[ai] NBA library services + public API

Repo: · Issue: #986 Status: Open · Priority: P2 Assignee: Unassigned

Description

Implement library-first services for:

  • recommendations ranking (with rule-based fallback + determinism)
  • action template generation (guardrails)
  • document intelligence discrepancies
  • triage re-ranking
  • feedback ingestion Expose stable entrypoints (functions/classes) for backend callers.

Implementation Notes

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