Initial commit : API Node.js + PostgreSQL + sync service Docker

- API Express/pg connectée à PostgreSQL (converti depuis mssql)
- 8 routes : articles, fournisseurs, commandes, stock, mouvements, performance, schema, sync
- Service sync nightly (mssql → pg, cron 3h00)
- Docker Compose : postgres + api + sync + frpc (tunnel sortant)
- Schéma PostgreSQL 17 tables dans postgres/init.sql

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/app.js

@@ -0,0 +1,74 @@
+require('dotenv').config();
+const express = require('express');
+const { getPool } = require('./config/database');
+
+const schemaRouter      = require('./routes/schema');
+const articlesRouter    = require('./routes/articles');
+const fournisseursRouter = require('./routes/fournisseurs');
+const commandesRouter   = require('./routes/commandes');
+const stockRouter       = require('./routes/stock');
+const mouvementsRouter  = require('./routes/mouvements');
+const performanceRouter = require('./routes/performance');
+const syncRouter        = require('./routes/sync');
+
+const app = express();
+app.use(express.json());
+
+// Health check
+app.get('/api/health', async (req, res) => {
+  try {
+    const pool = getPool();
+    await pool.query('SELECT 1 AS ok');
+    res.json({ status: 'ok', database: process.env.PG_DB, server: process.env.PG_HOST });
+  } catch (err) {
+    res.status(500).json({ status: 'error', detail: err.message });
+  }
+});
+
+// Routes
+app.use('/api/schema',       schemaRouter);
+app.use('/api/articles',     articlesRouter);
+app.use('/api/fournisseurs', fournisseursRouter);
+app.use('/api/commandes',    commandesRouter);
+app.use('/api/stock',        stockRouter);
+app.use('/api/mouvements',   mouvementsRouter);
+app.use('/api/performance',  performanceRouter);
+app.use('/api/sync',         syncRouter);
+
+// 404
+app.use((req, res) => {
+  res.status(404).json({ error: 'Route introuvable' });
+});
+
+const PORT = process.env.API_PORT || 3000;
+app.listen(PORT, () => {
+  console.log(`\nAPI Foirfouille démarrée sur http://localhost:${PORT}`);
+  console.log(`Base : ${process.env.PG_HOST}/${process.env.PG_DB} (PostgreSQL)\n`);
+  console.log('Endpoints disponibles :');
+  console.log('  GET /api/health');
+  console.log('  GET /api/schema/tables[?search=]');
+  console.log('  GET /api/schema/top[?limit=]');
+  console.log('  GET /api/schema/tables/:nom');
+  console.log('  GET /api/articles[?search=&codein=&ean=&codefou=&actif=&page=&limit=]');
+  console.log('  GET /api/articles/:id');
+  console.log('  GET /api/articles/:id/referentiel');
+  console.log('  GET /api/articles/:id/mouvements');
+  console.log('  GET /api/fournisseurs[?search=]');
+  console.log('  GET /api/fournisseurs/:code/articles');
+  console.log('  GET /api/fournisseurs/:code/commandes');
+  console.log('  GET /api/commandes[?dateDebut=&dateFin=&codefou=]');
+  console.log('  GET /api/commandes/:noCommande');
+  console.log('  GET /api/commandes/receptions/liste');
+  console.log('  GET /api/stock[?site=]');
+  console.log('  GET /api/stock/article/:id');
+  console.log('  GET /api/stock/site/:site');
+  console.log('  GET /api/stock/valorisation');
+  console.log('  GET /api/mouvements/articles[?dateDebut=&dateFin=&site=]');
+  console.log('  GET /api/mouvements/reglements[?dateDebut=&dateFin=]');
+  console.log('  GET /api/mouvements/synthese[?dateDebut=&dateFin=&site=]');
+  console.log('  GET /api/performance/ca[?dateDebut=&dateFin=&site=&groupBy=jour|mois]');
+  console.log('  GET /api/performance/hitparade[?dateDebut=&dateFin=&site=&limit=&groupBy=qte|ca|marge]');
+  console.log('  GET /api/performance/ca/nomenclature[?dateDebut=&dateFin=&site=&niveau=]');
+  console.log('  GET /api/performance/ca/gamme[?dateDebut=&dateFin=&site=]');
+  console.log('  GET /api/sync/status');
+});