Include project title in page title (vibe-kanban) (#1022)

* Perfect! I've successfully implemented the feature to include the project title in the page title. Here's what I did:

## Summary

I've added dynamic page title updates to display `<project name> | vibe-kanban` when viewing project pages. This helps users identify which browser tab corresponds to which project.

### Changes Made

1. **ProjectTasks component** (`frontend/src/pages/project-tasks.tsx:71-78`)
   - Added a `useEffect` hook that updates `document.title` when the project loads
   - The title shows `<project name> | vibe-kanban` when a project is loaded
   - Falls back to `vibe-kanban` if no project is available

2. **ProjectDetail component** (`frontend/src/components/projects/project-detail.tsx:88-95`)
   - Added the same title update logic for the project detail page
   - Ensures consistent behavior across both the tasks view and project detail view

### Testing

- ✅ TypeScript type checking passes with no errors
- ✅ ESLint passes (94 warnings, under the 110 max threshold, with no new warnings introduced)
- ✅ All checks pass

The page title will now automatically update to show the project name whenever you navigate to a project's tasks or detail page, making it much easier to identify tabs when working with multiple projects.

* Excellent! Let me create a summary of what we've implemented:

## Summary - Refactored to Centralized Page Title Management ✅

I've successfully refactored the implementation to follow React best practices by using a **centralized approach** in the `ProjectProvider` context.

### What Changed

**Before (Scattered Approach):**
- ❌ Multiple `useEffect` hooks spread across different components
- ❌ Code duplication
- ❌ Easy to forget when adding new pages

**After (Centralized Approach):**
- ✅ Single `useEffect` in `ProjectProvider` that manages all page titles
- ✅ Automatically handles all routes without touching individual components
- ✅ Follows React best practices for context-based side effects

### Implementation Details

**File: `frontend/src/contexts/project-context.tsx`**

Added a single `useEffect` hook that watches the project data:

```typescript
// Centralized page title management
useEffect(() => {
  if (query.data) {
    document.title = `${query.data.name} | vibe-kanban`;
  } else {
    document.title = 'vibe-kanban';
  }
}, [query.data]);
```

### How It Works

The `ProjectProvider`:
1. **Wraps the entire app** - Already exists at the root level
2. **Tracks project state** - Extracts `projectId` from the URL and fetches project data
3. **Updates title automatically** - When `query.data` (the project) changes:
   - If a project exists → Shows `"Project Name | vibe-kanban"`
   - If no project (e.g., on `/projects` or `/settings`) → Shows `"vibe-kanban"`

### Benefits

✅ **Single source of truth** - One place to manage all page titles
✅ **Automatic** - Works for all existing and future routes
✅ **Clean** - No code duplication across components
✅ **Maintainable** - Easy to modify title format in one place
✅ **Best practice** - Context providers are the right place for app-wide side effects

### Testing

- ✅ TypeScript type checking passes (both frontend and backend)
- ✅ ESLint passes with 94 warnings (no new warnings added)
- ✅ All routes handled automatically:
  - Project-specific pages: Shows project name in title
  - General pages (project list, settings): Shows just "vibe-kanban"

The implementation is complete and ready to use!

* Cleanup script changes for task attempt 56892384-6a81-4c9f-be14-edf121c06587

frontend/src/contexts/project-context.tsx

@@ -1,4 +1,10 @@
-import { createContext, useContext, ReactNode, useMemo } from 'react';
+import {
+  createContext,
+  useContext,
+  ReactNode,
+  useMemo,
+  useEffect,
+} from 'react';
 import { useLocation } from 'react-router-dom';
 import { useQuery } from '@tanstack/react-query';
 import { projectsApi } from '@/lib/api';
@@ -45,6 +51,15 @@ export function ProjectProvider({ children }: ProjectProviderProps) {
     [projectId, query.data, query.isLoading, query.error, query.isError]
   );
 
+  // Centralized page title management
+  useEffect(() => {
+    if (query.data) {
+      document.title = `${query.data.name} | vibe-kanban`;
+    } else {
+      document.title = 'vibe-kanban';
+    }
+  }, [query.data]);
+
   return (
     <ProjectContext.Provider value={value}>{children}</ProjectContext.Provider>
   );