- Extracted OpenAI compatibility detection and resolution logic into dedicated `openai-completions-compat` module.
- Refactored `detectCompat()` and `getCompat()` to delegate to new compat module functions with simplified conditional logic.
- Fixed OAuth redirect URI validation to preserve exact configured values without trailing slash normalization.
- Improved session deletion to return boolean status and display error messages in UI instead of silently failing.
- Added `/session delete` command with Delete key support and confirmation dialogs for session management.
- Added automatic Ollama model context window discovery from metadata for accurate token limits.
- Added `attribution` option to `PromptOptions` for explicit billing and initiator attribution control.
- Added automatic clearing of completed and abandoned todo tasks after ~1 minute.
- Changed session directory migration to use `-tmp-` prefix instead of double-dash format.
- Updated Ollama model registration to use discovered context window instead of hardcoded 128000 token default.
Fixes#440