            <div class="form-group">
+                <label for="create-photo"></i> Foto</label>
+                <input type="file" id="create-photo" class="form-input" accept="image/jpeg,image/png,image/gif,image/webp">
+                <div id="photo-preview" style="margin-top:8px;display:none;">
+                    <img id="photo-preview-img" style="max-width:100%;max-height:200px;border-radius:6px;border:1px solid var(--color-border);">
+                </div>
+            </div>
+
+            <input type="hidden" id="create-geom">
+            <input type="hidden" id="create-geom-type">
+
+            <div class="modal-actions">
+                <button class="btn btn-secondary" onclick="cancelCreate()">Abbrechen</button>
+                <button class="btn btn-primary" onclick="submitCreate()">Beitrag einreichen</button>
+            </div>
+        </div>
+    </div>
+
+
+    <!-- ============================================================= -->
+    <!-- Loads JavaScript Dependencies                                       -->
+    <!-- ============================================================= -->
+
+    <!-- Leaflet 1.9.4 -->
+    <script src="https://cdnjs.cloudflare.com/ajax/libs/leaflet/1.9.4/leaflet.min.js"></script>
+
+    <!-- Geoman Drawing Tools -->
+    <script src="https://unpkg.com/@geoman-io/leaflet-geoman-free@2.17.0/dist/leaflet-geoman.min.js"></script>
+
+    <!-- Leaflet Sidebar v2 -->
+    <script src="https://unpkg.com/leaflet-sidebar-v2@3.2.3/js/leaflet-sidebar.min.js"></script>
+
+    <!-- Leaflet Fullscreen -->
+    <script src="https://cdnjs.cloudflare.com/ajax/libs/leaflet.fullscreen/3.0.2/Control.FullScreen.min.js"></script>
+
+    <!-- Leaflet Geocoder (Address Search) -->
+    <script src="https://unpkg.com/leaflet-control-geocoder@2.4.0/dist/Control.Geocoder.min.js"></script>
+
+    <!-- Leaflet PolylineMeasure -->
+    <!-- <script src="https://ppete2.github.io/Leaflet.PolylineMeasure/Leaflet.PolylineMeasure.js"></script> -->
+
+    <!-- SweetAlert2 -->
+    <script src="https://cdn.jsdelivr.net/npm/sweetalert2@11.14.0/dist/sweetalert2.all.min.js"></script>
+
+    <!-- ============================================================= -->
+    <!-- Municipality Configuration passed to JavaScript               -->
+    <!-- ============================================================= -->
+    <script>
+        // Municipality Configuration from Database — used by app.js
+        const MUNICIPALITY = {
+            id: <?= $municipality['municipality_id'] ?>,
+            name: "<?= htmlspecialchars($municipality['name'], ENT_QUOTES) ?>",
+            slug: "<?= htmlspecialchars($municipality['slug'], ENT_QUOTES) ?>",
+            center: [<?= $municipality['center_lat'] ?>, <?= $municipality['center_lng'] ?>],
+            zoom: <?= $municipality['default_zoom'] ?>,
+            primaryColor: "<?= htmlspecialchars($municipality['primary_color'], ENT_QUOTES) ?>"
+        };
+
+        // Category Definitions from Database
+        const CATEGORIES = <?= json_encode(get_categories(), JSON_UNESCAPED_UNICODE) ?>;
+
+        // Admin Status from PHP Session
+        const IS_ADMIN = <?= (function_exists('is_admin') && is_admin()) ? 'true' : 'false' ?>;
+    </script>
+
+    <!-- Application Logic -->
+    <script src="js/app.js"></script>
+
+</body>
+</html>

public/privacy.php

@@ -0,0 +1,39 @@
+<?php
+require_once __DIR__ . '/api/db.php';
+$pdo = get_db();
+$stmt = $pdo->prepare("SELECT * FROM municipalities WHERE slug = :slug");
+$stmt->execute([':slug' => getenv('MUNICIPALITY_SLUG')]);
+$municipality = $stmt->fetch();
+?>
+<!DOCTYPE html>
+<html lang="de">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>Datenschutz — <?= htmlspecialchars($municipality['name']) ?></title>
+    <link rel="icon" href="<?= htmlspecialchars($municipality['logo_path'] ?? 'assets/icon-municipality.png') ?>" type="image/png">
+    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.5.1/css/all.min.css">
+    <link rel="stylesheet" href="styles.css">
+    <style>:root { --color-primary: <?= htmlspecialchars($municipality['primary_color']) ?>; }</style>
+</head>
+<body>
+    <div class="page-header">
+        <div class="page-header-inner">
+            <h1><i class="fa-solid fa-lock"></i> Datenschutz</h1>
+            <div class="page-header-nav">
+                <a href="index.php"><i class="fa-solid fa-arrow-left"></i> Zurück zur Karte</a>
+            </div>
+        </div>
+    </div>
+    <div class="page-container">
+        <div class="page-content-box">
+            <div class="dev-notice">
+                <i class="fa-solid fa-triangle-exclamation"></i>
+                Dieses Portal befindet sich in der Entwicklung und wurde nicht offiziell beauftragt. Die Datenschutzerklärung wird mit der offiziellen Inbetriebnahme hier hinzugefügt.
+            </div>
+            <h2>Datenschutz</h2>
+            <p>Die Datenschutzerklärung wird hier hinzugefügt, sobald das Portal in den Produktivbetrieb geht.</p>
+        </div>
+    </div>
+</body>
+</html>

public/uploads/.htaccess

@@ -0,0 +1,7 @@
+# Prevents PHP in Upload Directory
+php_flag engine off
+
+# Allows Image Files
+<FilesMatch "\.(?i:jpg|jpeg|png|gif|webp)$">
+    Require all granted
+</FilesMatch>

readme.md

@@ -1 +0,0 @@
-obst

scripts/backup.sh

@@ -0,0 +1,129 @@
+#!/usr/bin/env bash
+# =====================================================================
+# WebGIS Database Backup Script
+# Location: /opt/webgis-lohne/scripts/backup.sh (on Server)
+# Purpose:  Creates compressed pg_dump Backups with daily/weekly/monthly
+#           Rotation. Intended to be run via Cron.
+# =====================================================================
+
+
+# Safety Switches
+set -euo pipefail
+
+# Logs Error Messages
+trap 'echo "[$(date)] ERROR: Script failed at Line ${LINENO} with Exit Code $?."' ERR
+
+
+# ---------------------------------------------------------------------
+# Configuration
+# ---------------------------------------------------------------------
+DB_HOST="localhost"
+DB_PORT="5432"
+DB_NAME="webgis-db"
+DB_USER="webgis-db-admin"
+
+
+BACKUP_ROOT="/var/backups/webgis"
+BACKUP_DIR_DAILY="${BACKUP_ROOT}/daily"
+BACKUP_DIR_WEEKLY="${BACKUP_ROOT}/weekly"
+BACKUP_DIR_MONTHLY="${BACKUP_ROOT}/monthly"
+
+# Retention Periods in Days
+KEEP_DAILY=7
+KEEP_WEEKLY=28
+KEEP_MONTHLY=365
+
+# Minimum acceptable Backup File Size in Bytes
+# Valid Dumps of even empty Databases are several KBs
+MIN_BACKUP_SIZE=10000
+
+# Password is read from  protected File
+# pg_dump honors the PGPASSFILE Environment Variable.
+export PGPASSFILE="/root/.pgpass_webgis"
+
+
+# ---------------------------------------------------------------------
+# Preflight Checks
+# ---------------------------------------------------------------------
+
+# Check pg_dump Availability
+if ! command -v pg_dump &> /dev/null; then
+    echo "[$(date)] ERROR: pg_dump not found. Install postgresql-client."
+    exit 1
+fi
+
+# Check Password File Existence and Permissions
+if [[ ! -f "${PGPASSFILE}" ]]; then
+    echo "[$(date)] ERROR: Password File ${PGPASSFILE} not found."
+    exit 1
+fi
+
+PGPASS_PERMS=$(stat -c "%a" "${PGPASSFILE}")
+if [[ "${PGPASS_PERMS}" != "600" ]]; then
+    echo "[$(date)] ERROR: ${PGPASSFILE} has Permissions ${PGPASS_PERMS}, expected 600."
+    exit 1
+fi
+
+
+# ---------------------------------------------------------------------
+# Preparation
+# ---------------------------------------------------------------------
+TIMESTAMP=$(date +"%Y-%m-%d_%H-%M-%S")
+DAY_OF_WEEK=$(date +"%u")      # 1=Monday ... 7=Sunday
+DAY_OF_MONTH=$(date +"%d")
+
+mkdir -p "${BACKUP_DIR_DAILY}" "${BACKUP_DIR_WEEKLY}" "${BACKUP_DIR_MONTHLY}"
+
+
+# ---------------------------------------------------------------------
+# Create Daily Backup in compressed Custom Format
+# ---------------------------------------------------------------------
+DAILY_FILE="${BACKUP_DIR_DAILY}/webgis_${TIMESTAMP}.dump"
+
+echo "[$(date)] Starting daily Backup -> ${DAILY_FILE}"
+
+pg_dump \
+    --host="${DB_HOST}" \
+    --port="${DB_PORT}" \
+    --username="${DB_USER}" \
+    --format=custom \
+    --compress=9 \
+    --file="${DAILY_FILE}" \
+    "${DB_NAME}"
+
+# Verify Backup File Size
+BACKUP_SIZE=$(stat -c "%s" "${DAILY_FILE}")
+if [[ "${BACKUP_SIZE}" -lt "${MIN_BACKUP_SIZE}" ]]; then
+    echo "[$(date)] ERROR: Backup File is only ${BACKUP_SIZE} Bytes (Minimum: ${MIN_BACKUP_SIZE}). Dump probably corrupt."
+    exit 1
+fi
+
+echo "[$(date)] Daily Backup complete (${BACKUP_SIZE} Bytes)."
+
+
+# ---------------------------------------------------------------------
+# Promote to Weekly Backup on Sundays
+# ---------------------------------------------------------------------
+if [[ "${DAY_OF_WEEK}" == "7" ]]; then
+    cp "${DAILY_FILE}" "${BACKUP_DIR_WEEKLY}/webgis_${TIMESTAMP}.dump"
+    echo "[$(date)] Promoted to weekly Backup."
+fi
+
+
+# ---------------------------------------------------------------------
+# Promote to Monthly Backup on the First of the Month
+# ---------------------------------------------------------------------
+if [[ "${DAY_OF_MONTH}" == "01" ]]; then
+    cp "${DAILY_FILE}" "${BACKUP_DIR_MONTHLY}/webgis_${TIMESTAMP}.dump"
+    echo "[$(date)] Promoted to monthly Backup."
+fi
+
+
+# ---------------------------------------------------------------------
+# Rotation: Delete Backups older than Retention Period
+# ---------------------------------------------------------------------
+find "${BACKUP_DIR_DAILY}"   -name "*.dump" -mtime +${KEEP_DAILY}   -delete
+find "${BACKUP_DIR_WEEKLY}"  -name "*.dump" -mtime +${KEEP_WEEKLY}  -delete
+find "${BACKUP_DIR_MONTHLY}" -name "*.dump" -mtime +${KEEP_MONTHLY} -delete
+
+echo "[$(date)] Backup Rotation complete."

README.md

@@ -0,0 +1,21 @@
+# WebGIS Citizen Participation Portal
+
+Citizen Participation Portal for Lohne (Oldenburg).
+
+## Project Structure
+
+- `migrations/` — versioned SQL Schema Migrations
+- `api/` — Backend (PHP)
+- `public/` — Frontend (HTML, CSS, JS)
+- `scripts/` — Maintenance Scripts (backup, deployment)
+- `legacy/` — Reference Code from Prototype
+
+## Local Setup
+
+1. Copy `.env.example` to `.env` and fill in Database Credentials.
+2. Run the SQL Migration in pgAdmin and execute in the target database.
+3. Serve `public/` with a PHP-capable Web Server.
+
+## SSH tunnel to database server
+
+1. Create SSH Tunnel to Database Server.