Add comprehensive test suite for USDA Vision Camera System

- Implemented main test script to verify system components and functionality.
- Added individual test scripts for camera exposure settings, API changes, camera recovery, maximum FPS, MQTT events, logging, and timezone functionality.
- Created service file for system management and automatic startup.
- Included detailed logging and error handling in test scripts for better diagnostics.
- Ensured compatibility with existing camera SDK and API endpoints.

docs/README.md

@@ -0,0 +1,49 @@
+# USDA Vision Camera System - Documentation
+
+This directory contains detailed documentation for the USDA Vision Camera System.
+
+## Documentation Files
+
+### 📋 [PROJECT_COMPLETE.md](PROJECT_COMPLETE.md)
+Complete project overview and final status documentation. Contains:
+- Project completion status
+- Final system architecture
+- Deployment instructions
+- Production readiness checklist
+
+### 🔧 [API_CHANGES_SUMMARY.md](API_CHANGES_SUMMARY.md)
+Summary of API changes and enhancements made to the system.
+
+### 📷 [CAMERA_RECOVERY_GUIDE.md](CAMERA_RECOVERY_GUIDE.md)
+Guide for camera recovery procedures and troubleshooting camera-related issues.
+
+### 📡 [MQTT_LOGGING_GUIDE.md](MQTT_LOGGING_GUIDE.md)
+Comprehensive guide for MQTT logging configuration and troubleshooting.
+
+## Main Documentation
+
+The main system documentation is located in the root directory:
+- **[../README.md](../README.md)** - Primary system documentation with installation, configuration, and usage instructions
+
+## Additional Resources
+
+### Demo Code
+- **[../demos/](../demos/)** - Demo scripts and camera SDK examples
+
+### Test Files
+- **[../tests/](../tests/)** - Test scripts and legacy test files
+
+### Jupyter Notebooks
+- **[../notebooks/](../notebooks/)** - Interactive notebooks for system exploration and testing
+
+## Quick Links
+
+- [System Installation](../README.md#installation)
+- [Configuration Guide](../README.md#configuration)
+- [API Documentation](../README.md#api-reference)
+- [Troubleshooting](../README.md#troubleshooting)
+- [Camera SDK Examples](../demos/camera_sdk_examples/)
+
+## Support
+
+For technical support and questions, refer to the main [README.md](../README.md) troubleshooting section or check the system logs.