Reconciles two independently-developed lines from base 006d3d0:
ours — M9/M10 community layers, retroactive purge + re-materialization,
signal revocation, agent capability boundaries, P1 feedback loop,
reason labels, instrumented metrics
theirs — M11/M12 cluster mode (tidal-net gRPC transport, tidal-server
cluster/scatter-gather, tidal-stress), multi-vector preference,
ANN candidate-gen, warm-tier day buckets, keyed signal snapshots
Notable semantic resolutions:
* storage::keys::Tag — both sides allocated 0x0E..0x11 for different
records. Kept theirs' 0x0E..0x1A (shipped on-disk format) and renumbered
ours to 0x1B..0x1E (CommunityMembership/Revocation/PurgeManifest/
CommunityLeave); Tag::ALL grown to 30 so the contiguity drift guard holds.
* ranking executor — took theirs' rewrite (SignalReadPlan pre-pass, keyed
SignalKey snapshots, Result-returning reads, finalize()) and re-applied
ours' M10 read suppression at the chokepoints it introduced:
single_signal_score, score_hot/trending/controversial,
CreatorEngagementRate, and the Stage-4 boost loop.
* signals::warm — theirs' day-bucket/read-time-rotation rewrite, with ours'
subtract_bucket and Clone extended to the new day tier; ours' test split
kept (warm/tests.rs, warm/proptests.rs) carrying theirs' updated bodies.
* db::signals — kept ours' contribution-logging try_cohort_attribution in
signal_dispatch.rs and theirs' event-time try_update_preference_vector;
dropped the superseded duplicates.
* db::mod / from_parts — theirs' constructors, with ours' purge/
re-materialization/revocation/community/skip-counter fields and restart
rebuilds; from_parts kept in its own file per the 600-line guideline.
* schema::validation::builders — ours' module split with theirs' expanded
tests; policy validation runs both sides' checks (read-signal lists +
profile overrides, then the zero-duration limit guard).
* feedback Unhide no longer writes a -1.0 "hide" signal: theirs' engine
rejects negative weights (spec §8). Reverses index state only, matching
every other undo action.
* SessionState::new is now the single construction path (gains
overrides_rejected/default_profile); AuditEntry gains kind on the
deserialize path, inferred from the accepted flag as before.
* Removed tidal/src/replication/tcp_transport.rs and its test: never
declared in replication/mod.rs on either branch, so it had never
compiled and nothing referenced it. Superseded by tidal-net's
GrpcTransport.
Verified: cargo clippy -p tidaldb (lib) clean; --all-targets compiles for
tidaldb/tidal-net/tidal-server/tidal-stress; 2094/2094 lib tests and the
integration suite pass except m8p3_reconcile_production's two CRDT-count
assertions, which fail identically on MERGE_HEAD (pre-existing).
tidalctl cannot build locally: its aws-sdk deps need rustc 1.91.1, local
toolchain is 1.91.0.
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