v0.2.26

Custom Model Endpoint Support

• Added support for custom API endpoints (OpenRouter, Azure, etc.)
• All API calls now properly resolve to custom models when configured
• New settings UI for configuring custom endpoints
• Improved validation and documentation for custom model setup

Automatic OAuth Token Refresh

• OAuth tokens for Google, Slack, and Microsoft sources now refresh automatically
• Tokens are refreshed transparently before API calls when expired or expiring within 5 minutes
• No more manual re-authentication needed when tokens expire

Improvements

System Prompt Optimization

• 70% reduction in system prompt size (~400 lines → ~120 lines)
• Documentation externalized to markdown files loaded at runtime
• Faster prompt processing and lower token costs
• Case-insensitive context file matching (CLAUDE.md, agents.md, etc.)

UI Enhancements

• Improved unread message tracking
• Enhanced tool icons display
• Changed configured source tag color to light green
• Removed Gallery feature
• Moved tooltip component to shared UI package

Windows Build

• Fixed electron-builder configuration for Windows
• Removed Bun dependencies from Windows build
• Fixed PowerShell property access for hyphenated platform names
• Use npc to run vite directly on Windows

Bug Fixes

• OAuth: Added debounce to prevent concurrent token refreshes
• Icon Cache: Fixed icon caching issues
• Basic Auth: Fixed credential handling and URL normalization
• Release Safety: Prevent accidental releases from feature branches
• Downloads: Use /latest/ URLs for marketing site downloads

Technical Changes

• Improved error handling for models without tool support