feat: Add MQTT publisher and tester scripts for USDA Vision Camera System

- Implemented mqtt_publisher_test.py for manual MQTT message publishing
- Created mqtt_test.py to test MQTT message reception and display statistics
- Developed test_api_changes.py to verify API changes for camera settings and filename handling
- Added test_camera_recovery_api.py for testing camera recovery API endpoints
- Introduced test_max_fps.py to demonstrate maximum FPS capture functionality
- Implemented test_mqtt_events_api.py to test MQTT events API endpoint
- Created test_mqtt_logging.py for enhanced MQTT logging and API endpoint testing
- Added sdk_config.py for SDK initialization and configuration with error suppression

usda_vision_system/camera/sdk_config.py

@@ -0,0 +1,89 @@
+"""
+SDK Configuration for the USDA Vision Camera System.
+
+This module handles SDK initialization and configuration to suppress error messages.
+"""
+
+import sys
+import os
+import logging
+
+# Add python demo to path
+sys.path.append(os.path.join(os.path.dirname(__file__), "..", "..", "python demo"))
+import mvsdk
+
+logger = logging.getLogger(__name__)
+
+# Global flag to track SDK initialization
+_sdk_initialized = False
+
+
+def initialize_sdk_with_suppression():
+    """Initialize the camera SDK with error suppression"""
+    global _sdk_initialized
+    
+    if _sdk_initialized:
+        return True
+    
+    try:
+        # Initialize SDK with English language
+        result = mvsdk.CameraSdkInit(1)
+        if result == 0:
+            logger.info("Camera SDK initialized successfully")
+            
+            # Try to set system options to suppress logging
+            try:
+                # These are common options that might control logging
+                # We'll try them and ignore failures since they might not be supported
+                
+                # Try to disable debug output
+                try:
+                    mvsdk.CameraSetSysOption("DebugLevel", "0")
+                except:
+                    pass
+                
+                # Try to disable console output
+                try:
+                    mvsdk.CameraSetSysOption("ConsoleOutput", "0")
+                except:
+                    pass
+                
+                # Try to disable error logging
+                try:
+                    mvsdk.CameraSetSysOption("ErrorLog", "0")
+                except:
+                    pass
+                
+                # Try to set log level to none
+                try:
+                    mvsdk.CameraSetSysOption("LogLevel", "0")
+                except:
+                    pass
+                
+                # Try to disable verbose mode
+                try:
+                    mvsdk.CameraSetSysOption("Verbose", "0")
+                except:
+                    pass
+                
+                logger.debug("Attempted to configure SDK logging options")
+                
+            except Exception as e:
+                logger.debug(f"Could not configure SDK logging options: {e}")
+            
+            _sdk_initialized = True
+            return True
+        else:
+            logger.error(f"SDK initialization failed with code: {result}")
+            return False
+            
+    except Exception as e:
+        logger.error(f"SDK initialization failed: {e}")
+        return False
+
+
+def ensure_sdk_initialized():
+    """Ensure the SDK is initialized before camera operations"""
+    if not _sdk_initialized:
+        return initialize_sdk_with_suppression()
+    return True