Per-server web_server.py globals (plex_client / jellyfin_client /
navidrome_client / soulsync_library_client) are gone. The engine now
owns the per-server client instances; web_server.py constructs them
inline into the engine init and routes everything through
media_server_engine.client('<name>').
Multi-client consumers refactored to take the engine instead of
separate per-server kwargs:
- services/sync_service.py: PlaylistSyncService.__init__ now takes
media_server_engine. Internal _get_active_media_client resolves the
active server's client through self._engine.client(name) instead of
the per-server self.X_client attributes.
- core/listening_stats_worker.py: ListeningStatsWorker takes
media_server_engine. The plex/jellyfin/navidrome dispatch in _poll
collapses to engine.client(active_server) (gated to those three
servers — SoulSync standalone has no listening data).
- core/web_scan_manager.py: WebScanManager takes media_server_engine
instead of the hand-keyed media_clients dict that drifted out of
sync with the engine.
- core/discovery/sync.py: SyncDeps holds media_server_engine instead
of plex_client / jellyfin_client. Playlist-image dispatch routes
through engine.client(name).
Web_server.py:
- Per-server globals removed from the chained `= None` init line
+ their try/except construction blocks. Replaced with a
_safe_init_media_client(factory, name) helper that captures
per-server init failures + passes the resulting clients straight
into the MediaServerEngine init dict.
- All construction sites (PlaylistSyncService, WebScanManager,
ListeningStatsWorker, SyncDeps, library_check) updated to receive
the engine instead of per-server clients.
Test fixtures (tests/discovery/test_discovery_sync.py) gain a
_FakeMediaServerEngine stub + the SyncDeps build helper passes
that instead of separate plex/jellyfin clients.
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