Adds two related features for enhanced model customization:
**Model-Specific System Prompts:**
- Assign prompts to models via Settings > Model Prompts
- Capability-based default prompts (vision, tools, thinking, code)
- Auto-select appropriate prompt when switching models in chat
- Per-model prompt mappings stored in IndexedDB
**Custom Ollama Model Creation:**
- Create custom models with embedded system prompts via Models page
- Edit system prompts of existing custom models
- Streaming progress during model creation
- Visual "Custom" badge for models with embedded prompts
- Backend handler for Ollama /api/create endpoint
New files:
- ModelEditorDialog.svelte: Create/edit dialog for custom models
- model-creation.svelte.ts: State management for model operations
- model-prompt-mappings.svelte.ts: Model-to-prompt mapping store
- model-info-service.ts: Fetches and caches model info from Ollama
- modelfile-parser.ts: Parses system prompts from Modelfiles
- 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>
- Add onSelect callback to SystemPromptSelector for 'new' mode
- Track selected prompt locally (newChatPromptId) before conversation exists
- Show selector in both 'new' and 'conversation' modes
- Apply newChatPromptId when streaming in new conversation
Note: Theme toggle mechanism works but CSS lacks light mode styles
(app uses hardcoded dark colors, would need CSS refactoring)
🤖 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>
