diff --git a/CLAUDE.md b/CLAUDE.md
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+# CLAUDE.md
+
+This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.
+
+## Commands
+
+```bash
+# Development
+source ~/.nvm/nvm.sh && npm start          # Start Electron app with hot-reload
+
+# Build & Package
+source ~/.nvm/nvm.sh && npm run make       # Build distributable packages
+source ~/.nvm/nvm.sh && npm run package    # Package without making installers
+
+# Lint
+source ~/.nvm/nvm.sh && npm run lint       # ESLint over .ts/.tsx files
+
+# Database migrations (Drizzle)
+source ~/.nvm/nvm.sh && npx drizzle-kit generate   # Generate migration from schema changes
+source ~/.nvm/nvm.sh && npx drizzle-kit push        # Push schema directly (dev only)
+```
+
+There is no test suite currently.
+
+## Architecture Overview
+
+Adiuva is a local-first Electron desktop app. The three Electron processes communicate via a custom tRPC↔IPC bridge (the public `electron-trpc` package is incompatible with tRPC v11, so a custom implementation is used).
+
+### Process Boundaries
+
+```
+Renderer (React)  ──ipcLink──►  Preload (contextBridge)  ──IPC──►  Main (tRPC router + SQLite)
+```
+
+1. **Main process** (`src/main/`) — Node.js, owns the database and all business logic
+   - `index.ts` — Window creation, app lifecycle
+   - `ipc.ts` — Custom handler that bridges `ipcMain` to tRPC procedures
+   - `router/index.ts` — All tRPC routers (clients, projects, tasks, checkpoints, notes, settings, ai)
+   - `db/index.ts` — Drizzle + better-sqlite3, WAL mode, singleton `getDb()`
+   - `db/schema.ts` — All table definitions (clients, projects, tasks, checkpoints, notes)
+   - `store.ts` — electron-store for persistent UI settings (e.g., `sidebarCollapsed`)
+
+2. **Preload** (`src/preload/trpc.ts`) — Exposes `window.electronTRPC` with `sendMessage()` / `onMessage()`
+
+3. **Renderer** (`src/renderer/`) — React 19, never accesses Node APIs directly
+   - `lib/ipcLink.ts` — Custom TRPCLink that routes calls through `window.electronTRPC`
+   - `lib/trpc.ts` — `createTRPCReact<AppRouter>()` typed client
+   - `index.tsx` — QueryClient + tRPC + Router providers
+   - All data access is through `trpc.*.*useQuery()` / `trpc.*.*.useMutation()`
+
+### Routing
+
+File-based routing via TanStack Router. Add a file to `src/renderer/routes/` and the route tree (`src/renderer/routeTree.gen.ts`) is auto-regenerated by the Vite plugin on next `npm start`. Routes:
+- `__root.tsx` — Root layout wrapping everything in `AppShell`
+- `index.tsx`, `tasks.tsx`, `timeline.tsx`, `projects.tsx`
+
+### Database
+
+Schema lives in `src/main/db/schema.ts`. Migrations are in `src/main/db/migrations/`. The DB is created in Electron's `userData` directory as `adiuva.db`. On startup, `initDb()` runs non-destructive migrations (CREATE TABLE IF NOT EXISTS).
+
+To add a new table or column: edit `schema.ts`, run `drizzle-kit generate`, then `drizzle-kit push` (dev) or commit the migration file.
+
+### Adding a New Feature (end-to-end pattern)
+
+1. **Schema** — Add table/columns to `src/main/db/schema.ts`
+2. **Router** — Add a tRPC sub-router in `src/main/router/index.ts`, merge it into `appRouter`
+3. **Types** — `AppRouter` is exported from `src/main/router/index.ts` and imported in `src/renderer/lib/trpc.ts` — types flow automatically
+4. **UI** — Create components under `src/renderer/components/<feature>/`, use `trpc.*.*useQuery()` for data
+
+### Key Config Notes
+
+- Vite configs use `.mts` extension (not `.ts`) to avoid ESM/CJS conflicts with electron-forge's externalize-deps plugin
+- `@/*` path alias resolves to `src/renderer/*` (TypeScript + Vite + shadcn/ui all share this alias)
+- shadcn/ui style: **new-york**, base color: **neutral**
+- Icons: **lucide-react** throughout — do not introduce other icon libraries
+- Tailwind 4 (not 3) — use CSS variable theming via `globals.css`, not `tailwind.config.js`
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diff --git a/DEFAULT_PROMPT.md b/DEFAULT_PROMPT.md
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+## Your Task
+
+1. Read the full app PRD at `prd-main.md` (in the same directory as this file)
+2. Read the PRD at `prd.json` (in the same directory as this file)
+3. Read the progress log at `progress.txt` (check Codebase Patterns section first)
+4. **DO YOUR JOB**
+5. Update the PRD to set `passes: true` for the completed story
+6. Append your progress to `progress.txt`
+
+## Progress Report Format
+
+APPEND to progress.txt (never replace, always append):
+```
+## [Date/Time] - [Story ID]
+- What was implemented
+- Files changed
+- **Learnings for future iterations:**
+  - Patterns discovered (e.g., "this codebase uses X for Y")
+  - Gotchas encountered (e.g., "don't forget to update Z when changing W")
+  - Useful context (e.g., "the evaluation panel is in component X")
+---
+```
+
+## USER REQUEST
+{
+  "id": "US-014",
+  "title": "Kanban board in Project Detail",
+  "description": "As a user, I want a Kanban board inside the project detail view with drag-and-drop task management between status columns.",
+  "acceptanceCriteria": [
+    "@hello-pangea/dnd installed; DragDropContext wraps 3 Droppable columns: To Do | In Progress | Completed",
+    "Each task card is a Draggable wrapped in a shadcn/ui Card rendering: title, description (truncated), priority as shadcn/ui Badge, due date chip, assignee string",
+    "Dragging a card to another column calls tasks.update({ id, status }) via tRPC and the UI updates immediately (optimistic or on success)",
+    "'+ Add' shadcn/ui Button (variant=ghost, size=sm) in each column header opens the shadcn/ui Dialog new-task modal with the column's status pre-selected",
+    "Columns show a task count in their header using shadcn/ui Badge (variant=secondary)",
+    "All card content uses shadcn/ui primitives: Card, Badge, Button (already installed)",
+    "Typecheck passes",
+    "Verify in browser using dev-browser skill"
+  ],
+  "priority": 14,
+  "passes": false,
+  "notes": ""
+}
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