[westernCasa]

B88. Media moments: save a section of a video or audio page, with its captions, as a card.

The keys (your choice: both ways)

• ⌘⇧K (View → Save Moment: Start / End, or right-click a video): the first press marks the start and playback goes on. The second marks the end, saves the moment and pauses.
• With a loop set (B70, ⌘⇧L), one ⌘⇧K saves the loop's range.
• ⌘⇧J (Save the Last 30 Seconds): saves the 30 seconds up to now and pauses. Change the times on the card afterwards if needed.
• No video or audio, a private tab, or an opened (read-only) trail: a notice, nothing saved.

The moment card (your choice: a card next to the page)

• Goes next to the page's card (the page becomes a card if it wasn't), with a grey "moment from" line.
• Shows "Moment · site", the title, the times, and the captions shown during it when the site had captions (text tracks, YouTube and Vimeo captions; up to 1,200 characters).
• Click the times to change them: type 41:12–42:30, Enter.
• Play (or double-click): opens the page, or its open tab, at the start and loops the range.
• Ask for ID (your choice): adds a question "ID at 41:12?" with a "raises" line from the moment. Others answer it in replies, in NODE or in the shared file.

Elsewhere

• Timeline: "Moment 41:12–42:30 · title".
• Replay: "You saved a moment of “…”, 41:12 to 42:30."
• Trail files: ### [Title](page) · moment 41:12–42:30 with the captions as a quoted line (doc 26). Still node-trail: 2.
• Search past trails (B89) finds moments by their captions or the word "moment".

Also in this PR: the B62 row now says Mac signing is done and the passkey entitlement is waiting on Apple (docs only).

Code

• core/page-scripts.js: momentScript; loopScript op range (video or audio).
• core/trail.js: momentCard, momentTimes (event edited), card kind moment. core/trail-file.js, core/replay.js, core/recall.js: the file format, the caption, search.
• main.js: saveMoment, menu items, tab:moment, trail:moment-play, trail:moment-times, trail:moment-id.
• renderer/canvas.js, app.js, styles.css: the card, the timeline label. Tokens only.

Not in this PR: the Chromium build.

Tests

• test/moment-demo.js (npm run test:moment, in test:unit): 7 checks.
• New test/e2e/52-media-moments.js (17 checks), in both CI e2e lists. Its test page loads the video into memory so it can seek, since the test server can't serve parts of a file.
• Locally: test:unit, and e2e 10, 25, 34, 42, 43, 44, 48 and 51 still pass.

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