A response cancelled before or during body consumption completed as a successful empty body, so cancellation-triggered aggregation could overwrite valid state and a cancelled download could commit an empty file. The managed client now delivers an abort error, and a request whose own abort has fired classifies secondary teardown errors as cancelled (timeouts keep their type). A Plex server whose /hubs leg failed was also counted as succeeded when only the optional music leg returned, letting Discover replace good hubs with a music-only result.
Several pairs of near-identical code paths differ in one load-bearing
line. Each site now carries a comment naming the invariant that forces it
apart, backed by a characterization test so a future deduplication fails
loudly instead of silently changing behaviour.
Pinned: focusable wrapper vs. chip D-pad activation policy, profile
connection cleanup's raw-id vs. ServerId-typed server projections, live TV
tab loaders, video player display matching and playback service wiring,
track selection container ordering, tracker HTTP client status ladder, and
the MediaServerHttpClient shutdown/cancellation contract versus
ManagedHttpClient's closing guard.
New tests:
test/focus/dpad_activation_policy_test.dart
test/services/track_selection_container_ordinal_test.dart
test/services/trackers/tracker_status_ladder_test.dart
test/utils/media_server_http_client_shutdown_test.dart
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