added api

backend/app/api/routes/media.py

@@ -0,0 +1,21 @@
+from pathlib import Path
+
+from fastapi import APIRouter, HTTPException
+from fastapi.responses import FileResponse
+
+from app.config import get_settings
+
+router = APIRouter(prefix="/media", tags=["media"])
+
+
+@router.get("/generated/{filename}")
+def get_generated_image(filename: str) -> FileResponse:
+    if ".." in filename or "/" in filename or "\\" in filename:
+        raise HTTPException(status_code=400, detail="Invalid filename")
+
+    settings = get_settings()
+    path = Path(settings.generated_media_dir) / filename
+    if not path.is_file():
+        raise HTTPException(status_code=404, detail="File not found")
+
+    return FileResponse(path, media_type="image/png")