refactor: 主要功能实现

目前的工作已经实现的功能：
- 基本 FastAPI 路由；
- 基本 AI 聊天和创作功能；
- 用户信息管理、权限验证、JWT 令牌签发和验证、端点保护；
- HTML 验证码邮件发送和验证码验证。

src/nyahome/router/file_router.py

@@ -0,0 +1,55 @@
+from typing import Annotated, Sequence
+
+from fastapi import APIRouter, File, HTTPException, UploadFile
+from fastapi.params import Depends
+from sqlmodel import Session, select
+
+from nyahome.config import config_manager
+from nyahome.database import ModelUploadFile, ModelUser, get_session
+from nyahome.service.file_service import UPLOAD_DIR, s_get_safe_filename, s_save_upload_file
+
+from .auth import verify_token
+
+file_router = APIRouter(tags=["File"], prefix="/file")
+
+
+@file_router.get("/")
+async def get_files(
+    user: Annotated[ModelUser, Depends(verify_token)],
+    session: Annotated[Session, Depends(get_session)],
+) -> Sequence[ModelUploadFile]:
+    files: Sequence[ModelUploadFile] = session.exec(
+        select(ModelUploadFile).where(ModelUploadFile.uploader_id == user.id)
+    ).all()
+
+    return files
+
+
+@file_router.post("/upload/")
+async def file_upload(
+    file: Annotated[UploadFile, File()],
+    user: Annotated[ModelUser, Depends(verify_token)],
+    session: Annotated[Session, Depends(get_session)],
+) -> ModelUploadFile:
+    try:
+        safe_name = s_get_safe_filename(file.filename)  # type: ignore[arg-type]
+        dest_path = UPLOAD_DIR / safe_name
+    except TypeError as e:
+        raise HTTPException(status_code=400, detail=str(e)) from e
+
+    try:
+        await s_save_upload_file(dest_path, file)
+    except TypeError as e:
+        raise HTTPException(status_code=500, detail=str(e)) from e
+
+    download_url = f"{config_manager.get('site_url', 'http://localhost:9000')}/download/{safe_name}"
+    upload_file = ModelUploadFile(
+        original_name=file.filename,
+        safe_name=safe_name,
+        download_url=download_url,
+        uploader_id=user.id,
+    )
+    session.add(upload_file)
+    session.commit()
+    session.refresh(upload_file)
+    return upload_file