Fix: Chargement automatique SQLite/PostgreSQL

CORRECTIF URGENT: L'application chargeait toujours SQLite même avec
PostgreSQL configuré, causant une perte apparente de toutes les données.

Ajout de database-loader.js qui détecte automatiquement:
- DB_TYPE=postgres → PostgreSQL
- DATABASE_URL=postgresql:// → PostgreSQL
- Sinon → SQLite

Tous les routes et services mis à jour pour utiliser database-loader
au lieu de charger directement database.js.

Les données ne sont PAS perdues, elles sont dans PostgreSQL.
L'application se reconnectera correctement après redémarrage.

Fichiers modifiés:
- config/database-loader.js (nouveau)
- server.js
- routes/*.js (11 fichiers)
- services/*.js (2 fichiers)

routes/auth.routes.js

@@ -4,7 +4,7 @@ const router = express.Router();
 const bcrypt = require('bcrypt');
 const { body, validationResult } = require('express-validator');
 
-const { getOne } = require('../config/database');
+const { getOne } = require('../config/database-loader');
 const { generateToken, authenticateToken } = require('../middleware/auth');
 const logger = require('../config/logger');
 

routes/calendar.routes.js

@@ -2,7 +2,7 @@
 const express = require('express');
 const router = express.Router();
 const { google } = require('googleapis');
-const { getAll, getOne, runQuery } = require('../config/database');
+const { getAll, getOne, runQuery } = require('../config/database-loader');
 const { authenticateToken, requireAdmin } = require('../middleware/auth');
 const logger = require('../config/logger');
 

routes/notes.routes.js

@@ -6,7 +6,7 @@ const path = require('path');
 const fs = require('fs');
 const { body, validationResult } = require('express-validator');
 
-const { getAll, getOne, runQuery } = require('../config/database');
+const { getAll, getOne, runQuery } = require('../config/database-loader');
 const { authenticateToken } = require('../middleware/auth');
 const logger = require('../config/logger');
 

routes/openrouter.routes.js

@@ -2,7 +2,7 @@
 const express = require('express');
 const router = express.Router();
 const { authenticateToken, requireAdmin } = require('../middleware/auth');
-const { getOne } = require('../config/database');
+const { getOne } = require('../config/database-loader');
 const logger = require('../config/logger');
 
 // Cache pour les modèles (rafraîchi toutes les heures)

routes/rss.routes-v2.js

@@ -3,7 +3,7 @@ const express = require('express');
 const router = express.Router();
 const Parser = require('rss-parser');
 const axios = require('axios');
-const { getAll, getOne, runQuery } = require('../config/database');
+const { getAll, getOne, runQuery } = require('../config/database-loader');
 const { authenticateToken, requireAdmin } = require('../middleware/auth');
 const logger = require('../config/logger');
 

routes/rss.routes.js

@@ -3,7 +3,7 @@ const express = require('express');
 const router = express.Router();
 const Parser = require('rss-parser');
 const axios = require('axios');
-const { getAll, getOne, runQuery } = require('../config/database');
+const { getAll, getOne, runQuery } = require('../config/database-loader');
 const { authenticateToken, requireAdmin } = require('../middleware/auth');
 const logger = require('../config/logger');
 

routes/settings.routes.js

@@ -1,7 +1,7 @@
 // Routes de gestion des paramètres
 const express = require('express');
 const router = express.Router();
-const { getAll, getOne, runQuery } = require('../config/database');
+const { getAll, getOne, runQuery } = require('../config/database-loader');
 const { authenticateToken, requireAdmin } = require('../middleware/auth');
 const logger = require('../config/logger');
 

routes/todos.routes.js

@@ -3,7 +3,7 @@ const express = require('express');
 const router = express.Router();
 const { body, validationResult } = require('express-validator');
 
-const { getAll, getOne, runQuery } = require('../config/database');
+const { getAll, getOne, runQuery } = require('../config/database-loader');
 const { authenticateToken } = require('../middleware/auth');
 const logger = require('../config/logger');
 

routes/users.routes.js

@@ -4,7 +4,7 @@ const router = express.Router();
 const bcrypt = require('bcrypt');
 const { body, validationResult } = require('express-validator');
 
-const { getAll, getOne, runQuery } = require('../config/database');
+const { getAll, getOne, runQuery } = require('../config/database-loader');
 const { authenticateToken, requireAdmin } = require('../middleware/auth');
 const logger = require('../config/logger');