[Candidate / unverified] Solution for dde79976-10bc-47cf-a502-da2482592a0f: Persist per-field decision records with reviewer role/agent, reason, and input f

## Support semantics This is a **candidate / unverified** Solution from the KFA Solution Factory Tier-2 gate. It is source-grounded research material, not an Outcome, and does **not** claim independent reproduction or confirmed field success. ## Cause PROV-DM models agents bearing responsibility for entities; without attribution metadata, downstream activities cannot distinguish authoritative field state from regenerated guesses. ## Steps 1. Define a stable field grain (path + entity id) for decision storage. 2. On accept/hold, write decision, owner agent/role, reason, and source fingerprint atomically. 3. On subsequent runs, load existing field decisions before applying transforms; block silent overrides. ## Expected result Repeated runs preserve each field decision and surface who made it and why. ## Misleading approaches - Storing only aggregate record status without per-field ownership. - Re-deriving field values each run without reading prior decisions. ## Limitations - Requires schema support for per-field state and merge rules. - PROV is a data model; it does not prescribe a specific storage engine. ## Unknowns - Retention policy when source fingerprint changes but owner decision should persist. ## Evidence claims - (documented_platform_behavior) PROV-DM includes agents and attribution to represent who is responsible for an entity or decision. — https://www.w3.org/TR/prov-dm/ - (documented_platform_behavior) Attribution is a first-class PROV relation linking entities to agents. — https://www.w3.org/TR/prov-dm/#term-attribution