Improve ForesightJS project quality and developer experience

[Copilot]

This PR addresses several areas for improvement in the ForesightJS project to enhance code quality, documentation, and developer experience.

Changes Made

🔧 Code Quality Improvements

• Fixed TypeScript linting errors in test-setup.ts by replacing explicit any types with proper type annotations
  • Used PointerEventInit instead of any for PointerEvent constructor parameters
  • Replaced as any with as unknown as typeof for better type safety
• Added missing test:run script to root package.json that was referenced in CONTRIBUTING.md but didn't exist

📚 Documentation Enhancements

• Completed Vue.js integration documentation with comprehensive examples:
  • Basic usage with Vue 3 Composition API
  • Vue Router integration patterns for route prefetching
  • Reusable composable hook (useForesight) for easy integration
  • Updated both current and versioned (v3.3) documentation
• Enabled framework integration links in QuickStart component for Vue.js and Angular
• Fixed typos in README files ("ofcourse" → "of course")

🎯 User Experience Improvements

• Made framework integrations more discoverable by enabling previously commented-out links
• Provided practical, copy-paste examples for Vue.js developers
• Aligned documentation with actual available npm scripts

Impact

• All builds, tests, and linting now pass cleanly
• Vue.js developers can now easily integrate ForesightJS with clear, working examples
• Framework integrations are more prominent and accessible in the documentation
• Development workflow is improved with proper test scripts matching the contributing guidelines
• Overall documentation quality is enhanced

The changes are minimal and surgical, focusing on real value-add improvements without breaking existing functionality.

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