# TaskTracker Web UI Redesign — Implementation Plan

> **For Claude:** REQUIRED SUB-SKILL: Use superpowers:executing-plans to implement this plan task-by-task.

**Goal:** Replace the vanilla JS SPA with a React Kanban board app featuring rich analytics, subtask management, time estimates, and search/filters.

**Architecture:** Separate Vite+React project (`TaskTracker.Web`) calling the existing ASP.NET API at `localhost:5200`. Two small API changes needed first (time estimate field, task update endpoint). Frontend uses TanStack Query for server state, dnd-kit for drag-and-drop, Recharts for analytics.

**Tech Stack:** React 19, TypeScript, Vite, Tailwind CSS, @dnd-kit, @tanstack/react-query, react-router-dom, Recharts, Axios, lucide-react

**Design doc:** `docs/plans/2026-02-26-web-ui-redesign-design.md`

---

## Task 1: API — Add EstimatedMinutes field and Update endpoint

The React UI needs two things the API doesn't have yet: a time estimate field on tasks, and a general-purpose update endpoint for inline editing.

**Files:**
- Modify: `TaskTracker.Core/Entities/WorkTask.cs`
- Modify: `TaskTracker.Core/DTOs/CreateTaskRequest.cs`
- Create: `TaskTracker.Core/DTOs/UpdateTaskRequest.cs`
- Modify: `TaskTracker.Api/Controllers/TasksController.cs`
- Modify: `TaskTracker.Infrastructure/Data/AppDbContext.cs` (if migration needed)

**Step 1: Add EstimatedMinutes to WorkTask entity**

In `TaskTracker.Core/Entities/WorkTask.cs`, add:
```csharp
public int? EstimatedMinutes { get; set; }
```

**Step 2: Add EstimatedMinutes to CreateTaskRequest**

In `TaskTracker.Core/DTOs/CreateTaskRequest.cs`, add:
```csharp
public int? EstimatedMinutes { get; set; }
```

**Step 3: Create UpdateTaskRequest DTO**

Create `TaskTracker.Core/DTOs/UpdateTaskRequest.cs`:
```csharp
namespace TaskTracker.Core.DTOs;

public class UpdateTaskRequest
{
    public string? Title { get; set; }
    public string? Description { get; set; }
    public string? Category { get; set; }
    public int? EstimatedMinutes { get; set; }
}
```

**Step 4: Wire EstimatedMinutes in TasksController.Create**

In `TasksController.cs`, update the `Create` method's `new WorkTask` block to include:
```csharp
EstimatedMinutes = request.EstimatedMinutes,
```

**Step 5: Add PUT update endpoint to TasksController**

Add to `TasksController.cs`:
```csharp
[HttpPut("{id:int}")]
public async Task<IActionResult> Update(int id, [FromBody] UpdateTaskRequest request)
{
    var task = await taskRepo.GetByIdAsync(id);
    if (task is null)
        return NotFound(ApiResponse.Fail("Task not found"));

    if (request.Title is not null) task.Title = request.Title;
    if (request.Description is not null) task.Description = request.Description;
    if (request.Category is not null) task.Category = request.Category;
    if (request.EstimatedMinutes.HasValue) task.EstimatedMinutes = request.EstimatedMinutes;

    await taskRepo.UpdateAsync(task);
    return Ok(ApiResponse<WorkTask>.Ok(task));
}
```

**Step 6: Create and apply EF migration**

Run:
```bash
cd TaskTracker.Infrastructure
dotnet ef migrations add AddEstimatedMinutes --startup-project ../TaskTracker.Api
dotnet ef database update --startup-project ../TaskTracker.Api
```

**Step 7: Verify with Swagger**

Run the API (`dotnet run --project TaskTracker.Api`) and test the new PUT endpoint at `/swagger`.

**Step 8: Commit**

```bash
git add TaskTracker.Core/Entities/WorkTask.cs TaskTracker.Core/DTOs/CreateTaskRequest.cs TaskTracker.Core/DTOs/UpdateTaskRequest.cs TaskTracker.Api/Controllers/TasksController.cs TaskTracker.Infrastructure/
git commit -m "feat: add EstimatedMinutes field and general PUT update endpoint for tasks"
```

---

## Task 2: Scaffold React project with Vite + Tailwind

**Files:**
- Create: `TaskTracker.Web/` (entire project scaffold)

**Step 1: Create Vite React TypeScript project**

```bash
cd C:/Users/AJ/Desktop/Projects/TaskTracker
npm create vite@latest TaskTracker.Web -- --template react-ts
```

**Step 2: Install dependencies**

```bash
cd TaskTracker.Web
npm install axios @tanstack/react-query react-router-dom @dnd-kit/core @dnd-kit/sortable @dnd-kit/utilities recharts lucide-react
npm install -D tailwindcss @tailwindcss/vite
```

**Step 3: Configure Tailwind**

Replace `TaskTracker.Web/src/index.css` with:
```css
@import "tailwindcss";
```

Add Tailwind plugin to `TaskTracker.Web/vite.config.ts`:
```typescript
import { defineConfig } from 'vite'
import react from '@vitejs/plugin-react'
import tailwindcss from '@tailwindcss/vite'

export default defineConfig({
  plugins: [react(), tailwindcss()],
  server: {
    port: 5173,
    proxy: {
      '/api': {
        target: 'http://localhost:5200',
        changeOrigin: true,
      },
    },
  },
})
```

**Step 4: Clean up scaffold**

- Delete `src/App.css`, `src/assets/`
- Replace `src/App.tsx` with a minimal placeholder:

```tsx
function App() {
  return <div className="bg-[#0f1117] min-h-screen text-white p-8">
    <h1 className="text-2xl font-semibold">TaskTracker</h1>
  </div>
}
export default App
```

- Replace `src/main.tsx`:

```tsx
import { StrictMode } from 'react'
import { createRoot } from 'react-dom/client'
import './index.css'
import App from './App'

createRoot(document.getElementById('root')!).render(
  <StrictMode>
    <App />
  </StrictMode>,
)
```

**Step 5: Verify it runs**

```bash
npm run dev
```

Open `http://localhost:5173` — should see "TaskTracker" on a dark background.

**Step 6: Commit**

```bash
git add TaskTracker.Web/
git commit -m "feat: scaffold TaskTracker.Web with Vite, React, TypeScript, Tailwind"
```

---

## Task 3: TypeScript types + API client + TanStack Query provider

**Files:**
- Create: `TaskTracker.Web/src/types/index.ts`
- Create: `TaskTracker.Web/src/api/client.ts`
- Create: `TaskTracker.Web/src/api/tasks.ts`
- Create: `TaskTracker.Web/src/api/context.ts`
- Create: `TaskTracker.Web/src/api/mappings.ts`
- Modify: `TaskTracker.Web/src/main.tsx`

**Step 1: Create TypeScript types matching the API**

Create `TaskTracker.Web/src/types/index.ts`:
```typescript
export enum WorkTaskStatus {
  Pending = 0,
  Active = 1,
  Paused = 2,
  Completed = 3,
  Abandoned = 4,
}

export enum NoteType {
  PauseNote = 0,
  ResumeNote = 1,
  General = 2,
}

export interface WorkTask {
  id: number
  title: string
  description: string | null
  status: WorkTaskStatus
  category: string | null
  createdAt: string
  startedAt: string | null
  completedAt: string | null
  estimatedMinutes: number | null
  parentTaskId: number | null
  subTasks: WorkTask[]
  notes: TaskNote[]
  contextEvents: ContextEvent[]
}

export interface TaskNote {
  id: number
  workTaskId: number
  content: string
  type: NoteType
  createdAt: string
}

export interface ContextEvent {
  id: number
  workTaskId: number | null
  source: string
  appName: string
  windowTitle: string
  url: string | null
  timestamp: string
}

export interface AppMapping {
  id: number
  pattern: string
  matchType: string
  category: string
  friendlyName: string | null
}

export interface ContextSummaryItem {
  appName: string
  category: string
  eventCount: number
  firstSeen: string
  lastSeen: string
}

export interface ApiResponse<T> {
  success: boolean
  data: T
  error: string | null
}
```

**Step 2: Create Axios client**

Create `TaskTracker.Web/src/api/client.ts`:
```typescript
import axios from 'axios'
import type { ApiResponse } from '../types'

const api = axios.create({ baseURL: '/api' })

export async function request<T>(config: Parameters<typeof api.request>[0]): Promise<T> {
  const { data } = await api.request<ApiResponse<T>>(config)
  if (!data.success) throw new Error(data.error ?? 'API error')
  return data.data
}

export default api
```

**Step 3: Create task API hooks**

Create `TaskTracker.Web/src/api/tasks.ts`:
```typescript
import { useQuery, useMutation, useQueryClient } from '@tanstack/react-query'
import { request } from './client'
import type { WorkTask } from '../types'

export function useTasks(includeSubTasks = true) {
  return useQuery({
    queryKey: ['tasks', { includeSubTasks }],
    queryFn: () => request<WorkTask[]>({ url: '/tasks', params: { includeSubTasks } }),
  })
}

export function useActiveTask() {
  return useQuery({
    queryKey: ['tasks', 'active'],
    queryFn: () => request<WorkTask | null>({ url: '/tasks/active' }),
    refetchInterval: 30_000,
  })
}

export function useTask(id: number) {
  return useQuery({
    queryKey: ['tasks', id],
    queryFn: () => request<WorkTask>({ url: `/tasks/${id}` }),
  })
}

function useInvalidateTasks() {
  const qc = useQueryClient()
  return () => {
    qc.invalidateQueries({ queryKey: ['tasks'] })
  }
}

export function useCreateTask() {
  const invalidate = useInvalidateTasks()
  return useMutation({
    mutationFn: (body: { title: string; description?: string; category?: string; parentTaskId?: number; estimatedMinutes?: number }) =>
      request<WorkTask>({ method: 'POST', url: '/tasks', data: body }),
    onSuccess: invalidate,
  })
}

export function useUpdateTask() {
  const invalidate = useInvalidateTasks()
  return useMutation({
    mutationFn: ({ id, ...body }: { id: number; title?: string; description?: string; category?: string; estimatedMinutes?: number }) =>
      request<WorkTask>({ method: 'PUT', url: `/tasks/${id}`, data: body }),
    onSuccess: invalidate,
  })
}

export function useStartTask() {
  const invalidate = useInvalidateTasks()
  return useMutation({
    mutationFn: (id: number) => request<WorkTask>({ method: 'PUT', url: `/tasks/${id}/start` }),
    onSuccess: invalidate,
  })
}

export function usePauseTask() {
  const invalidate = useInvalidateTasks()
  return useMutation({
    mutationFn: ({ id, note }: { id: number; note?: string }) =>
      request<WorkTask>({ method: 'PUT', url: `/tasks/${id}/pause`, data: { note } }),
    onSuccess: invalidate,
  })
}

export function useResumeTask() {
  const invalidate = useInvalidateTasks()
  return useMutation({
    mutationFn: ({ id, note }: { id: number; note?: string }) =>
      request<WorkTask>({ method: 'PUT', url: `/tasks/${id}/resume`, data: { note } }),
    onSuccess: invalidate,
  })
}

export function useCompleteTask() {
  const invalidate = useInvalidateTasks()
  return useMutation({
    mutationFn: (id: number) => request<WorkTask>({ method: 'PUT', url: `/tasks/${id}/complete` }),
    onSuccess: invalidate,
  })
}

export function useAbandonTask() {
  const invalidate = useInvalidateTasks()
  return useMutation({
    mutationFn: (id: number) => request<void>({ method: 'DELETE', url: `/tasks/${id}` }),
    onSuccess: invalidate,
  })
}
```

**Step 4: Create context API hooks**

Create `TaskTracker.Web/src/api/context.ts`:
```typescript
import { useQuery } from '@tanstack/react-query'
import { request } from './client'
import type { ContextEvent, ContextSummaryItem } from '../types'

export function useRecentContext(minutes = 30) {
  return useQuery({
    queryKey: ['context', 'recent', minutes],
    queryFn: () => request<ContextEvent[]>({ url: '/context/recent', params: { minutes } }),
    refetchInterval: 60_000,
  })
}

export function useContextSummary() {
  return useQuery({
    queryKey: ['context', 'summary'],
    queryFn: () => request<ContextSummaryItem[]>({ url: '/context/summary' }),
    refetchInterval: 60_000,
  })
}
```

**Step 5: Create mappings API hooks**

Create `TaskTracker.Web/src/api/mappings.ts`:
```typescript
import { useQuery, useMutation, useQueryClient } from '@tanstack/react-query'
import { request } from './client'
import type { AppMapping } from '../types'

export function useMappings() {
  return useQuery({
    queryKey: ['mappings'],
    queryFn: () => request<AppMapping[]>({ url: '/mappings' }),
  })
}

export function useCreateMapping() {
  const qc = useQueryClient()
  return useMutation({
    mutationFn: (body: { pattern: string; matchType: string; category: string; friendlyName?: string }) =>
      request<AppMapping>({ method: 'POST', url: '/mappings', data: body }),
    onSuccess: () => qc.invalidateQueries({ queryKey: ['mappings'] }),
  })
}

export function useUpdateMapping() {
  const qc = useQueryClient()
  return useMutation({
    mutationFn: ({ id, ...body }: { id: number; pattern: string; matchType: string; category: string; friendlyName?: string }) =>
      request<AppMapping>({ method: 'PUT', url: `/mappings/${id}`, data: body }),
    onSuccess: () => qc.invalidateQueries({ queryKey: ['mappings'] }),
  })
}

export function useDeleteMapping() {
  const qc = useQueryClient()
  return useMutation({
    mutationFn: (id: number) => request<void>({ method: 'DELETE', url: `/mappings/${id}` }),
    onSuccess: () => qc.invalidateQueries({ queryKey: ['mappings'] }),
  })
}
```

**Step 6: Add QueryClientProvider to main.tsx**

```tsx
import { StrictMode } from 'react'
import { createRoot } from 'react-dom/client'
import { QueryClient, QueryClientProvider } from '@tanstack/react-query'
import './index.css'
import App from './App'

const queryClient = new QueryClient({
  defaultOptions: { queries: { staleTime: 10_000, retry: 1 } },
})

createRoot(document.getElementById('root')!).render(
  <StrictMode>
    <QueryClientProvider client={queryClient}>
      <App />
    </QueryClientProvider>
  </StrictMode>,
)
```

**Step 7: Verify compilation**

```bash
cd TaskTracker.Web && npm run build
```

Expected: clean build with no errors.

**Step 8: Commit**

```bash
git add TaskTracker.Web/src/types/ TaskTracker.Web/src/api/ TaskTracker.Web/src/main.tsx
git commit -m "feat: add TypeScript types, API client, and TanStack Query hooks"
```

---

## Task 4: Layout shell — sidebar, top bar, routing

**Files:**
- Create: `TaskTracker.Web/src/components/Layout.tsx`
- Create: `TaskTracker.Web/src/pages/Board.tsx` (placeholder)
- Create: `TaskTracker.Web/src/pages/Analytics.tsx` (placeholder)
- Create: `TaskTracker.Web/src/pages/Mappings.tsx` (placeholder)
- Modify: `TaskTracker.Web/src/App.tsx`

**Step 1: Create Layout component**

Create `TaskTracker.Web/src/components/Layout.tsx` with:
- Collapsible sidebar (60px collapsed, 200px expanded) with gradient background
- Nav items: Board (LayoutGrid icon), Analytics (BarChart3 icon), Mappings (Link icon)
- Top bar with app title and SearchBar placeholder
- `<Outlet />` for page content
- Use `lucide-react` for icons
- Use `react-router-dom` `NavLink` with active styling (indigo highlight)

**Step 2: Create placeholder pages**

Each page as a simple component with just a heading, e.g.:
```tsx
export default function Board() {
  return <div><h1 className="text-xl font-semibold text-white">Board</h1></div>
}
```

**Step 3: Wire up routing in App.tsx**

```tsx
import { BrowserRouter, Routes, Route, Navigate } from 'react-router-dom'
import Layout from './components/Layout'
import Board from './pages/Board'
import Analytics from './pages/Analytics'
import Mappings from './pages/Mappings'

export default function App() {
  return (
    <BrowserRouter>
      <Routes>
        <Route element={<Layout />}>
          <Route path="/" element={<Navigate to="/board" replace />} />
          <Route path="/board" element={<Board />} />
          <Route path="/analytics" element={<Analytics />} />
          <Route path="/mappings" element={<Mappings />} />
        </Route>
      </Routes>
    </BrowserRouter>
  )
}
```

**Step 4: Verify navigation works**

Run `npm run dev`. Click sidebar links — URL changes and placeholder pages render.

**Step 5: Commit**

```bash
git add TaskTracker.Web/src/
git commit -m "feat: add layout shell with sidebar navigation and routing"
```

---

## Task 5: Kanban board — columns, cards, drag-and-drop

This is the core feature. Build it incrementally.

**Files:**
- Create: `TaskTracker.Web/src/lib/constants.ts` (colors, status labels)
- Create: `TaskTracker.Web/src/components/KanbanColumn.tsx`
- Create: `TaskTracker.Web/src/components/TaskCard.tsx`
- Create: `TaskTracker.Web/src/components/KanbanBoard.tsx`
- Modify: `TaskTracker.Web/src/pages/Board.tsx`

**Step 1: Create constants for status/category config**

Create `TaskTracker.Web/src/lib/constants.ts`:
```typescript
import { WorkTaskStatus } from '../types'

export const COLUMN_CONFIG = [
  { status: WorkTaskStatus.Pending, label: 'Pending', color: '#94a3b8' },
  { status: WorkTaskStatus.Active, label: 'Active', color: '#06b6d4' },
  { status: WorkTaskStatus.Paused, label: 'Paused', color: '#f59e0b' },
  { status: WorkTaskStatus.Completed, label: 'Completed', color: '#10b981' },
] as const

export const CATEGORY_COLORS: Record<string, string> = {
  Development: '#6366f1',
  Research: '#06b6d4',
  Communication: '#8b5cf6',
  DevOps: '#f97316',
  Documentation: '#14b8a6',
  Design: '#ec4899',
  Unknown: '#64748b',
}
```

**Step 2: Build TaskCard component**

Create `TaskTracker.Web/src/components/TaskCard.tsx`:
- Renders task title, category badge (color-coded from `CATEGORY_COLORS`), elapsed time
- If `estimatedMinutes` set, show progress bar (elapsed / estimated)
- If task has subtasks, show "N/M done" indicator
- Active task gets a pulsing cyan border (`animate-pulse` or custom keyframe)
- Colored left border matching category
- Uses `useSortable` from dnd-kit for drag handle
- `onClick` prop to open detail panel

**Step 3: Build KanbanColumn component**

Create `TaskTracker.Web/src/components/KanbanColumn.tsx`:
- Column header with status label + count + colored underline
- Uses `useDroppable` from dnd-kit
- Renders list of `TaskCard` components
- "Pending" column has "+ Add Task" button at bottom
- Visual drop indicator when dragging over

**Step 4: Build KanbanBoard component**

Create `TaskTracker.Web/src/components/KanbanBoard.tsx`:
- `DndContext` + `SortableContext` from dnd-kit wrapping the columns
- `useTasks()` hook to fetch all tasks
- Groups tasks by status into columns
- `onDragEnd` handler that:
  - Determines source/target column
  - Maps column transitions to API calls (start/pause/resume/complete)
  - Blocks invalid transitions (e.g., moving to Pending)
  - Shows error toast on failure
- Filters out subtasks from board (only show top-level tasks, `parentTaskId === null`)

**Step 5: Wire Board page**

Update `TaskTracker.Web/src/pages/Board.tsx` to render `<KanbanBoard />` and pass an `onTaskClick` callback that opens the detail panel (wired in Task 6).

**Step 6: Verify board renders with real data**

Start the API (`dotnet run --project TaskTracker.Api`), then `npm run dev`. Create a few tasks via Swagger, verify they show in the correct columns. Test drag-and-drop transitions.

**Step 7: Commit**

```bash
git add TaskTracker.Web/src/
git commit -m "feat: implement Kanban board with drag-and-drop task management"
```

---

## Task 6: Task detail slide-over panel

**Files:**
- Create: `TaskTracker.Web/src/components/TaskDetailPanel.tsx`
- Create: `TaskTracker.Web/src/components/SubtaskList.tsx`
- Create: `TaskTracker.Web/src/components/NotesList.tsx`
- Modify: `TaskTracker.Web/src/pages/Board.tsx`

**Step 1: Build TaskDetailPanel**

Create `TaskTracker.Web/src/components/TaskDetailPanel.tsx`:
- Slide-over panel from right (~400px), board dimmed behind with semi-transparent overlay
- Fetches task detail via `useTask(id)`
- Sections:
  - **Header**: Title (click to edit inline, blur to save via `useUpdateTask`), status badge, category dropdown
  - **Description**: Click-to-edit text area, saves on blur
  - **Time**: Show elapsed time. Input for estimated minutes, saves on blur. Progress bar if estimate set.
  - **Subtasks**: `<SubtaskList />` component
  - **Notes**: `<NotesList />` component
  - **Actions**: Context-aware buttons — Start/Pause/Resume/Complete/Abandon based on current status
- Close on Escape keypress or overlay click
- Animate slide-in/out with CSS transition

**Step 2: Build SubtaskList**

Create `TaskTracker.Web/src/components/SubtaskList.tsx`:
- Renders `task.subTasks` as checkboxes
- Checking a subtask calls `useCompleteTask()` on it
- "+" button at top shows inline text input → `useCreateTask()` with `parentTaskId`
- Shows subtask status (completed = strikethrough + checkmark)

**Step 3: Build NotesList**

Create `TaskTracker.Web/src/components/NotesList.tsx`:
- Renders `task.notes` chronologically
- Each note shows: type badge (PauseNote/ResumeNote/General), content, relative timestamp
- "+" button shows inline text input → `POST /api/tasks/{id}/notes` with type General

**Step 4: Wire panel into Board page**

In `Board.tsx`:
- Add `selectedTaskId` state
- Pass `onTaskClick={(id) => setSelectedTaskId(id)}` to `KanbanBoard`
- Render `<TaskDetailPanel taskId={selectedTaskId} onClose={() => setSelectedTaskId(null)} />` when set

**Step 5: Verify full workflow**

Test: click card → panel opens → edit title → add subtask → add note → change status → close panel. All changes persist.

**Step 6: Commit**

```bash
git add TaskTracker.Web/src/
git commit -m "feat: add task detail slide-over panel with inline editing, subtasks, and notes"
```

---

## Task 7: Create task form

**Files:**
- Create: `TaskTracker.Web/src/components/CreateTaskForm.tsx`
- Modify: `TaskTracker.Web/src/components/KanbanColumn.tsx`

**Step 1: Build CreateTaskForm**

Create `TaskTracker.Web/src/components/CreateTaskForm.tsx`:
- Inline form that expands in the Pending column when "+ Add Task" is clicked
- Fields: Title (required), Description (optional textarea), Category (dropdown from known categories), Estimated Minutes (optional number)
- Submit calls `useCreateTask()`
- Escape or click away cancels
- Auto-focus title input on open

**Step 2: Wire into Pending column**

Modify `KanbanColumn.tsx`:
- When column is Pending, show "+ Add Task" button
- On click, toggle showing `<CreateTaskForm />` at bottom of column
- On submit/cancel, hide the form

**Step 3: Verify**

Create a task via the inline form. It should appear in the Pending column immediately.

**Step 4: Commit**

```bash
git add TaskTracker.Web/src/
git commit -m "feat: add inline create task form in Pending column"
```

---

## Task 8: Search bar + board filters

**Files:**
- Create: `TaskTracker.Web/src/components/SearchBar.tsx`
- Create: `TaskTracker.Web/src/components/FilterBar.tsx`
- Modify: `TaskTracker.Web/src/components/Layout.tsx`
- Modify: `TaskTracker.Web/src/pages/Board.tsx`

**Step 1: Build SearchBar**

Create `TaskTracker.Web/src/components/SearchBar.tsx`:
- Input with search icon (lucide `Search`)
- On typing, filters tasks client-side (title + description match)
- Results shown as dropdown list of matching tasks
- Click result → opens TaskDetailPanel (via callback prop)
- Keyboard navigation: arrow keys to move, Enter to select, Escape to close
- Debounce input by 200ms

**Step 2: Build FilterBar**

Create `TaskTracker.Web/src/components/FilterBar.tsx`:
- Row of filter chips rendered below the board header
- Category chips: derived from unique categories across all tasks + mappings
- "Has subtasks" toggle chip
- Active filters shown as colored chips with "x" to dismiss
- Exposes `filters` state and `filteredTasks` computation to parent

**Step 3: Wire SearchBar into Layout**

Add `<SearchBar />` to the top bar in `Layout.tsx`. It needs access to task data — use `useTasks()` inside the component.

**Step 4: Wire FilterBar into Board page**

In `Board.tsx`, add `<FilterBar />` above the `<KanbanBoard />`. Pass filtered tasks down to the board instead of all tasks. Lift task fetching up to `Board.tsx` and pass tasks as props to both `FilterBar` and `KanbanBoard`.

**Step 5: Verify**

- Type in search bar → dropdown shows matching tasks
- Click category chip → board filters to that category
- Combine filters → board shows intersection

**Step 6: Commit**

```bash
git add TaskTracker.Web/src/
git commit -m "feat: add global search bar and board filter chips"
```

---

## Task 9: Analytics page — timeline, charts, activity feed

**Files:**
- Create: `TaskTracker.Web/src/components/analytics/Timeline.tsx`
- Create: `TaskTracker.Web/src/components/analytics/CategoryBreakdown.tsx`
- Create: `TaskTracker.Web/src/components/analytics/ActivityFeed.tsx`
- Modify: `TaskTracker.Web/src/pages/Analytics.tsx`

**Step 1: Build Analytics page shell**

Update `TaskTracker.Web/src/pages/Analytics.tsx`:
- Filter bar at top: time range dropdown (Today/7d/30d), task filter dropdown
- Time range maps to `minutes` param for `/context/recent` (1440 for today, 10080 for 7d, 43200 for 30d)
- Three sections stacked vertically: Timeline, Category Breakdown, Activity Feed

**Step 2: Build Timeline component**

Create `TaskTracker.Web/src/components/analytics/Timeline.tsx`:
- Recharts `BarChart` with custom rendering
- X-axis: time of day (hourly buckets)
- Bars: colored by category (from mappings)
- Tooltip on hover: app name, window title, duration
- Uses `useRecentContext()` data, groups events into time buckets

**Step 3: Build CategoryBreakdown component**

Create `TaskTracker.Web/src/components/analytics/CategoryBreakdown.tsx`:
- Left side: Recharts `PieChart` (donut style with inner radius)
- Right side: list of categories with horizontal bar, time, percentage
- Uses `useContextSummary()` data
- Colors from `CATEGORY_COLORS` constant

**Step 4: Build ActivityFeed component**

Create `TaskTracker.Web/src/components/analytics/ActivityFeed.tsx`:
- Reverse-chronological list of context events
- Each row: colored category dot, relative timestamp, app name (bold), window title/URL
- "Load more" button at bottom (increase `minutes` param or paginate client-side)
- Uses `useRecentContext()` with the selected time range

**Step 5: Verify analytics page**

Need some context data — either run WindowWatcher/Chrome extension to generate real data, or POST a few test events via Swagger. Verify all three visualizations render.

**Step 6: Commit**

```bash
git add TaskTracker.Web/src/
git commit -m "feat: add analytics page with timeline, category breakdown, and activity feed"
```

---

## Task 10: Mappings page

**Files:**
- Modify: `TaskTracker.Web/src/pages/Mappings.tsx`

**Step 1: Build Mappings page**

Update `TaskTracker.Web/src/pages/Mappings.tsx`:
- Table with columns: Pattern, Match Type, Category (color badge), Friendly Name, Actions (edit/delete)
- Uses `useMappings()` to fetch data
- "+ Add Rule" button at top → inserts inline form row at top of table
- Form fields: Pattern (text), Match Type (dropdown: ProcessName/TitleContains/UrlContains), Category (text), Friendly Name (text)
- Submit → `useCreateMapping()`
- Edit button → row becomes editable inline → save → `useUpdateMapping()`
- Delete button → confirm dialog → `useDeleteMapping()`

**Step 2: Verify CRUD**

Create a mapping, edit it, delete it. Verify all operations work.

**Step 3: Commit**

```bash
git add TaskTracker.Web/src/
git commit -m "feat: add mappings page with inline CRUD table"
```

---

## Task 11: Visual polish and animations

**Files:**
- Modify: Various component files for animation/transition polish
- Modify: `TaskTracker.Web/index.html` (add Inter font)

**Step 1: Add Inter font**

In `TaskTracker.Web/index.html`, add to `<head>`:
```html
<link rel="preconnect" href="https://fonts.googleapis.com">
<link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
<link href="https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap" rel="stylesheet">
```

Add to `index.css` (inside `@theme`):
```css
@theme {
  --font-sans: 'Inter', sans-serif;
}
```

**Step 2: Add animations**

- Active task card: glowing cyan border pulse (CSS `@keyframes` animation)
- Detail panel: slide-in from right with opacity transition
- Drag-and-drop: smooth card movement via dnd-kit's built-in transitions
- Hover effects: subtle card lift with colored shadow
- Column drop target: border highlight on drag-over

**Step 3: Polish visual details**

- Sidebar gradient background
- Colored left border on task cards
- Category badge colors consistent everywhere
- Column header colored underlines
- Colored-tint shadows on cards (not plain gray)
- Consistent spacing and typography

**Step 4: Verify visual quality**

Walk through every page and interaction. Check dark background rendering, color contrast, animation smoothness.

**Step 5: Commit**

```bash
git add TaskTracker.Web/
git commit -m "feat: add visual polish — Inter font, animations, colored shadows, hover effects"
```

---

## Task 12: Final integration testing and cleanup

**Step 1: Full workflow test**

Run both the API and the React dev server. Walk through the complete workflow:
1. Create a task from the board
2. Start it (drag or button)
3. Add a subtask, complete it
4. Add a note
5. Set time estimate, verify progress bar
6. Pause with note, resume
7. Complete the task
8. Check analytics page
9. Add/edit/delete a mapping
10. Test search and filters
11. Test sidebar collapse/expand

**Step 2: Fix any issues found**

Address bugs or visual issues found during testing.

**Step 3: Clean up**

- Remove any unused imports or dead code
- Ensure no console warnings in browser
- Verify `npm run build` produces a clean production build

**Step 4: Commit**

```bash
git add -A
git commit -m "chore: final cleanup and integration testing"
```