f607feaec4
- Fix WefaxProgress.line_data serialization: change from Vec<u8> (JSON
array) to base64-encoded String so the browser's atob() call works
- Set output_dir in server WefaxConfig to $XDG_CACHE_HOME/trx-rs/wefax
so decoded PNG images are persisted to disk
- Add /images/{filename} GET route in trx-frontend-http to serve saved
WEFAX PNGs with path traversal protection
- Capture live canvas as data URI on image completion for immediate
gallery thumbnail display without requiring the file serving route
https://claude.ai/code/session_01V1kLpgLPb8Q5wSv4UrcLbr
Signed-off-by: Claude <noreply@anthropic.com>