修复(项目): 优化动态导入和测试配置

- 移除ImageCanvas和HistoryPanel中不必要的useAppStore动态导入
- 添加缺失的Jest测试依赖(jest, ts-jest, jest-environment-jsdom, identity-obj-proxy)
- 修复ImageCanvas测试中的React引用问题和forwardRef支持
- 清理因移除动态导入导致的语法错误
- 优化代码结构，提高构建性能

验证:
- 构建成功通过
- 所有5个测试套件通过(34个测试)
- TypeScript类型检查无错误

src/components/ImageCanvas.tsx

@@ -147,13 +147,10 @@ export const ImageCanvas: React.FC = () => {
                 const newUrl = URL.createObjectURL(blob);
                 console.log('从IndexedDB创建新的Blob URL:', newUrl);
                 // 更新canvasImage为新的URL
-                import('../store/useAppStore').then((storeModule) => {
-                  const useAppStore = storeModule.useAppStore;
-                  // 检查是否已取消
-                  if (!isCancelled) {
-                    useAppStore.getState().setCanvasImage(newUrl);
-                  }
-                });
+                // 检查是否已取消
+                if (!isCancelled) {
+                  useAppStore.getState().setCanvasImage(newUrl);
+                }
               } else {
                 console.error('IndexedDB中未找到图像');
               }
@@ -180,22 +177,20 @@ export const ImageCanvas: React.FC = () => {
         console.log('正在检查Blob URL是否有效...');
         
         // 尝试从AppStore重新获取Blob并创建新的URL
-        import('../store/useAppStore').then((module) => {
-          const useAppStore = module.useAppStore;
-          const blob = useAppStore.getState().getBlob(canvasImage);
-          if (blob) {
-            // 检查是否已取消
-            if (isCancelled) {
-              return;
-            }
-            
-            console.log('从AppStore找到Blob，尝试重新创建URL...');
-            // 重新创建Blob URL并重试加载
-            const newUrl = URL.createObjectURL(blob);
-            console.log('创建新的Blob URL:', newUrl);
-            // 更新canvasImage为新的URL
-            useAppStore.getState().setCanvasImage(newUrl);
-          } else {
+        const blob = useAppStore.getState().getBlob(canvasImage);
+        if (blob) {
+          // 检查是否已取消
+          if (isCancelled) {
+            return;
+          }
+          
+          console.log('从AppStore找到Blob，尝试重新创建URL...');
+          // 重新创建Blob URL并重试加载
+          const newUrl = URL.createObjectURL(blob);
+          console.log('创建新的Blob URL:', newUrl);
+          // 更新canvasImage为新的URL
+          useAppStore.getState().setCanvasImage(newUrl);
+        } else {
             // 检查是否已取消
             if (isCancelled) {
               return;
@@ -225,14 +220,7 @@ export const ImageCanvas: React.FC = () => {
                 console.error('检查Blob URL时出错:', fetchErr);
               });
           }
-        }).catch(err => {
-          // 检查是否已取消
-          if (isCancelled) {
-            return;
-          }
-          
-          console.error('导入AppStore时出错:', err);
-        });
+        
       }
     };