IP-319 Delivery Phase Handoff

• Phase: delivery
• Status: complete
• Scope: IP-319, including child stories IP-330 and IP-331
• Artifacts: SPEC.md, PLAN.md, IMPLEMENTATION-NOTES.md, and /docs/cli/validation/behavior-contract-validation
• Pull request: draft PR #76, unmerged
• Proven implementation: T1-T9; 12 participating workspaces, 11 testable workspaces, 20 classified seams, eight adapter families, two identical 14/14 repeat runs, and valid cleanup
• Repeat evidence: .reports/behavior-contract/repeat-session-3b3dcb3c-6797-4dbf-9597-9becdc5784a9.json; 31.427 and 30.944 seconds
• Review state: final findings-first review PASS
• Docs state: private/internal artifacts are complete through the routed CLI validation flow, Harness validation concept, source bookkeeping, and root docs; targeted formatting and git diff --check pass, while repository-wide sync/check remain red on pre-existing routed-spec and unrelated formatting baselines
• UI evidence: no production UI change in T10; existing T6 browser evidence remains authoritative
• Acceptance decision: the last pushed-head behavior-contract CI at fabd4b23 was red from bounded clean-checkout assumptions plus unrelated or stale scaffold baseline/hash drift; per maintainer direction, no further investigation or global/CI gate was run, and the existing T1-T9, final review, and routed docs evidence was accepted
• Next route: record the accepted evidence on Linear IP-330, IP-331, and IP-319, then continue downstream work in native dependency order
• Blockers: none within IP-319; PR #76 remains draft, unmerged, and undeployed, and IP-346 remains the separate downstream readiness gate