新增: playwright e2e 测试基建与 tauri 垫片

invoke 条件垫片使前端可在无 tauri 容器下直连 dev server 做端到端验证

package.json

@@ -9,6 +9,7 @@
     "dev:restart": "npm run dev:stop && npm run dev",
     "build": "vue-tsc --noEmit && vite build",
     "preview": "vite preview",
+    "test:e2e": "playwright test",
     "tauri": "tauri",
     "build:dev": "tauri build --debug --no-bundle"
   },
@@ -37,6 +38,7 @@
     "@types/dompurify": "^3.2.0",
     "@types/sortablejs": "^1.15.9",
     "@vitejs/plugin-vue": "^5.2.1",
+    "playwright": "^1.63.0",
     "typescript": "~5.6.3",
     "vite": "^6.0.7",
     "vue-tsc": "^2.2.0"