TypeScript error fixes:
- Fix UUID mock type in chunker.test.ts
- Remove invalid timestamp property from Message types in tests
- Fix mockFetch type in client.test.ts
- Add missing parameters property to tool definition in test
Accessibility fixes (109 → 40 warnings, remaining are CSS @apply):
- Add aria-labels to all toggle switches and icon-only buttons
- Add tabindex="-1" to all dialog elements with role="dialog"
- Add onkeydown handlers to modal backdrops for keyboard accessibility
- Fix form labels: change decorative labels to spans, use fieldset/legend for groups
- Convert fileInput variables to $state() for proper reactivity
- Fix closure captures in ThinkingBlock and HtmlPreview with $derived()
- Add role="region" to drag-and-drop zones
- Restore keyboard navigation to BranchNavigator
All 547 tests pass.
- Increase light mode text contrast in app.css (slate.600→700, slate.500→600)
- Add light/dark mode prose styles in MessageContent.svelte for proper markdown rendering
- Convert hardcoded slate-* classes to theme utilities across 37 components
- Fix code block copy button and scrollbar theming for both modes
- Update all route pages (models, tools, knowledge, prompts) with theme classes
- Ensure consistent theming in modals, dialogs, and form inputs
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Context Window Management:
- Add ContextFullModal with recovery options (summarize, new chat, dismiss)
- Show toast notifications at 85% and 95% context thresholds
- Block sending when context exceeds 100% until user takes action
Conversation Summarization:
- Add isSummarized/isSummary flags to Message type
- Implement markAsSummarized() and insertSummaryMessage() in ChatState
- Add messagesForContext derived state (excludes summarized, includes summaries)
- Complete handleSummarize flow with LLM summary generation
- Add amber-styled summary message UI with archive icon
Auto-scroll Fixes:
- Fix Svelte 5 reactivity issues by using plain variables instead of $state
- Add continuous scroll during streaming via streamBuffer tracking
- Properly handle user scroll override (re-enable at bottom)
Drag & Drop Improvements:
- Add full-screen drag overlay with document-level event listeners
- Use dragCounter pattern for reliable nested element detection
- Add hideDropZone prop to FileUpload/ImageUpload components
Additional Features:
- Add SystemPromptSelector for per-conversation prompts
- Add SearchModal for full-text message search
- Add ShortcutsModal for keyboard shortcuts help
- Add theme toggle to TopNav
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
