refactor: Enhance environment configuration and loading mechanism

- Implement flexible environment variable loading strategy
- Add support for environment-specific and local override configuration files
- Create new `loadEnv.ts` module for dynamic environment configuration
- Update configuration loading in multiple config files
- Remove deprecated `.env.development.template`
- Add setup script for environment validation
- Improve WebSocket error handling and client configuration

.env.example

@@ -4,7 +4,7 @@ HASS_HOST=http://homeassistant.local:8123
 
 # Long-lived access token from Home Assistant
 # Generate from Profile -> Long-Lived Access Tokens
-HASS_TOKEN=your_home_assistant_token
+HASS_TOKEN=your_long_lived_token
 
 # WebSocket URL for real-time updates
 HASS_SOCKET_URL=ws://homeassistant.local:8123/api/websocket
@@ -105,7 +105,10 @@ TEST_PORT=3001
 
 # Speech Features Configuration
 ENABLE_SPEECH_FEATURES=false
-ENABLE_WAKE_WORD=true
-ENABLE_SPEECH_TO_TEXT=true
+ENABLE_WAKE_WORD=false
+ENABLE_SPEECH_TO_TEXT=false
 WHISPER_MODEL_PATH=/models
-WHISPER_MODEL_TYPE=base
+WHISPER_MODEL_TYPE=tiny
+
+# Advanced (Docker)
+COMPOSE_PROJECT_NAME=mcp