chore: Update environment configuration and Dockerfile for improved setup

- Change default PORT in .env.example to 7123 and update CORS origins
- Disable speech features in .env.example for a cleaner setup
- Modify Dockerfile to streamline Python dependency installation and improve build performance
- Add fix-env.js script to ensure NODE_ENV is set correctly before application starts
- Update smithery.yaml to include new Home Assistant connection parameters
- Introduce start.sh script to set NODE_ENV and start the application

extra/ha-analyzer-cli.ts

@@ -23,7 +23,7 @@ if (!hassToken) {
 }
 
 // MCP Server configuration
-const MCP_SERVER = process.env.MCP_SERVER || 'http://localhost:3000';
+const MCP_SERVER = 'http://localhost:3000';
 
 interface McpTool {
     name: string;