feat: CutThenThink v3.0 初始版本

完整实现 Tauri + Vanilla JS 轻量级截图工具

Phase 1 - 项目搭建
- Tauri 2.x 项目初始化
- Vite 前端项目搭建
- 基础 UI 框架（CSS 变量、组件库）
- 构建配置优化

Phase 2 - 核心截图功能
- 全屏/区域/窗口截图
- 截图预览和管理
- 文件命名和缩略图
- 全局快捷键集成

Phase 3 - 上传与存储
- 多图床上传（GitHub/Imgur/自定义）
- 配置管理系统
- SQLite 数据库

Phase 4 - OCR 集成
- 云端 OCR（百度/腾讯云）
- 插件管理系统
- 本地 OCR 插件（Go）
- OCR 结果处理

Phase 5 - AI 分类系统
- Claude/OpenAI API 集成
- Prompt 模板引擎
- 模板管理界面
- 自动分类流程

Phase 6 - 历史记录与管理
- 图库视图（网格/列表）
- 搜索与筛选
- 批量操作
- 导出功能（JSON/CSV/ZIP）

Phase 7 - 打包与发布
- 多平台构建配置
- CI/CD 工作流
- 图标和资源
- 安装包配置

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2025 CutThenThink
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.