fix(mobile): don't offer share-to-story for a track with no audio

[dylanjeffers]

What happened

Michael reported that one specific link failed with "Sorry, something went wrong" when sharing to an Instagram story, while every other link worked.

That track has no audio. track_cid is null on the indexed row, so the stream endpoint 404s. Share-to-story builds a video out of the track's audio — it resolves the stream URL and passes it to ffmpeg as an input (-i ${streamMp3Url}). ffmpeg gets a 404 JSON body instead of an mp3, exits non-zero, and handleError shows the generic toast with no hint that the track itself is broken. Every other link he tried worked because those tracks had audio.

What this changes

Don't offer the story platforms for a track with nothing to play. AudiusProject/api#1032 makes the API report is_streamable: false for these rows, so isShareableTrack now excludes them — better than failing 60% of the way through a progress drawer. The check is an explicit !== false because not every track source populates the field, and an absent one must not hide the share options.

Guard the stream-URL step. signGatedContentRequest and getTrackStreamUrl were wrapped in nothing at all, and handleShare doesn't catch either — so a rejection there (a failed signature, an SDK that never initialized) escaped as an unhandled promise rejection: no toast, and the progress drawer left spinning with no way out but backing out of it. Now it goes through handleError like every other step, and the analytics error carries Error at resolve stream url step so the failing step is identifiable.

The two comment updates in packages/common bring the is_streamable docs in line with its widened meaning — it now also covers an upload indexed without its track_cid, not just deleted/deactivated.

Worth knowing

isTrackUnavailable reads the same flag, so once the API change lands, these tracks will render the "no longer available" screen on the track page instead of a dead player. That's intended, and transient for tracks the repair job in AudiusProject/api#1032 can fix.

Mobile ships via OTA and iOS OTA has been broken since the 1.5.186 build failed, so this is likely to reach iOS well after the server-side fixes land. The repair job closes the loop regardless of client version.

Testing

Lint clean on all four files; typecheck clean on the changed files. Not exercised on a device — the share-to-story path needs a real Instagram hand-off to test end to end.

🤖 Generated with Claude Code

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