A note's status says "Shipped in <release>", or "Shipped on <date>" until a release includes it #5412

Replaces #5221: the same done, started fresh from main. Its two tries went red on tests it never touched (pillars, preview-spec), and this waits for their fixes.

Done:

• [ ] When a note's issue is closed by a merged pull that a release then includes, the note panel says "Shipped in <release name>", read from the forge's releases (src/release/record.ts).
• [ ] When the pull is merged but in no release yet, it says "Shipped on <date>".
• [ ] Tests (beside the note panel's existing tests in test/apps-feedback.test.ts): a note whose fix is in a release shows the release's name; one merged but unreleased shows the date. Each fails without the change.
• [ ] Before pushing, run those tests and bun x tsc --noEmit. A red test elsewhere that main also has is named in the pull, not a reason to stop.

Files: src/apps/feedback.ts (the status), the panel in src/apps/proxy.ts only if it renders the words, and the test. Phone layout is #5222, which waits for this.