jx12n
6a937fc4bc
feat(m12): multi-vector user preference modeling + ANN candidate-gen
Add multi-vector preference entity (per-signal-type preference vectors with
event-time decay) feeding ANN candidate generation in the query executor.
- entities: multi_preference vectors + event-time-aware preference updates
- query/executor: ANN candidate-gen + personalization/pipeline integration
- storage/keys, db ops, state_rebuild: persist & rebuild multi-vector prefs
- ranking: profile + builtins support for multi-vector scoring
- tidal-server/config: expose multi-preference knobs
- tests/bench: m12_preference_event_time integration + multi_preference bench
- docs: multi-vector-preference research, ROADMAP/ARCHITECTURE refresh,
legal/tidaldb-patent-proposal
- .codex/agents: codex agent definitions
- chore: gitignore tool-regenerated .agents/ mirror (doc-guard rejects it)