feat(canvas): 绘图工具 - 集成 Excalidraw 并支持后台切换默认引擎

web/src/stores/use-user-store.ts

@@ -1,5 +1,7 @@
 import { create } from "zustand";
 
+import { DEFAULT_DRAWING_ENGINE, type CanvasDrawingEngineSetting } from "@/lib/canvas/canvas-drawing-engine";
+
 export type LocalUser = {
     id: string;
     username: string;
@@ -26,8 +28,10 @@ type UserStore = {
     hydrated: boolean;
     user: LocalUser | null;
     runtimeLimits: RuntimeLimits;
+    drawingEngine: CanvasDrawingEngineSetting;
     setUser: (user: LocalUser | null) => void;
     setRuntimeLimits: (limits?: RuntimeLimits) => void;
+    setDrawingEngine: (setting?: CanvasDrawingEngineSetting) => void;
     setHydrated: (hydrated: boolean) => void;
     clearSession: () => void;
 };
@@ -36,8 +40,10 @@ export const useUserStore = create<UserStore>()((set) => ({
     hydrated: false,
     user: null,
     runtimeLimits: { activeTaskLimit: 5, resourceUploadMB: 50, sessionUploadMB: 32 },
+    drawingEngine: { defaultEngine: DEFAULT_DRAWING_ENGINE },
     setUser: (user) => set({ user }),
     setRuntimeLimits: (runtimeLimits) => set({ runtimeLimits: runtimeLimits || { activeTaskLimit: 5, resourceUploadMB: 50, sessionUploadMB: 32 } }),
+    setDrawingEngine: (drawingEngine) => set({ drawingEngine: drawingEngine || { defaultEngine: DEFAULT_DRAWING_ENGINE } }),
     setHydrated: (hydrated) => set({ hydrated }),
-    clearSession: () => set({ user: null, runtimeLimits: { activeTaskLimit: 5, resourceUploadMB: 50, sessionUploadMB: 32 } }),
+    clearSession: () => set({ user: null, runtimeLimits: { activeTaskLimit: 5, resourceUploadMB: 50, sessionUploadMB: 32 }, drawingEngine: { defaultEngine: DEFAULT_DRAWING_ENGINE } }),
 }));