docs(#753): clear KBN-010 schema gate

docs/scratchpads/753-kbn010-threat-gate.md

@@ -73,3 +73,29 @@ Pending worker validation, independent SecReview, Ultron gate, PR merge, post-me
 - Independent Codex security review — PASS, zero critical/high/medium/low findings; tenant isolation is preserved.
 - Independent Codex code review confirmed the candidate key repairs both FK targets and reported no blocker on the authorized delta. Its initial request to rewrite the historical KBN-010 verdict conflicts with the exclusive scope and was resolved by documenting the immutable-evidence boundary in rc.4; its remaining finding concerns pre-existing live `.mosaic` session files, which are untouched and excluded from this commit.
 - Scoped diff: only the two frozen contract files and this append-only scratchpad amendment are staged for delivery; no runtime schema, migration, task plan, gate verdict, provider artifact, or #757-owned file is included.
+
+## 2026-07-14 final rc.4 KBN-010 disposition
+
+- Control-plane direction authorized final disposition edits only to `docs/native-kanban-sot/KBN-010-THREAT-AUTH-CONSTRAINT-GATE.md` and this append-only scratchpad; contract author `web1:kbn-contract` remained idle and undisturbed.
+- Exact reviewed contract object: commit `3f6a3387b419eb99453ee10dd25ba888faaab0b5`, tree `7ebab8fa530a7180036928cea9527f808548aa14`.
+- Corroborating review identities: full-index SHA-256 `6b40a76265c4f3e6d1d30a7f262a2dd16e0d51997e99c146b59f527e6524cd42`; stable patch-id `058cf98026fcd1043703c866aee047c8bb144740`. A command-rendered patch digest varied by Git rendering command/options and is non-authoritative; commit+tree+exact file content are canonical.
+- Independent Homelab non-author schema/security review verdict: **APPROVE**. It confirmed the rc.4 `missions_workspace_id_uidx(workspace_id,id)` repairs both dependent FKs while retaining the global PK and project-congruent key; tenant, polymorphic exactly-one-target, RESTRICT/no-cascade, N-1/rollback semantics remain valid.
+- Read-only #757 cross-check: no shared table, index, FK, identity, fence, or authority collision with connector lease/CAS fencing.
+- Final KBN-010 gate decision: **PASS / GO** at rc.4 with `UNRESOLVED SCHEMA IMPACTS` equal to exact `none`. Historical SI-001 detection remains in the gate document as evidence that rc.3 was invalid.
+- No runtime schema/migration/API/config/dependency/CI/deployment implementation is claimed. KBN-100 must still implement candidate-before-dependent-FK ordering, duplicate feasibility, empty/prod/N-1/rollback evidence, exact FK reconciliation, and separate artifact/approval foreign-workspace negatives (N100-45..50).
+- TDD remains not applicable because this continuation changes only documentation/evidence disposition and no runtime behavior.
+- Remaining orchestrator-owned sequence: worker validation/commit/push → PR open/update → Ultron review → squash merge → terminal-green post-main CI → close #753 → release KBN-100. KBN-100 is not released earlier.
+
+### Final worker validation
+
+- Changed-doc Prettier and link checks — PASS; issue #753 external link returned successfully.
+- Static future-test catalog check — PASS: all prefixes are individually enumerated, contiguous, and duplicate-free; N100 now spans N100-01..50.
+- rc.4 disposition assertions — PASS: gate status PASS/GO, frozen target rc.4, exact `none` unresolved section, independent APPROVE, review identities, and N100-50 are present.
+- Review identity reproduction — PASS: commit tree `7ebab8fa530a7180036928cea9527f808548aa14`, full-index SHA-256 `6b40a76265c4f3e6d1d30a7f262a2dd16e0d51997e99c146b59f527e6524cd42`, and stable patch-id `058cf98026fcd1043703c866aee047c8bb144740` match.
+- rc.4 frozen-contract static check — PASS: the candidate key is unique in the declaration and precedes both dependent FKs; frozen contract files remain byte-identical to commit `3f6a3387b419eb99453ee10dd25ba888faaab0b5`.
+- `pnpm exec tsc -p docs/native-kanban-sot/tsconfig.json --noEmit` — PASS.
+- `pnpm format:check` — PASS.
+- `pnpm lint` — PASS (23 tasks successful).
+- `pnpm typecheck` — PASS (42 tasks successful).
+- Scoped diff — PASS: only the gate document and this scratchpad are authored changes; contracts, TASKS, requirements, runtime/schema/migration/config/dependency/CI/deployment and #757-owned files are unchanged. Live `.mosaic` session state remains untouched and excluded.
+- Remaining worker steps: final formatting/scoped staging, commit `docs(#753): clear KBN-010 schema gate`, queue guard, push, and control-plane notification.