Tracking: upstream features not yet exposed in the phone UI

[CodeSculptor]

Umbrella issue tracking upstream SmartTube features / capabilities not yet exposed in the phone (stmobile) UI. Use this to coordinate which gaps get closed next.

Done since opened

• ✅ Native channel content tabs (Videos / Shorts / Live / Playlists) — shipped v0.4.2-beta.7+st31.94.
• ✅ Voice search (mic button in the search toolbar) — shipped; tracked in Voice search not implemented (keyboard search only) #8 (closed).

Open gaps

• Casting / Chromecast — engine plumbing exists upstream, not wired into the phone UI. → Casting / Chromecast not available in the phone UI #7
• Channel sort chips (Latest / Popular / Oldest) — upstream exposes them separately from the content tabs; the native channel page doesn't surface them yet.
• Per-card-type layouts for the Shorts / Playlists channel tabs — they currently reuse the 16:9 landscape video card.
• (add more as found)