- Per-file streaming: text shows while AI works, collapses on tool call, ✅완료 at end
- Options UI: numbered choice buttons with number/keyword input selection
- Number input in chat (1~6) selects corresponding option chip
- Terminal error 🤖 button permanently visible in header bar
- Model card moved to tabs bar top-right, synced with panel width
- Removed 코드 저장 디렉토리 from settings; merged save/folder into sidebar
- Removed language selector from chat header
- Bottom cards anchored to sidebar bottom
- Simplified planInstruction prompt
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>