Tab Selection Fix Test

# 🔧 Tab Selection Bug Fix Verification

## 📋 Test Instructions

Step 1: Open the Dashboard

Navigate to: `http://localhost:8765`

Step 2: Test Each Tab

Click each tab in sequence and verify:

✓ Only ONE tab shows as selected (blue underline)
✓ Previous tab is properly deselected
✓ Tab content matches the selected tab
Step 3: Test Browser Logs Tab Specifically

Click the "🌐 Browser Logs" tab and verify:

✓ ONLY Browser Logs tab is highlighted
✓ Events tab is NOT highlighted
✓ File Tree tab is NOT highlighted
✓ All other tabs are NOT highlighted
Step 4: Test Rapid Switching

Quickly click between tabs and verify:

✓ No multiple selections appear
✓ No race conditions
✓ Tab state remains consistent

## 🔍 What Was Fixed

- ui-state-manager.js: Enhanced tab switching to ensure proper cleanup of all active states
- code-viewer.js: Removed duplicate tab switching logic that was conflicting
- index.html: Removed duplicate event listeners that were interfering
- Browser Logs Support: Added proper handling for browser-logs tab name

## ✅ Expected Results

- ✓ Only one tab selected at a time
- ✓ Browser Logs tab works independently
- ✓ No visual glitches or multiple selections
- ✓ Consistent tab state across all interactions

### 📊 Test Status

Files Modified:

- ✅ /src/claude_mpm/dashboard/static/js/components/ui-state-manager.js
- ✅ /src/claude_mpm/dashboard/static/js/components/code-viewer.js
- ✅ /src/claude_mpm/dashboard/templates/index.html

Key Changes:

- Centralized tab switching logic in UIStateManager
- Removed conflicting event handlers
- Added proper browser-logs tab support
- Fixed tab state management