feat(streaming): buffer resilience and automatic reconnection

- Construct the audio player with an enlarged live-stream buffer (15-50s forward cushion, 2.5s to start, 5s after rebuffer) so short network drops play through silently
- Add reconnect-on-stall state machine with bounded exponential backoff (1/2/4/8/16s, ~90s total window, 5 attempts) that re-prepares to the live edge; backoff/decision logic extracted to controlador_reconexion.dart as pure testable code
- Surface a new reconnecting playback state in the mini player and full player (localized in all 13 locales) instead of error dialogs during the retry window; a single friendly error appears only after exhaustion
- Guard interplay: user pause/stop cancels retries, audio interruptions cancel reconnect, alarm wake-up path keeps precedence, recording fails cleanly during drops
- Reset retry budget on station change; route stream timeouts through the network-error class
- 10 new tests (99 total green), flutter analyze clean

This commit is contained in:

FreeTLab

2026-06-11 19:54:30 +02:00

parent 079e19f0ee

commit 0380bbb1e7

38 changed files with 743 additions and 38 deletions

									
										lib/l10n/gen/app_localizations_ja.dart
									
		+3
		
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				@@ -895,6 +895,9 @@ class AppLocalizationsJa extends AppLocalizations {

				  @override

				  String get playbackStatusPaused => '一時停止中';

				  @override

				  String get playbackStatusReconnecting => '再接続中...';

				  @override

				  String get playbackStatusConnectionError => '接続エラー';