fix: startup script compatibility for standard sh

start.sh

@@ -8,8 +8,8 @@ pnpm --filter @repo/database db:push || echo "[DB] db:push failed, continuing an
 
 # 2. Start API Server
 echo "[API] Starting API Gateway on port ${PORT:-8080}..."
-# Using direct path to avoid pnpm overhead and potential filter issues
-npx tsx apps/api/src/index.ts &
+# Using pnpm start is more reliable to find local binaries like tsx
+pnpm --filter api start &
 API_PID=$!
 
 # 3. Wait a bit for API to initialize
@@ -17,13 +17,14 @@ sleep 5
 
 # 4. Start WhatsApp Worker
 echo "[WORKER] Starting WhatsApp Worker on internal port 8081..."
-npx tsx apps/whatsapp-worker/src/index.ts &
+pnpm --filter whatsapp-worker start &
 WORKER_PID=$!
 
 echo "[SYSTEM] Both services are starting. Monitoring processes..."
 
-# 5. Wait and handle exits
-wait -n $API_PID $WORKER_PID
+# 5. Wait for both processes
+# Note: wait without -n is more compatible with standard 'sh'
+wait $API_PID $WORKER_PID
 
 echo "[SYSTEM] One of the services exited. Shutting down..."
 kill $API_PID $WORKER_PID 2>/dev/null