fix(prod): production startup fixes — health endpoint, serveStatic path, entrypoint, docker config

- Add /api/health endpoint for Docker healthchecks
- Fix serveStatic path: dist/public instead of ../public
- Fix entrypoint.sh: DB wait check, npx drizzle-kit migrate, add netcat
- Fix Dockerfile: add bash/netcat, fix COPY order, add tsconfig.node.json
- Fix docker-compose.yml: add OLLAMA/LLM env vars for Node.js fallback
- Fix docker-stack.yml: remove template vars, use env vars instead of secrets
- Fix drizzle.config.ts: add migrations prefix
- Update .env.example with full LLM provider documentation

docker/entrypoint.sh

@@ -1,18 +1,48 @@
 #!/bin/sh
 # GoClaw Control Center entrypoint
-# Runs Drizzle migrations before starting the server
+# Runs database migrations before starting the server
 
 set -e
 
-echo "[Entrypoint] Running database migrations..."
+echo "[Entrypoint] Waiting for database connectivity..."
+
+# Wait for database to be reachable (max 30 attempts = 60 seconds)
+DB_READY=false
+ATTEMPT=0
+MAX_ATTEMPTS=30
+
+# Parse DATABASE_URL for connection check
+# Supports: mysql://user:pass@host:port/dbname
+if [ -n "$DATABASE_URL" ]; then
+  # Extract host and port from DATABASE_URL
+  DB_HOST=$(echo "$DATABASE_URL" | sed -E 's|.*@([^:/]+)(:[0-9]+)?/.*|\1|')
+  DB_PORT=$(echo "$DATABASE_URL" | sed -E 's|.*@[^:/]+:([0-9]+)/.*|\1|')
+  if [ -z "$DB_PORT" ]; then DB_PORT=3306; fi
+  
+  while [ $ATTEMPT -lt $MAX_ATTEMPTS ]; do
+    ATTEMPT=$((ATTEMPT + 1))
+    if nc -z "$DB_HOST" "$DB_PORT" 2>/dev/null || timeout 2 sh -c "echo > /dev/tcp/$DB_HOST/$DB_PORT" 2>/dev/null; then
+      DB_READY=true
+      echo "[Entrypoint] Database is reachable (attempt $ATTEMPT/$MAX_ATTEMPTS)"
+      break
+    fi
+    echo "[Entrypoint] Waiting for database at $DB_HOST:$DB_PORT... (attempt $ATTEMPT/$MAX_ATTEMPTS)"
+    sleep 2
+  done
+fi
+
+if [ "$DB_READY" = "false" ] && [ -n "$DATABASE_URL" ]; then
+  echo "[Entrypoint] WARNING: Database not reachable after $MAX_ATTEMPTS attempts. Continuing anyway..."
+fi
+
+echo "[Entrypoint] Running database migrations (via drizzle-kit)..."
 
 # Run drizzle-kit migrate — applies all pending migrations idempotently
-# drizzle.config.ts and drizzle/migrations/ are copied into /app during build
-cd /app && node_modules/.bin/drizzle-kit migrate 2>&1
+cd /app && npx drizzle-kit migrate 2>&1
 
 MIGRATE_EXIT=$?
 if [ $MIGRATE_EXIT -ne 0 ]; then
-  echo "[Entrypoint] WARNING: Migration failed (exit $MIGRATE_EXIT). Starting server anyway..."
+  echo "[Entrypoint] WARNING: Migration failed (exit $MIGRATE_EXIT). Starting server anyway — seed will handle schema..."
 else
   echo "[Entrypoint] Migrations applied successfully."
 fi