test: Add comprehensive test suite for piemenus.js module with 96 tests

[anshukaushik4700]

Summary

Added a comprehensive test suite for piemenus.js module covering all pie menu functions and their behavior. The test file validates module structure, wheel navigation, event handling, and integration with the audio and DOM systems.
Increased tests from 71 to 96.

Test Summary

Category Tests

• Module Structure (18)
• Exported Functions (1)
• Early Return Conditions (9)
• Wheel Navigation Components (6)
• Platform Color Integration (4)
• Audio Preview Functionality (5)
• Selection Change Handlers (4)
• Exit Menu Functionality (4)
• Wheel Positioning (5)
• Tooltip Support (3)
• Music Theory Integration (4)
• Block Context Menu (3)
• Grid Menu (3)
• Resize Handling (2)
• DOM Element Management (5)
• Wheel Configuration (5)
• Navigation Functions (2)
• Event Handler Setup (2)
• Global State Management (6)
• Function Organization (5)

Total Tests: 96

Test Results

✅ 96 tests passing
✅ 0 failures
✅ Static analysis approach (appropriate for browser-dependent module)

Command: npm test piemenus.test.js --coverage

PR Category

• Bug Fix
• Performance
• Features
• Tests
• Documentation

[github-actions]

✅ All Jest tests passed! This PR is ready to merge.

[anshukaushik4700]

@walterbender @omsuneri ready for review.

[github-actions]

❌ Some Jest tests failed. Please check the logs and fix the issues before merging.

Failed Tests:

GraphicsBlocks.test.js

[github-actions]

❌ Some Jest tests failed. Please check the logs and fix the issues before merging.

Failed Tests:

GraphicsBlocks.test.js

[anshukaushik4700]

Regarding the GraphicsBlocks.test.js CI failure — I haven't touched that file at all. I tested it locally and it appears to be a pre-existing issue in the test file itself, unrelated to my changes.
i fixed this issue in the PR #6167