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57cdaf7e4e
APK v4 — client-only (Android player). Brings the reference client up to the locked v4 liveness contract and fixes the "stuck downloading / offline in CMS" caching bug: - v4 liveness watchdog (LivenessWatchdog): half-open detection via server-silence, arm-ONLY-after device:heartbeat-ack (degrade-safe), 45s±10s jittered threshold, exp backoff 1/2/4/8/16→30s ±20%, no-poll; reconnect delegates to the #148 ConnectionGuard (teardown-before-reopen, single socket). - Caching two-root fix: callTimeout + .part+Content-Length integrity + atomic swap (CacheValidation), onPlayerError advance, re-ack cached content + reconnect re-ack. - Screen resilience (PlaylistSelection): a pending/failed download never blanks the screen — keep-current, swap only fully-valid content. - Reconnect-safe background downloads (DownloadCoordinator): single-flight per contentId + bounded pool + failure backoff + cancellation; a reconnect mid-fetch can't orphan/duplicate/storm. Refuse 206 partials. - v4 client identity block on register (client_type/version/platform/contract_version). Tests: 52 JVM unit tests (watchdog, cache validation, reproduce-then-prove download stall/truncation/reconnect-mid-download, screen selection, assembly soak). Depends on the server device:heartbeat-ack (core pass) — degrade-safe until then. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> |
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