fix: move /api/health before auth middleware so Docker healthcheck returns 200

backend/src/index.ts

@@ -31,6 +31,11 @@ app.use(express.urlencoded({ extended: true, limit: '50mb' }))
 app.use('/uploads', express.static(UPLOADS_DIR))
 
 // ─── Routes API ───────────────────────────────────────────────────────────────
+// IMPORTANT: health check MUST be before authenticated routers
+app.get('/api/health', (_req, res) => {
+  res.json({ status: 'ok', service: 'shoottracker', ts: new Date().toISOString() })
+})
+
 app.use('/api/auth',    authRouter)
 app.use('/api/weapons', weaponsRouter)
 app.use('/api',         sessionsRouter)
@@ -39,10 +44,6 @@ app.use('/api',         miscRouter)
 app.use('/api',         analyzeRouter)
 app.use('/api/export',  exportRouter)
 
-app.get('/api/health', (_req, res) => {
-  res.json({ status: 'ok', service: 'shoottracker', ts: new Date().toISOString() })
-})
-
 // ─── Serve Frontend (production) ─────────────────────────────────────────────
 const publicDir = path.join(__dirname, '..', 'public')
 if (fs.existsSync(publicDir)) {
@@ -54,5 +55,4 @@ if (fs.existsSync(publicDir)) {
 app.listen(PORT, () => {
   console.log(`✓ ShootTracker backend → http://localhost:${PORT}`)
   console.log(`  Uploads : ${UPLOADS_DIR}`)
-  console.log(`  AI      : ${process.env.AI_SERVICE_URL || 'http://localhost:8000'}`)
-})
+  console.log(`  AI