Recover quickly from LG capture revocation without clearing recent colors

docs/publishing-review.md

@@ -55,3 +55,11 @@ A second live disconnect test confirmed retryScheduled:true while Hyperion was u
 The default-off Auto PicCap switch stores its preference in the own service container. If enabled, it uses the installed PicCap service's existing start/stop/status methods; it does not rewrite PicCap settings or its autostart hook. Only foreground media decoder resources without `SVP_CPB` are eligible, after two samples. Any secure resource or unknown/stale state restores the histogram path. VT capture is released and HyperDRM priority cleared before starting PicCap; stopped status is required before histogram capture resumes. Manual Stop pauses both managed paths. Shutdown attempts to stop a managed PicCap session before unregistering; a forced kill or unresponsive external service cannot guarantee this cleanup.
 
 On the G4, playback-classification and isolated controller tests passed: secure/clear/unknown states, mixed pipelines, malformed records, two-sample gating, exclusive transitions, manual Stop, disabling handover and timeout cancellation. The fifth control passed remote-navigation regression tests. Version 0.7.0 was installed and elevated; with Disney+ playing, enabling handover reported protected playback, maintained histogram color output and left PicCap stopped. The test preference was restored to off. Live handover was then verified with the user's unprotected test video: PicCap reported videoRunning:true and connected:true, and Hyperion selected its visible FlatBuffer input at priority 150 with spatial output for the current 120-LED layout. Disabling handover stopped PicCap and restored histogram output. Re-enabling handover and switching back to DRM automatically stopped PicCap and restored HyperDRM as Hyperion's visible priority-149 source. The preference was restored to off after the complete test.
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+## Capture blackout diagnosis and recovery (0.7.1)
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+A live 0.7.0 observation reproduced the reported blackout while Auto PicCap was disabled and PicCap was stopped. LG revoked histogram capture; the controller cleared priority 149 and waited five seconds before reinitializing. Hyperion LED-stream measurements recorded an all-black interval of approximately 4.9 seconds. WLED was reachable and reported an active DDP stream from the TV; no WLED settings were changed.
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+Version 0.7.1 preserves the last update's existing 1.5-second expiry during a revocation recovery, instead of explicitly clearing it. Initialization retries begin after 200 ms with two additional 400 ms retry intervals before returning to normal five-second pacing. This does not extend stale colors indefinitely. Explicit capture stops and PicCap handovers retain their clear behavior. Status records recovery count and elapsed initialization time.
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+ARM retry and handover regression tests passed on the G4, as did remote navigation tests. Version 0.7.1 was installed and elevated on the TV. A later actual LG revocation recovered in 762 ms, including one refused initialization attempt before success. A 55-second Hyperion observation contained 125 color samples with no all-black output. These measurements do not guarantee that prolonged LG capture unavailability or actual black video scenes cannot darken the LEDs.