another upload fix

app/main.py

@@ -214,7 +214,7 @@ def _run_manim(scene_code: str, run_id: Optional[str] = None) -> Tuple[bytes, Op
 
     return mp4.read_bytes(), png_path
 
-def _def _upload_image_to_gemini(png_path: Path):
+def _upload_image_to_gemini(png_path: Path):
     """Upload an image to Gemini Files API and return the file reference."""
     if not client or not png_path or not png_path.exists():
         return None
@@ -226,6 +226,7 @@ def _def _upload_image_to_gemini(png_path: Path):
         )
     return file_ref
 
+
 def llm_generate_manim_code(prompt: str, previous_code: Optional[str] = None) -> str:
     """First-pass generation (capture-aware)."""
     if not client: