feat: 新增模型管理和供应商配置功能

### v1.1.0
- #### Added
  - 新增 AI 笔记风格选择
  - 新增 AI 笔记返回格式选择
  - 添加 AI 自定义笔记备注 Prompt
  - 添加任务失败重试
  - 添加全局设置页，可在设置页进行模型设置

- #### Optimize
  - 优化前端样式，优化用户体验
  - 增加生成中间产物，可用于失败后加快生成速度
- #### Fix
  - 修复视频截图视频过早删除错误

backend/app/db/builtin_providers.json

@@ -0,0 +1,42 @@
+[
+  {
+    "id": "openai",
+    "name": "OpenAI",
+    "type": "built-in",
+    "logo": "OpenAI",
+    "api_key": "",
+    "base_url": "https://api.openai.com/v1"
+  },
+  {
+    "id": "deepseek",
+    "name": "DeepSeek",
+    "type": "built-in",
+    "logo": "DeepSeek",
+    "api_key": "",
+    "base_url": "https://api.deepseek.com"
+  },
+  {
+    "id": "qwen",
+    "name": "Qwen",
+    "type": "built-in",
+    "logo": "Qwen",
+    "api_key": "",
+    "base_url": "https://qwen.aliyun.com/api"
+  },
+  {
+    "id": "doubao",
+    "name": "豆包 (Doubao)",
+    "type": "built-in",
+    "logo": "Doubao",
+    "api_key": "",
+    "base_url": "https://open.doubao.com/api"
+  },
+    {
+    "id": "Claude",
+    "name": "Claude",
+    "type": "built-in",
+    "logo": "Claude",
+    "api_key": "",
+    "base_url": "https://"
+  }
+]