light-base: add lifecycle_unstable_follow RPC subscription - #3317
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…ss + stall-to-stall Recovered
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This was referenced Aug 5, 2026
…in lifecycle-follow dispatch
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Summary
lifecycle_unstable_follow/lifecycle_unstable_unfollowJSON-RPC methods, sharing the 32-byte bs58 subscription-id format used bytransactionWatch_v1_submitAndWatchandbitswap_unstable_stream.LifecycleServicebroadcaster with a 128-event history for late subscribers and a bounded per-subscriber channel sized against replay so a snapshot burst cannot silently kill the subscription before it is registered for live delivery.LifecycleEventvariants (Connecting,FirstPeer,ModeDecision,WarpSyncProgress,WarpSyncFinished,BootstrapComplete,Stalled) with matching JSON schema and docstrings on both sides.light-base/src/lib.rsthat translatesync_serviceandnetwork_service_chainsignals into lifecycle events, plus a one-shot stall watchdog.background_tasksFuturesUnorderedwith map-lookup unsubscribe-race handling, mirroring thetransactionWatchandbitswapidioms.