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/routers/model.py

@@ -0,0 +1,36 @@
+from fastapi import APIRouter
+from pydantic import BaseModel
+
+from app.services.model import ModelService
+from app.utils.response import ResponseWrapper as R
+router = APIRouter()
+modelService = ModelService()
+class CreateModelRequest(BaseModel):
+    provider_id: str
+    model_name: str
+
+# 返回体：模型信息
+class ModelItem(BaseModel):
+    id: int
+    model_name: str
+@router.get("/model_list")
+def model_list():
+    try:
+        return R.success(modelService.get_all_models(True),msg="获取模型列表成功")
+    except Exception as e:
+        return R.error(e)
+
+@router.get("/model_list/{provider_id}")
+def model_list(provider_id):
+    try:
+        return R.success(modelService.get_all_models_by_id(provider_id))
+    except Exception as e:
+        return R.error(e)
+
+@router.post("/models")
+def create_model(data: CreateModelRequest):
+    success = ModelService.add_new_model(data.provider_id, data.model_name)
+    if not success:
+        raise R.error("模型添加失败")
+    return R.success(msg="模型添加成功")
+