revert(hang): keep captions on dev

[kixelated]

Summary

• revert the caption and subtitle feature from main
• keep release PR chore: release #2562 semver-compatible by removing the public moq_mux::catalog::hang::Catalog::text field before release
• leave feat(hang): captions as standalone text tracks #2533 present on dev, where published API breaks are staged

The caption change added a public field to an externally constructible struct. Existing downstream struct literals would stop compiling, so the feature belongs on dev under the repository's branch-targeting policy. Once this revert lands, release-plz can regenerate #2562 without the moq-mux major bump and caption-driven downstream releases.

Public API changes

• removes the unreleased Catalog::text field and caption catalog types from main
• restores the latest published moq-mux catalog construction surface on main

Test plan

• just fix
• just check

(Written by GPT-5)

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Caution

Review failed

The pull request is closed.

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

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Run ID: 270e4faa-baf4-4628-8bac-6d08cb8a2ec9

📥 Commits

Reviewing files that changed from the base of the PR and between 5fd923f and a40c3e2.

⛔ Files ignored due to path filters (2)

• bun.lock is excluded by !**/*.lock
• js/watch/src/ui/icons/captions.svg is excluded by !**/*.svg

📒 Files selected for processing (34)

• doc/bin/cli.md
• doc/bin/gstreamer.md
• doc/concept/layer/hang.md
• drafts/draft-lcurley-moq-hang.md
• js/hang/src/catalog/index.ts
• js/hang/src/catalog/priority.ts
• js/hang/src/catalog/root.ts
• js/hang/src/catalog/text.ts
• js/publish/src/broadcast.ts
• js/publish/src/rendition.ts
• js/watch/package.json
• js/watch/src/element.ts
• js/watch/src/index.ts
• js/watch/src/text/index.ts
• js/watch/src/text/renderer.test.ts
• js/watch/src/text/renderer.ts
• js/watch/src/text/source.ts
• js/watch/src/ui/components/captions-button.ts
• js/watch/src/ui/components/captions.ts
• js/watch/src/ui/components/control-bar.ts
• js/watch/src/ui/components/settings-panel.ts
• js/watch/src/ui/icons.ts
• js/watch/src/ui/state.ts
• rs/hang/src/catalog/mod.rs
• rs/hang/src/catalog/priority.rs
• rs/hang/src/catalog/root.rs
• rs/hang/src/catalog/text/format.rs
• rs/hang/src/catalog/text/mod.rs
• rs/moq-gst/src/sink/imp.rs
• rs/moq-gst/src/sink/pad.rs
• rs/moq-mux/src/catalog/consumer.rs
• rs/moq-mux/src/catalog/hang/ext.rs
• rs/moq-mux/src/catalog/mod.rs
• rs/moq-mux/src/catalog/tracks.rs

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Walkthrough

Removed text-track support across the catalog specification and implementations. JavaScript and Rust catalog APIs no longer define text sections, priorities, or rendition types. Publishing, muxing, and GStreamer paths now process only audio and video. Watch caption sources, renderers, controls, settings, icons, exports, tests, and dependency were removed. Related CLI, GStreamer, conceptual, and specification documentation was updated.

✨ Finishing Touches

✨ Simplify code

• Create PR with simplified code
• Commit simplified code in branch codex/revert-captions-main

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