feat: deepseek 的一些修改

server/api/upload.py

@@ -0,0 +1,32 @@
+"""手动上传图片：插件用户在采集区手动补充参考图，转存本地 media 供预览与生图。"""
+from __future__ import annotations
+
+from fastapi import APIRouter, File, HTTPException, UploadFile
+
+from services import storage
+
+router = APIRouter(prefix="/api", tags=["upload"])
+
+# content-type → 落盘扩展名
+_ALLOWED_TYPES = {
+    "image/jpeg": ".jpg",
+    "image/png": ".png",
+    "image/webp": ".webp",
+    "image/gif": ".gif",
+}
+
+MAX_BYTES = 20 * 1024 * 1024  # 20MB
+
+
+@router.post("/upload-image")
+async def upload_image(file: UploadFile = File(...)):
+    data = await file.read()
+    ctype = (file.content_type or "").split(";")[0].strip().lower()
+    if ctype not in _ALLOWED_TYPES:
+        raise HTTPException(status_code=400, detail=f"不支持的图片类型: {file.content_type}")
+    if not data:
+        raise HTTPException(status_code=400, detail="空文件")
+    if len(data) > MAX_BYTES:
+        raise HTTPException(status_code=400, detail="图片超过 20MB")
+    key = storage.write_bytes(data, key_prefix="uploads", ext=_ALLOWED_TYPES[ctype])
+    return {"url": storage.public_url(key), "key": key}