新增 全局错误toast提示；

src/hooks/useImageGeneration.ts

@@ -3,9 +3,11 @@ import { geminiService, GenerationRequest, EditRequest } from '../services/gemin
 import { useAppStore } from '../store/useAppStore';
 import { generateId } from '../utils/imageUtils';
 import { Generation, Edit, Asset } from '../types';
+import { useToast } from '../components/ToastContext';
 
 export const useImageGeneration = () => {
   const { addGeneration, setIsGenerating, setCanvasImage, setCurrentProject, currentProject } = useAppStore();
+  const { addToast } = useToast();
 
   const generateMutation = useMutation({
     mutationFn: async (request: GenerationRequest) => {
@@ -35,15 +37,7 @@ export const useImageGeneration = () => {
             seed: request.seed,
             temperature: request.temperature
           },
-          sourceAssets: request.referenceImage ? [{
-            id: generateId(),
-            type: 'original',
-            url: `data:image/png;base64,${request.referenceImages[0]}`,
-            mime: 'image/png',
-            width: 1024,
-            height: 1024,
-            checksum: request.referenceImages[0].slice(0, 32)
-          }] : request.referenceImages ? request.referenceImages.map((img, index) => ({
+          sourceAssets: request.referenceImages ? request.referenceImages.map((img, index) => ({
             id: generateId(),
             type: 'original' as const,
             url: `data:image/png;base64,${img}`,
@@ -77,6 +71,7 @@ export const useImageGeneration = () => {
     },
     onError: (error) => {
       console.error('生成失败:', error);
+      addToast('图像生成失败，请重试', 'error');
       setIsGenerating(false);
     }
   });
@@ -99,8 +94,11 @@ export const useImageEditing = () => {
     selectedGenerationId,
     currentProject,
     seed,
-    temperature 
+    temperature,
+    uploadedImages
   } = useAppStore();
+  
+  const { addToast } = useToast();
 
   const editMutation = useMutation({
     mutationFn: async (instruction: string) => {
@@ -174,12 +172,12 @@ export const useImageEditing = () => {
         // 绘制带透明度的遮罩叠加
         maskedCtx.globalCompositeOperation = 'source-over';
         maskedCtx.globalAlpha = 0.4;
-       maskedCtx.fillStyle = '#A855F7';
+        maskedCtx.fillStyle = '#A855F7';
         
         brushStrokes.forEach(stroke => {
           if (stroke.points.length >= 4) {
             maskedCtx.lineWidth = stroke.brushSize;
-           maskedCtx.strokeStyle = '#A855F7';
+            maskedCtx.strokeStyle = '#A855F7';
             maskedCtx.lineCap = 'round';
             maskedCtx.lineJoin = 'round';
             maskedCtx.beginPath();
@@ -262,6 +260,7 @@ export const useImageEditing = () => {
     },
     onError: (error) => {
       console.error('编辑失败:', error);
+      addToast('图像编辑失败，请重试', 'error');
       setIsGenerating(false);
     }
   });