Dev

[stormyy00]

Summary by CodeRabbit

• New Features

  • Global chat conversations with streaming replies, sidebar, and message threading.
  • Document thumbnails and thumbnail previews throughout the UI.
  • Inline document preview modal for quick viewing.

• Improvements

  • Enhanced search UX and richer results display.
  • Refined trash workflow with detailed deletion/restore feedback.
  • Streamlined sign-in using a magic-link-first flow and added Chat dashboard tab.

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Project	Deployment	Actions	Updated (UTC)
continote	Ready	Preview, Comment	Feb 2, 2026 3:23am

[coderabbitai]

Walkthrough

Adds a global, bin‑independent chat feature with SSE streaming and RAG search; implements thumbnail generation for images/PDFs and surfaces thumbnails in APIs and UI; expands trash cleanup with permanent deletion and failure tracking; and introduces multiple frontend UI components, hooks, and stores to support search, document preview, and chat.

Changes

Cohort / File(s)	Summary
Package files package.json, server/package.json	Added frontend deps (@tanstack/react-form, react-markdown, react-syntax-highlighter, @types/react-syntax-highlighter) and server deps for thumbnails/PDFs (canvas, pdfjs-dist, sharp).
Global Chat DB schema server/src/db/schemas/global-conversations.ts, server/src/db/schemas/index.ts	New drizzle tables global_conversation and global_message with JSONB metadata/sources and exported types/relations.
Global Chat backend server/src/global-chat/*.ts, server/src/routes/global-chat.router.ts, server/src/app.ts	New repository, service (SSE streaming, RAG vector search), controller, router; mounted at /api/global-chat; req auth enforced; app-level ETag disabled and API no-store headers added.
Vector search integration server/src/langchain/vector-store.service.ts	Added user-scoped searchSimilarForUser that restricts vector search to a user's documents and optionally filters by document IDs.
Documents / Thumbnails server/src/utils/thumbnails.ts, server/src/documents/*, server/src/db/schemas/documents.ts, server/src/types/models.ts	Thumbnail generation (images & PDFs → 300x300 WebP), store thumbnailPath, surface thumbnailUrl in API, generate/upload thumbnails on batch upload, include thumbnail cleanup on permanent delete.
Trash & cleanup server/src/trash/*.ts, server/src/bins/*	New TrashRepository for listing deleted items; TrashService emptyTrash now tracks failures and returns detailed result; bins/documents permanent deletion validates trash state and performs storage + vector cleanup.
Middleware & utils server/src/middleware/bin-ownership.middleware.ts, server/src/utils/auth.ts, server/src/utils/env.ts, server/src/app.ts	Normalized param handling for string
Controllers / typing fixes server/src/chat/chat.controller.ts, server/src/documents/documents.controller.ts, server/src/trash/trash.controller.ts, server/src/bins/bins.controller.ts	Stricter param typing (IdParams), safer parsing of route params/arrays, adjusted error mappings, and removal of one explicit auth guard replaced by non-null assertion in bins controller.
Frontend global chat UI src/components/global-chat/*, src/hooks/use-global-chat.ts, src/stores/global-chat-store.ts, src/types/global-chat.ts	New GlobalChat component, ConversationList, MessageBubble (Markdown + syntax highlighting), ChatInput, StatusIndicator; hooks for SSE streaming, optimistic updates, and a Zustand store for chat state and document filters.
Document preview & search UI src/components/documents/document-preview-modal.tsx, src/components/search.tsx, src/hooks/use-document-search.ts, src/hooks/use-search.tsx	Document preview modal, reusable Search UI, search provider and hook, and auto-clearing search behavior.
Home / dashboard / layout src/components/home/*, src/components/dash-layout.tsx, src/app/dashboard/*, src/app/layout.tsx, src/data/navigation.tsx	Tile-based home UI, new DashboardLayout with breadcrumbs, SearchProvider wrapping dashboard, Chat page and navigation Tab added.
UI components & tweaks src/components/ui/*, src/components/chat/*, src/components/trash/*, src/components/sidebar/*	New breadcrumb primitives, xs button size, chat messages UI updates (file picker, expanded mode), async confirm dialog, trash toolbar alerts/messages, sidebar scrolling changes.
API client & util changes src/utils/api-client.ts, src/utils/api.ts	Expanded trash.empty response shape (failedCount + failures), allowed PATCH method, added fetch cache: "no-store" for API and upload calls.
Hooks & stores updates src/hooks/use-documents.ts, src/hooks/use-trash.ts, src/stores/ui-store.ts	Added document download URL hook and query keys, expanded invalidate keys on trash mutations, added UI store state for document preview.

Sequence Diagram(s)

sequenceDiagram
  participant Client
  participant Router as GlobalChatRouter
  participant Controller as GlobalChatController
  participant Service as GlobalChatService
  participant Vector as VectorStoreService
  participant Docs as DocumentsRepository
  participant Repo as GlobalChatRepository
  participant LLM as LLM

  Client->>Router: POST /api/global-chat/conversations/:id/messages (stream=true, message, documentIds?)
  Router->>Controller: forward request (requireAuth)
  Controller->>Service: sendMessageWithStreaming(conversationId, userId, message, res, documentIds)
  Service->>Repo: addMessage(user message)
  Service->>Docs: fetch user documents (for vector scope)
  Service->>Vector: searchSimilarForUser(query, userId, limit, filterDocumentIds)
  Vector->>Docs: enrich results with filename/fileType
  Vector-->>Service: returns search hits (sources)
  Service->>LLM: construct prompt + context, request streaming generation
  LLM-->>Service: stream tokens (delta events)
  Service->>Client: SSE events (status -> delta* -> done with messageId + sources)
  Service->>Repo: persist assistant message with metadata (sources, modelUsed)
  Service-->>Controller: finalize response

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Estimated code review effort

🎯 4 (Complex) | ⏱️ ~75 minutes

"🐰
I hopped through code both day and night,
Thumbnails, chats, and trash set right.
Streams that murmur, search that gleams,
A cozy warren of new dreams.
Sniff the changes — a joyful byte!"

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