Fix Werkzeug production error and auto-init SQLite database

[seeyoui-2024]

Fixes

1. Fix Werkzeug production error

   • Add allow_unsafe_werkzeug=True to socketio.run()
   • Resolves RuntimeError: The Werkzeug web server is not designed to run in production when running in Docker

2. Auto-initialize database

   • Automatically create SQLite database and table on application startup
   • Execute CREATE TABLE IF NOT EXISTS sensor_data if table does not exist
   • Prevents API errors on first deployment due to missing database

Changed Files

• restapi.py:

  • Add import os

  • Add init_db() function for automatic database initialization

• Dockerfile:
  • Add allow_unsafe_werkzeug=True to socketio.run()

Testing

• Docker build succeeds
• Container starts without Werkzeug error
• Database and table auto-created on first startup
• Data read/write operations work correctly