End-to-end workflow for modernizing a UI5 application. Use this skill when:
- User wants to modernize their UI5 app
- User mentions "UI5 modernization", "modernize UI5 app", "upgrade UI5", "make app modern UI5 compatible"
- User asks to "fix all linter errors", "run full modernization", "modernize my UI5 project"
This skill runs the modernization in five phases with a verification gate after each phase. The user picks the verification mode once at the start (full autonomous / half autonomous / manual). The agent applies that mode at every gate without re-asking.
