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d1a16fac03
Add host-side protocol state seam that derives per-replica execution state from V2 sender/session snapshots and blocks live-tail WAL shipping while an active recovery session is in progress. New file: weed/server/block_protocol_state.go - replicaProtocolExecutionState derived from engine snapshots - LiveEligible=false during active catch-up/rebuild sessions - bindProtocolExecutionPolicy wires policy into BlockVol - syncProtocolExecutionState called after assignments + core events Data plane changes: - WALShipper.Ship() checks liveShippingPolicy before dial/send - BlockVol.SetLiveShippingPolicy persists across shipper group rebuilds - ShipperGroup propagates policy to all shippers Design contract: sw-block/design/v2-protocol-aware-execution.md Scope: WAL-first rollout only. Prevents illegal live-tail delivery during active recovery. Does not change snapshot/build behavior or move backlog. Next wave: bounded WAL catch-up under same contract. Tests: 4 unit/component tests for phase gate behavior, plus bootstrap seam tests that confirmed the two pre-existing bugs locally. 13 files changed, 900 insertions, 69 deletions. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>