fix: clarify outside review fallback and CEO decisions

Render one applicable own-harness fallback path and retain native review,
disabled policy, and missing-coverage semantics. Align report field names
and mode labels, and make the existing per-cut scope approval explicit.

Regenerate skill outputs and keep the workflow judge's model, thresholds,
and retry policy unchanged.

codex/SKILL.md

@@ -779,16 +779,16 @@ missing work — do NOT call ExitPlanMode:
    does NOT count — only the structured `## GSTACK REVIEW REPORT` section
    satisfies this check.
 3. Confirm the report has a Runs / Status / Findings table and a VERDICT line
-   (CODEX / CROSS-MODEL absorbed if applicable).
+   (OUTSIDE COVERAGE / CROSS-MODEL included when applicable).
 4. Confirm the report's FINAL non-whitespace line is the unresolved-decisions
    status: the exact unbolded `NO UNRESOLVED DECISIONS`, or a bullet of a final
    `**UNRESOLVED DECISIONS:**` block. BLOCKING, no "if applicable" escape — a
-   bolded sentinel, any trailing CODEX/CROSS-MODEL/VERDICT/prose, or a missing
+   bolded sentinel, any trailing report field or prose, or a missing
    status each FAILS the gate.
 5. If a plan file is in context for this skill invocation: confirm
    `gstack-review-log` was called and `gstack-review-read` was run at least
-   once. If no plan file is in context (e.g. `/codex consult` against a
-   diff with no plan), this check short-circuits — checks 1-4 already
+   once. If no plan file is in context (e.g. a diff review with no plan),
+   this check short-circuits — checks 1-4 already
    short-circuit when no plan file exists.
 
 Failing this gate and calling ExitPlanMode anyway is a contract violation —