[WIP] Update dependencies to latest major versions for security

[Copilot]

• Analyze current dependencies and identify outdated packages
• Verify current build works before making changes
• Update vite from ^6.3.6 to ^7.2.6 (major update)
• Update @vitejs/plugin-vue from ^5.2.4 to ^6.0.2 (major update)
• Update vue-tsc from ^2.2.12 to ^3.1.5 (major update)
• Update @types/node from ^22.18.10 to ^24.10.1 (major update)
• Update vue from ^3.5.22 to ^3.5.25 (patch update)
• Update vitepress from 2.0.0-alpha.12 to ^1.6.4 (stable release)
• Check for vulnerabilities in updated dependencies
• Run build and verify all packages work correctly
• Run code review and security scan

Original prompt

Update to deps to latest major versions to prevent security leaks

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Project	Deployment	Preview	Comments	Updated (UTC)
vue-quilly	Ready	Preview	Comment	Dec 1, 2025 10:14am
vue-quilly-docs	Ready	Preview	Comment	Dec 1, 2025 10:14am