feat: execute post-baseline jetstream parity plan

docs/plans/2026-02-23-jetstream-remaining-parity-verification.md

@@ -56,3 +56,52 @@ Result:
 - `MonitorClusterEndpointTests.Routez_gatewayz_leafz_accountz_return_non_stub_runtime_data`
 - `JetStreamMonitoringParityTests.Jsz_and_varz_include_expanded_runtime_fields`
 - `JetStreamIntegrationMatrixTests.Integration_matrix_executes_real_server_scenarios`
+
+## Post-Baseline Gate (2026-02-23)
+
+Command:
+
+```bash
+dotnet test tests/NATS.Server.Tests --filter "FullyQualifiedName~JetStream|FullyQualifiedName~Raft|FullyQualifiedName~Route|FullyQualifiedName~Gateway|FullyQualifiedName~Leaf|FullyQualifiedName~Account" -v minimal
+```
+
+Result:
+
+- Passed: `130`
+- Failed: `0`
+- Skipped: `0`
+- Duration: `~15s`
+
+Command:
+
+```bash
+dotnet test -v minimal
+```
+
+Result:
+
+- Passed: `786`
+- Failed: `0`
+- Skipped: `0`
+- Duration: `~1m 36s`
+
+Focused post-baseline evidence:
+
+- `InterServerAccountProtocolTests.Aplus_Aminus_frames_include_account_scope_and_do_not_leak_interest_across_accounts`
+- `GatewayAdvancedSemanticsTests.Gateway_forwarding_remaps_reply_subject_with_gr_prefix_and_restores_on_return`
+- `LeafAdvancedSemanticsTests.Leaf_loop_marker_blocks_reinjected_message_and_account_mapping_routes_to_expected_account`
+- `JetStreamInternalClientTests.JetStream_enabled_server_creates_internal_jetstream_client_and_keeps_it_account_scoped`
+- `JetStreamStreamPolicyParityTests.Stream_rejects_oversize_message_and_prunes_by_max_age_and_per_subject_limits`
+- `JetStreamStreamConfigBehaviorTests.Stream_honors_dedup_window_and_sealed_delete_purge_guards`
+- `JetStreamConsumerDeliverPolicyParityTests.Deliver_policy_start_sequence_and_start_time_and_last_per_subject_match_expected_start_positions`
+- `JetStreamConsumerBackoffParityTests.Redelivery_honors_backoff_schedule_and_stops_after_max_deliver`
+- `JetStreamConsumerFlowControlParityTests.Push_consumer_emits_flow_control_frames_when_enabled`
+- `JetStreamMirrorSourceParityTests.Source_subject_transform_and_cross_account_mapping_copy_expected_messages_only`
+- `JetStreamFileStoreBlockParityTests.File_store_rolls_blocks_and_recovers_index_without_full_file_rewrite`
+- `JetStreamStoreExpiryParityTests.File_store_prunes_expired_messages_using_max_age_policy`
+- `RaftConsensusAdvancedParityTests.Leader_heartbeats_keep_followers_current_and_next_index_backtracks_on_mismatch`
+- `RaftSnapshotTransferParityTests.Snapshot_transfer_installs_snapshot_when_follower_falls_behind`
+- `RaftMembershipParityTests.Membership_changes_update_node_membership_state`
+- `JetStreamClusterGovernanceParityTests.Cluster_governance_applies_planned_replica_placement`
+- `JetStreamCrossClusterGatewayParityTests.Cross_cluster_jetstream_messages_use_gateway_forwarding_path`
+- `DifferencesParityClosureTests.Differences_md_has_no_remaining_jetstream_baseline_or_n_rows`