Addresses four hardening items in one change:
- #8 Pin @anthropic-ai/claude-code to 2.1.114 via Dockerfile ARG.
`docker compose build --build-arg CLAUDE_CODE_VERSION=X.Y.Z` upgrades.
- #2 Move `client.kill()` from an `except CancelledError` branch into a
`finally` guarded by an `exited_cleanly` flag. Any abnormal exit path
(httpx timeout, generator GC'd, unexpected exception) now reaps the
open-terminal child — previously only asyncio cancellation did, so
dropped browsers left claude billing tokens until EXECUTE_TIMEOUT.
- #9 Per-chat CLAUDE_CONFIG_DIR=~/chat-<id>/.claude. Two concurrent
chats for the same OWUI user no longer race each other on a shared
~/.claude/. Safe to shard now that credentials live in the proxy
rather than .credentials.json.
- #1 sandbox/cleanup.sh installed at /opt/cleanup.sh. Not auto-run;
README documents dry-run-by-default usage via `docker compose exec`.
CHAT_TTL_DAYS and SESSION_TTL_DAYS control retention.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Thomas Friedel