Change server listening port to 80 for production deployment

server.js

@@ -158,7 +158,7 @@ app.get('/api/poi', async (req, res) => {
       SELECT 
         id, 
         ST_AsGeoJSON(ST_Transform(geom, 4326)) as geometry
-      FROM "netzverknüpfungspunkt"
+      FROM netzverknüpfungspunkt
     `;
     const result = await client.query(query);
     const geojson = {
@@ -258,7 +258,7 @@ app.post('/api/variants', async (req, res) => {
     const routeName = properties.name || 'Neue Trasse';
     const varianteValue = properties.Variante || (properties.name ? properties.name.replace('Variante ', '') : 'A');
     const geoJsonStr = JSON.stringify(geometry);
-    
+
     // Safety Check: DON'T delete/save if geometry is empty or invalid
     if (!geometry || !geometry.coordinates || geometry.coordinates.length < 2) {
       console.log(`Aborting save for ${varianteValue}: Geometry is too short or empty.`);
@@ -267,7 +267,7 @@ app.post('/api/variants', async (req, res) => {
 
     try {
       await client.query('BEGIN');
-      
+
       // Delete existing variant if it exists
       await client.query('DELETE FROM kabeltrasse WHERE "Variante" = $1 OR name = $2', [varianteValue, routeName]);
 
@@ -280,10 +280,10 @@ app.post('/api/variants', async (req, res) => {
         )
         RETURNING id
       `;
-      
+
       const insertRes = await client.query(insertQuery, [geoJsonStr, routeName, varianteValue]);
       await client.query('COMMIT');
-      
+
       res.json({ success: true, id: insertRes.rows[0].id });
     } catch (sqlErr) {
       await client.query('ROLLBACK');
@@ -320,6 +320,7 @@ app.patch('/api/owners/:id', async (req, res) => {
   }
 });
 
-app.listen(3000, () => {
-  console.log(`Server running at http://localhost:3000`);
+const PORT = process.env.PORT || 80;
+app.listen(PORT, '0.0.0.0', () => {
+  console.log(`Server running on port ${PORT}`);
 });