chore: 初始化 BlockFlow Workbench 仓库

建立前端与 Tauri 桌面端的首个版本提交，包含核心编辑器、项目文件读写、测试与构建配置。

补充 Git 忽略规则和换行规范，排除依赖、构建产物、本地运行日志与临时验证文件，方便在其他电脑继续开发。

package.json

@@ -0,0 +1,43 @@
+{
+  "name": "blockflow-workbench",
+  "version": "0.1.0",
+  "private": true,
+  "type": "module",
+  "scripts": {
+    "dev": "vite",
+    "build": "tsc --noEmit && vite build",
+    "test": "vitest run",
+    "typecheck": "tsc --noEmit",
+    "tauri": "tauri",
+    "tauri:dev": "tauri dev",
+    "tauri:build": "tauri build"
+  },
+  "devDependencies": {
+    "@tauri-apps/cli": "^2.11.2",
+    "@testing-library/jest-dom": "^6.9.1",
+    "@testing-library/react": "^16.3.2",
+    "@types/node": "^25.9.1",
+    "@types/react": "^19.2.15",
+    "@types/react-dom": "^19.2.3",
+    "@vitejs/plugin-react": "^6.0.2",
+    "autoprefixer": "^10.5.0",
+    "jsdom": "^29.1.1",
+    "postcss": "^8.5.15",
+    "tailwindcss": "^3.4.19",
+    "typescript": "^6.0.3",
+    "vite": "^8.0.14",
+    "vitest": "^4.1.7"
+  },
+  "dependencies": {
+    "@tauri-apps/api": "^2.11.0",
+    "@tauri-apps/plugin-dialog": "^2.7.1",
+    "@tauri-apps/plugin-fs": "^2.5.1",
+    "@tiptap/core": "^3.23.6",
+    "@tiptap/react": "^3.23.6",
+    "@tiptap/starter-kit": "^3.23.6",
+    "lucide-react": "^1.16.0",
+    "react": "^19.2.6",
+    "react-dom": "^19.2.6",
+    "zustand": "^5.0.13"
+  }
+}