- Add OpenRouter provider support with @openrouter/ai-sdk-provider
- Fix input not disabling during 'submitted' state for fast providers
- Apply disable logic to all interactive elements (textarea, buttons, handlers)
- Clean up env.example by removing model examples and separator blocks
- Upgrade zod to v4.1.12 for compatibility with ollama-ai-provider-v2
- Add debug logging for status changes in chat components
- Add toggle button in chat panel header
- Implement collapsed state with thin vertical strip
- Add Ctrl+B keyboard shortcut to toggle visibility
- Canvas expands to full width when chat is hidden
- Smooth 300ms transition animation
- Updated system prompt to allow up to 3 retry attempts with adjusted search patterns
- Simplified error response to provide current diagram XML and reference retry policy
- AI model self-manages retries based on system instructions
- Add formatXML function to format single-line XML with proper indentation
- Format chartXml after fetching to ensure consistency
- Update replaceXMLParts to handle single-line XML with substring fallback
- Improve edit_diagram tool guidance with SEARCH/REPLACE best practices
- Add concrete examples to help AI use minimal, targeted edits
