test(interop): a real Loops, both ways, on every PR — and three federation fixes

[karlitschek]

A real Loops (v1.0.0-beta.14) joins the interop suite as its own job (.github/workflows/interop-loops.yml), running on every pull request, every push to master, weekly and by hand.

Green against the real Loops: run 37587612514.

Class	Tests
LoopsDeliveryTest	11 (1 skipped: Loops files a remote answer to a comment as a new comment on the video)
LoopsInboundTest	13 (1 skipped: Loops never delivers an Update for a profile)

Covered both ways: follows, videos with caption and poster, likes and unlikes, comments threaded under the video, hashtags, edits, deletes and unfollows. A failed run prints both sides' logs and queues, every request through the proxy, and what Loops' own validators make of our last activities.

App defects found and fixed here

1. An actor Update was not addressed to the public and the followers, so Loops dropped profile changes.
2. A reply did not name the author it answers among its recipients.
3. A document's transcode and ladder state was not read back from the database.

The fourth defect the suite found — posts going out with no url, which broke likes and comments on our videos on Loops — was merged separately as #2503.

Full PHPUnit, psalm, php-cs-fixer, eslint, stylelint, vue-tsc and vitest green locally.

Written with the help of Claude Code (Claude Opus 5.5); every commit carries an Assisted-by trailer.

🤖 Generated with Claude Code

Summary by CodeRabbit

• Bug Fixes

  • Improved ActivityPub federation by preserving post page URLs, addressing actor updates to the appropriate audience, and including the parent author when delivering replies.
  • Ensured cached document queries include all relevant document details.

• Tests

  • Added automated interoperability checks for video and post delivery, follows, reactions, comments, edits, deletions, and profile updates with Loops.
  • Added scheduled and on-demand checks for federation behavior.

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📒 Files selected for processing (14)

• .github/workflows/interop-loops.yml
• lib/Db/CacheDocumentsRequestBuilder.php
• lib/Model/ActivityPub/Stream.php
• lib/Service/ActivityService.php
• lib/Service/StreamService.php
• tests/Db/CacheDocumentsSelectColumnsTest.php
• tests/Interop/LocalAccount.php
• tests/Interop/Loops.php
• tests/Interop/LoopsDeliveryTest.php
• tests/Interop/LoopsInboundTest.php
• tests/Interop/LoopsPairing.php
• tests/Model/ActivityPub/StreamTest.php
• tests/Service/ActivityServiceTest.php
• tests/Service/StreamServiceTest.php

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