[datlechin]

Summary

• The About panel's credits list, under "Thanks to these license holders", the people who bought a license and said yes by email to being named. With nobody listed the credits are unchanged.
• apple/TablePro/Resources/Supporters.json is the only copy of the list. A name goes in or comes out through a pull request, spelled the way its owner gave it. It ships empty; names follow once buyers answer.
• AboutPanelCredits moves out of AppDelegate+MainMenuActions.swift into its own file with the list's loader. A missing or unreadable file logs and shows no names, rather than failing the panel.
• The heading is translated for fr, ko, tr, vi, zh-Hans and zh-Hant through Xcode's export and import.
• Monetization roadmap task R1.7 (tablepro-cloud docs/monetization-roadmap.md).

Test plan

• AboutPanelCreditsTests: names follow the project links, an empty list adds nothing, blank entries and stray spaces are dropped, and the shipped Supporters.json decodes. 4 cases pass with verify.sh test; lint is clean.