Use /runpod-volume mount point for RunPod network volumes

RunPod mounts network volumes at /runpod-volume, not /userdata.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

CLAUDE.md

@@ -11,7 +11,7 @@ ComfyUI-based image-to-video generation service deployed on RunPod Serverless. A
 ```
 RunPod API Request → handler.py → ComfyUI Server (port 8188) → GPU Inference → Response
                                         ↓
-                              Network Volume (/userdata) for models
+                              Network Volume (/runpod-volume) for models
 ```
 
 **Key flow in handler.py:**
@@ -38,7 +38,7 @@ CI/CD via Gitea Actions triggers on push to `main` branch.
 
 ```bash
 docker run --gpus all -p 8188:8188 \
-  -v /path/to/models:/userdata/models \
+  -v /path/to/models:/runpod-volume/models \
   comfyui-runpod:latest
 ```
 
@@ -77,7 +77,7 @@ docker run --gpus all -p 8188:8188 \
 
 ## Key Considerations
 
-- Models stored on RunPod Network Volume at `/userdata/models/`
+- Models stored on RunPod Network Volume at `/runpod-volume/models/`
 - Cold start ~30-60s for ComfyUI initialization
 - Large outputs (>10MB) returned as file paths, not base64
 - Workflow files in `workflows/` directory (API format)