Replay left the 3D pane on the rest mesh or a sparse overlay, and Analyze skipped the setup dialog unless the file was re-picked. Live Run no longer starts a chain on a video path. Verified with Studio tests for flush, overlay mask, Analyze open, live-video refusal, and locales.
Opening a recording while the session that recorded it was still live never reached
``stored_result()``, so the panel reported no result over a recording whose result was on
disk. The guard now follows the cache read, results move to the app's derived-data root
(swept at startup, the old in-recording root ignored), and the panel states which of the
four no-result states it is in, with the pass's own reason.
Verified: apps/studio 462/0/18, shared 431/0/1, autocal 358, ui_check 628/0, both gates
clean, real-GL snapshots per state.
Replay moved the cursor onto the result's timeline, so the recording's own
picture was not offered at all and ``use_recording()`` had no caller. Adopting a
result now keeps the cursor on the recording, opens the panel on a derived view,
and serves scrubs, playback and display changes from the cache (Part B §9).
Verified: apps/studio 455 items / 0 failed / 18 skipped, shared 427 / 0 / 1,
autocal 358, ui_check 628 checks / 0 failures, lint gate clean.
Replay re-ran the SDK chain on every seek; Part A's pass stores the flow
samples once. Opening a recording now reuses a compatible result or runs the
pass behind a progress/cancel surface, and one cursor with two modes
(recorded CSV, analysed) feeds the charts, the 2D canvas and the 3D pane by
frame id. A threshold, colour or idle-dot change redraws from the stored
frames and writes nothing; a cancelled pass is reported and never played.
Verified: apps/studio/tests 440 items / 0 failed / 18 skipped (15 new, no
existing assertion changed); shared 417 / 0 / 1; autocal 358.
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