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。

src-tauri/Cargo.toml

@@ -0,0 +1,14 @@
+[package]
+name = "blockflow-workbench"
+version = "0.1.0"
+description = "BlockFlow Workbench desktop shell"
+authors = ["BlockFlow Workbench"]
+edition = "2021"
+
+[build-dependencies]
+tauri-build = { version = "2", features = [] }
+
+[dependencies]
+tauri = { version = "2", features = [] }
+tauri-plugin-dialog = "2"
+tauri-plugin-fs = "2"

src-tauri/build.rs

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+fn main() {
+    tauri_build::build()
+}

src-tauri/capabilities/default.json

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+{
+  "$schema": "../gen/schemas/desktop-schema.json",
+  "identifier": "default",
+  "description": "Permissions for the BlockFlow Workbench desktop window.",
+  "windows": ["main"],
+  "permissions": [
+    "core:default",
+    "dialog:default",
+    "dialog:allow-open",
+    "fs:default",
+    "fs:allow-exists",
+    "fs:allow-lstat",
+    "fs:allow-mkdir",
+    "fs:allow-read-dir",
+    "fs:allow-read-text-file",
+    "fs:allow-write-text-file"
+  ]
+}

src-tauri/gen/schemas/capabilities.json

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+{"default":{"identifier":"default","description":"Permissions for the BlockFlow Workbench desktop window.","local":true,"windows":["main"],"permissions":["core:default","dialog:default","dialog:allow-open","fs:default","fs:allow-exists","fs:allow-lstat","fs:allow-mkdir","fs:allow-read-dir","fs:allow-read-text-file","fs:allow-write-text-file"]}}

src-tauri/src/main.rs

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+use std::path::PathBuf;
+
+use tauri_plugin_fs::FsExt;
+
+#[tauri::command]
+fn allow_project_directory(app: tauri::AppHandle, path: String) -> Result<(), String> {
+    app.fs_scope()
+        .allow_directory(PathBuf::from(path), true)
+        .map_err(|error| error.to_string())
+}
+
+fn main() {
+    tauri::Builder::default()
+        .plugin(tauri_plugin_dialog::init())
+        .plugin(tauri_plugin_fs::init())
+        .invoke_handler(tauri::generate_handler![allow_project_directory])
+        .run(tauri::generate_context!())
+        .expect("error while running BlockFlow Workbench");
+}

src-tauri/tauri.conf.json

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+{
+  "$schema": "https://schema.tauri.app/config/2",
+  "productName": "BlockFlow Workbench",
+  "version": "0.1.0",
+  "identifier": "com.blockflow.workbench",
+  "build": {
+    "beforeDevCommand": "npm run dev",
+    "beforeBuildCommand": "npm run build",
+    "devUrl": "http://localhost:5173",
+    "frontendDist": "../dist"
+  },
+  "app": {
+    "windows": [
+      {
+        "label": "main",
+        "title": "BlockFlow Workbench",
+        "width": 1280,
+        "height": 800,
+        "minWidth": 960,
+        "minHeight": 640
+      }
+    ],
+    "security": {
+      "csp": null
+    }
+  },
+  "bundle": {
+    "active": true,
+    "targets": "all"
+  }
+}