Increase logging level to DEBUG and enhance MaskTool callbacks

Set logging level to DEBUG in both Python and JavaScript loggers for improved debugging. Updated MaskTool to accept an onStateChange callback and trigger it after mask state changes, allowing Canvas to respond to mask updates.

js/MaskTool.js

@@ -3,9 +3,10 @@ import {createModuleLogger} from "./utils/LoggerUtils.js";
 const log = createModuleLogger('Mask_tool');
 
 export class MaskTool {
-    constructor(canvasInstance) {
+    constructor(canvasInstance, callbacks = {}) {
         this.canvasInstance = canvasInstance;
         this.mainCanvas = canvasInstance.canvas;
+        this.onStateChange = callbacks.onStateChange || null;
         this.maskCanvas = document.createElement('canvas');
         this.maskCtx = this.maskCanvas.getContext('2d');
 
@@ -88,6 +89,9 @@ export class MaskTool {
             if (this.canvasInstance.canvasState) {
                 this.canvasInstance.canvasState.saveMaskState();
             }
+            if (this.onStateChange) {
+                this.onStateChange();
+            }
         }
     }