Release v0.7.1

Features\n- Improve message editing UI with inline edit button and mobile responsiveness\n- Add optimistic UI updates for prompt sending\n\n## Bug Fixes\n- Fix duplicate logic in message editing\n- Fix model store sync with config changes for context usage updates (#75)\n- Fix async prompt endpoint to prevent timeout on subagent tasks\n\n## Commits\n- b0f67c6 - Improve message editing UI with inline edit button and mobile responsiveness\n- 023e51d - Add optimistic UI updates for prompt sending and fix duplicate logic in message editing\n- 05af9d9 - fix: sync model store with config changes for context usage updates (#75)\n- efd3b94 - fix: use async prompt endpoint to prevent timeout on subagent tasks