feat(video-streaming): add ApiStatusIndicator, PerformanceDashboard, VideoDebugger, and VideoErrorBoundary components

- Implemented ApiStatusIndicator to monitor video API connection status with health check functionality.
- Created PerformanceDashboard for monitoring video streaming performance metrics in development mode.
- Developed VideoDebugger for diagnosing video streaming issues with direct access to test video URLs.
- Added VideoErrorBoundary to handle errors in video streaming components with user-friendly messages and recovery options.
- Introduced utility functions for performance monitoring and thumbnail caching to optimize video streaming operations.
- Added comprehensive tests for video streaming API connectivity and functionality.

.env.example

@@ -0,0 +1,14 @@
+# Environment Configuration for Pecan Experiments Application
+
+# USDA Vision Camera System API Configuration
+# Default: http://vision:8000 (current working setup)
+# For localhost setup, use: http://localhost:8000
+# For remote systems, use: http://192.168.1.100:8000 (replace with actual IP)
+VITE_VISION_API_URL=http://vision:8000
+
+# Supabase Configuration (if needed for production)
+# VITE_SUPABASE_URL=your_supabase_url
+# VITE_SUPABASE_ANON_KEY=your_supabase_anon_key
+
+# Development Configuration
+# VITE_DEV_MODE=true