v0.1.13

Add image input support.

• Android app can pick images from the system picker and show pending thumbnails in chat input.
• Images are uploaded to the bridge server in websocket-safe chunks.
• Server stores uploaded images inside the session cwd under .ccm-mobile/uploads.
• Sent prompts include the uploaded image file path so Claude/Codex can inspect it from the session workspace.

Backend redeploy and APK update are required.

APK SHA-256: 6b5f9cab611a7bca3194afd2b0d21caea58d3a79381c7ec464f9d8bfdec59b38