feat: port 258-patch changes to main for IDE preview support @W-20141594@

[nrkruk]

What does this PR do?

This PR ports functional changes from the 258-patch branch to main, focusing on improvements for IDE-based component preview and VSCode/Code Builder integration.

Key Changes:

• Added new metaUtils.ts utility for auto-enabling Lightning Preview in orgs
• Enhanced lightning dev component command with:
  • --api-version flag for API version override
  • Auto-enable local dev support (via AUTO_ENABLE_LOCAL_DEV env var)
  • VSCode/Code Builder proxy support (via SF_CONTAINER_MODE and VSCODE_PROXY_URI env vars)
  • Improved return type with ComponentPreviewResult for better JSON output
• Added generateComponentPreviewUrl() helper method in previewUtils
• Removed lightning-base-components dependency from lwc.config.json
• Updated GitHub workflow to promote version 4 to 'latest' tag
• Updated command snapshot for new flag

These changes enable better integration with IDEs (especially VSCode/Code Builder) and provide the foundation for fixing single component preview from IDE environments.

What issues does this PR fix or reference?

@W-20141594@