Enhance camera configuration and auto-recording functionality

- Updated CameraStreamer to configure streaming settings from config.json, including manual exposure, gain, image quality, noise reduction, and color settings.
- Added new methods in CameraStreamer for configuring image quality, noise reduction, color settings, and advanced settings.
- Extended CameraConfig to include manual white balance RGB gains.
- Improved AutoRecordingManager to handle camera status updates and ensure proper recording starts/stops based on machine state changes.
- Created detailed configuration documentation for blower and conveyor cameras, outlining settings and their mappings to config.json.
- Implemented a comprehensive test script for auto-recording functionality with simulated MQTT messages, verifying correct behavior on machine state changes.

usda_vision_system/core/config.py

@@ -59,6 +59,11 @@ class CameraConfig:
     auto_white_balance: bool = True  # Enable automatic white balance
     color_temperature_preset: int = 0  # 0=auto, 1=daylight, 2=fluorescent, etc.
 
+    # Manual White Balance RGB Gains (for manual white balance mode)
+    wb_red_gain: float = 1.0  # Red channel gain (0.0-3.99, default 1.0)
+    wb_green_gain: float = 1.0  # Green channel gain (0.0-3.99, default 1.0)
+    wb_blue_gain: float = 1.0  # Blue channel gain (0.0-3.99, default 1.0)
+
     # Advanced Settings
     anti_flicker_enabled: bool = True  # Reduce artificial lighting flicker
     light_frequency: int = 1  # 0=50Hz, 1=60Hz (match local power frequency)