- Add /projects/[id] route with project header, stats, and tabbed UI
- Add "New chat in [Project]" input that creates chats inside project
- Add project conversation search and filtering
- Add file upload with drag-and-drop for project documents
- Update ProjectFolder to navigate to project page on click
- Add initialMessage prop to ChatWindow for auto-sending first message
- Support ?firstMessage= query param in chat page for project chats
- Add projectId support to vector-store for document association
Add ChatGPT-style projects with cross-chat context sharing:
- Database schema v6 with projects, projectLinks, chatChunks tables
- Project CRUD operations and storage layer
- ProjectsState store with Svelte 5 runes
- Cross-chat context services (summaries, chat indexing, context assembly)
- Project context injection into ChatWindow system prompt
- ProjectFolder collapsible component in sidebar
- ProjectModal for create/edit with Settings, Instructions, Links tabs
- MoveToProjectModal for moving conversations between projects
- "New Project" button in sidebar
- "Move to Project" action on conversation items
Conversations in a project share awareness through:
- Project instructions injected into system prompt
- Summaries of other project conversations
- RAG search across project chat history (stub)
- Reference links
