[datlechin]

• SparkleAppcast reads https://updates.tablepro.app/appcast.xml and takes the item with no sparkle:channel and the highest sparkle:version, so a beta or a patch on an older line listed above it is skipped.
• platforms.json: architectures is ["arm64", "x86_64"], universalBinary is true, one assetTemplate TablePro-{version}.dmg, and the dmg URL template has no {arch}.
• MacRelease carries one asset. A cached or last-good copy with a DMG per architecture reads as missing, so the first request after deploy refreshes it.
• MacReleaseService accepts a GitHub release only with TablePro-{version}.dmg.
• Download page: one "Download for Mac" button, its file name, size and SHA-256. The architecture hint, "Which Mac do I have?" and navigator.userAgentData are gone.
• Compare pages: TablePro's platforms row says it runs natively on Apple silicon and Intel instead of separate builds.
• Copy in all 12 locales: the download page description, signing and older-versions lines, the unavailable notice and the FAQ Mac answer no longer mention two builds.
• Tests: fixtures model the new feed and release assets. PlatformsDataTest, MacReleaseServiceTest, DownloadPageTest, device.test.ts and compare-model.test.ts updated.
• mac.release stays 0.78.0: EnginesDataTest pins every engine's verified.macTag to it, so recording 0.82.0 needs the engines re-verified first. release:check reports that drift until then.