04 - Builder / Current Plan V4 Audit

Verdict: PLAN_FINGERPRINT_INCOMPLETE.

Current plan hash equals v4 composite, but builder refresh is transitively based on fn_dot_birth_qt001_plan_v2. Builder accepts arbitrary plan_id, uses max(version)+1 without serialization, code CASE policy, and lossy NULL-to-zero checksum. Fingerprint v4 omits signoff state and capability v4 evidence, uses old scale guard, incomplete trigger fingerprint, mutable snapshot scope, manual blocker inventory, and legacy-produced policy. Live contradiction: fingerprint null_component_rows=6 while null guard pass=true.