v0.22.7: Reasoning field support, Import from Claude, and bug fixes

New features

- Reasoning field support in streaming responses - Added support for displaying reasoning fields in chat completion streaming chunks for models that provide extended reasoning
- Import from Claude restored - Re-enabled the "Import from Claude" option in the droids menu for easier conversation migration

Bug fixes

- Fixed MCP status indicator to only show when MCP servers are actually configured
- Fixed message list flickering
- Added support for custom headers when adding MCP servers
- Fixed sound files not being included in SEA binary releases
- Fixed Ctrl+C interruption messages to only display to users and not appear in logs for cleaner output
- Resolved issue where tool use would incorrectly appear in user messages after tool cancellation