batch4.1-5.1: dedup audit, archive 400 fix, sidebar Delete, landing-page enrichment, auto-name tool-call fix
- Fastify global empty-JSON-body parser fixes archive/unarchive/stop 400s - Removed redundant local sessionEvents.emit at all 5+2 sites with server-side WS publishers; added dedupe guards in useSidebar/Workspace/Project handlers - Sidebar session right-click adds Delete (destructive) with confirm Dialog - Session.tsx navigates away on session_deleted/session_archived for the active session - SessionLandingPage chat rows show message_count, effective_context_tokens, last_message_preview via LATERAL joins on GET /api/sessions/:id/chats - Workspace.tsx pane drag-to-reorder using native HTML5 events (no new deps) - CompactCard: Copy toast, Send-to-chat with target chat name, empty-state in share popover, Re-run button - auto_name.ts: filter count gate and assistant-fetch by content <> '' so tool-call assistant rows don't trip the once-and-only-once guard - Adds CLAUDE.md and apps/web/src/lib/format.ts Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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CLAUDE.md
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# CLAUDE.md
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This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.
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## What is BooCode
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Self-hosted single-user developer chat app. AI assistant with read-only file tools (view_file, list_dir, grep, find_files) running against a local llama-swap inference server. Sessions organized by project, with a multi-pane workspace (chat + file browser side by side).
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## Commands
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```bash
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# Development (run in separate terminals)
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pnpm dev:server # tsx watch, port 3000
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pnpm dev:web # Vite dev server, port 5173 (proxies /api to :3000)
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# Build
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pnpm build # builds web then server
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pnpm -C apps/server build # server only (tsc + copy schema.sql)
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pnpm -C apps/web build # web only (vite)
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# Type checking (no emit)
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npx tsc --noEmit # project references (root)
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npx tsc -p apps/web/tsconfig.app.json --noEmit # web app specifically
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# IMPORTANT: root tsc --noEmit uses project references and can miss errors
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# that the per-app tsconfig catches. Always verify with the per-app command
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# when editing web code. The server build (pnpm -C apps/server build) is
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# authoritative for server code.
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# Production
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docker compose build --no-cache boocode && docker compose up -d
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```
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There are no tests or linters configured.
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## Architecture
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**Monorepo**: pnpm workspaces with `apps/server` (Fastify + postgres) and `apps/web` (React + Vite).
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### Server (`apps/server/src/`)
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- **Fastify** with `@fastify/websocket` and `@fastify/static` (serves built frontend)
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- **postgres** (porsager/postgres) with tagged-template SQL — no ORM. Schema in `schema.sql`, applied on startup. LSP may false-positive on `sql<Type[]>\`...\`` generics; CLI `tsc` / `pnpm build` is authoritative.
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- **Zod** for request validation and config parsing.
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Key services:
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- **`services/inference.ts`** — Streams LLM responses, executes tool loops (max 5 depth), flushes to DB every 500ms. Publishes `InferenceFrame` events through the broker.
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- **`services/broker.ts`** — In-memory pub/sub with two channel types: per-session (message streaming) and per-user (sidebar updates). No persistence; clients reconnect on restart.
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- **`services/tools.ts`** — Four read-only file tools exposed as OpenAI function-calling schemas. All file access goes through `path_guard.ts` which resolves against project root.
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- **`services/file_ops.ts`** — Shared file operation implementations used by both inference tools and HTTP routes.
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- **`services/auto_name.ts`** — Non-streaming LLM call to generate 4-word session titles after first assistant reply.
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Route registration: all routes registered in `index.ts` via `register*Routes(app, sql, ...)` functions. Routes are in `routes/*.ts`.
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### Frontend (`apps/web/src/`)
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- **React 18** + React Router v6 + **Tailwind v4** + shadcn/radix-ui primitives.
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- **Shiki** for syntax highlighting (async `codeToHtml` in `CodeBlock.tsx` and `FileViewer` in `FileBrowserPane.tsx`).
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- Path alias: `@/` maps to `src/`.
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Key patterns:
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- **`hooks/sessionEvents.ts`** — Module-singleton event bus (Set of listeners). Used for cross-component communication: session renames, file-open events, attachment dispatch. 9 event types in the discriminated union. When adding a new event type to the `SessionEvent` union, you must also add a case to the `applyEvent` switch in `useSidebar.ts` (even if it's a no-op `return prev`).
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- **`hooks/useSessionStream.ts`** — WebSocket per session, `applyFrame` reducer builds message list from streaming frames.
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- **`hooks/useUserEvents.ts`** — Single app-level WS to `/api/ws/user` with exponential backoff reconnect. Forwards frames onto the sessionEvents bus.
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- **`hooks/usePanes.ts`** — Per-session pane CRUD with 300ms debounced state PATCH (Map-based coalescing for last-write-wins).
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- **`hooks/useSidebar.ts`** — Module-singleton with Set<setState> subscriber pattern. Handles all sessionEvent types to keep sidebar in sync.
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- **`api/client.ts`** — Centralized typed fetch wrapper. All endpoints under `api.*` namespace.
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### Data flow for chat
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1. User sends message → POST `/api/sessions/:id/messages` creates user + assistant (status=streaming) rows
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2. `inference.enqueue()` starts async streaming loop
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3. LLM deltas published via `broker.publish(sessionId, frame)`
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4. Client's `useSessionStream` WS receives frames, `applyFrame` reducer updates message list
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5. Tool calls: inference executes tools server-side, publishes tool_call/tool_result frames, loops back to LLM
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6. Terminal states (complete/error): DB updated with final content + token counts, `session_updated` frame published on user channel
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### Multi-pane workspace
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Sessions hold 1–5 panes (chat or file_browser). `Workspace.tsx` renders tab strip + CSS grid layout. Pane state persisted in `session_panes` table (position + JSONB state). Tab reorder via native HTML5 drag events.
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## Database
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PostgreSQL 16. Tables: `projects`, `sessions`, `messages`, `settings`, `session_panes`. Schema applied idempotently on startup via `applySchema()`. Use `clock_timestamp()` (not `NOW()`) inside transactions for accurate per-statement timestamps.
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Position-shift pattern for panes: negate-and-restore to avoid UNIQUE(session_id, position) collisions during reorder/insert/delete. Sentinel value -100 for the moving pane.
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## Environment
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Required: `DATABASE_URL`, `LLAMA_SWAP_URL`. Optional: `PORT` (3000), `HOST` (0.0.0.0), `PROJECT_ROOT_WHITELIST` (/opt), `DEFAULT_MODEL`, `LOG_LEVEL`.
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## Workflow
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- Sam reviews all diffs and commits manually. Do not commit unless explicitly asked.
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- Deploy: `cd /opt/boocode && docker compose build --no-cache boocode && docker compose up -d`
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- Don't accumulate `.bak-*` files. Clean them up in the same batch or immediately after merge.
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## Conventions
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- `overflowWrap` not `wordWrap` — TypeScript's CSSStyleDeclaration marks `wordWrap` as deprecated (error 6385).
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- No app-layer auth. Authelia handles auth at the reverse proxy. All `broker.publishUser`/`subscribeUser` calls use `'default'` as the user key.
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- TypeScript strict mode. Both apps share `tsconfig.base.json`.
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- Server uses NodeNext module resolution (`.js` extensions in imports).
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- Discriminated unions for type narrowing: `Pane` (by `kind`), `SessionEvent` (by `type`), `InferenceFrame` (by `type`).
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- shadcn primitives live in `components/ui/`. Don't modify them unless adding a new primitive.
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- `inferLanguage()` from `lib/attachments.ts` is the canonical file-extension-to-language map. `CodeBlock.tsx` keeps its own `LANG_MAP` because it also resolves markdown fence names.
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