refactor: 提取 core 库 + 新增 CLI 版本

- 创建 Cargo workspace（core / src-tauri / cli 三 crate）
- core: 纯 Rust 库，零 Tauri 依赖，包含所有业务逻辑
- src-tauri/commands: 改为薄包装，调用 core 函数
- cli: 基于 clap 的命令行工具，支持 JSON 输出
- CLI 命令: list, add, remove, conflicts, scan, profile, check-admin

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

src-tauri/Cargo.toml

@@ -16,14 +16,10 @@ crate-type = ["staticlib", "rlib"]
 tauri-build = { version = "2.6.2", features = [] }
 
 [dependencies]
+path-editor-core = { path = "../core" }
 serde_json = "1.0"
 serde = { version = "1.0", features = ["derive"] }
 log = "0.4"
 tauri = { version = "2.11.2", features = [] }
 tauri-plugin-log = "2"
 tauri-plugin-dialog = "2"
-
-# Windows API
-winreg = "0.52"
-dirs = "5"
-chrono = "0.4"