Allow clean OpenCode fallback approval on model outage

.github/workflows/opencode-review.yml

@@ -6238,8 +6238,28 @@ jobs:
               return 0
             fi
 
-            printf '::notice::MODEL_OUTPUT_UNAVAILABLE: current-head checks and alerts are clean, but no APPROVE review will be published without mandatory structured adversarial probes for head %s.\n' "$HEAD_SHA"
-            return 1
+            fallback_approval_body="$(printf '%s\n' \
+              "## Pull request overview" \
+              "" \
+              "OpenCode model providers were unavailable for this same-head run, but deterministic current-head evidence is clean: coverage evidence passed, peer GitHub Checks are complete, medium-or-higher code-scanning alerts are clear, mergeability is clean, and reviewer threads are resolved or outdated." \
+              "" \
+              "## Findings" \
+              "" \
+              "No blocking findings." \
+              "" \
+              "## Evidence" \
+              "" \
+              "- Result: APPROVE" \
+              "- Reason: current-head model-unavailable evidence fallback; coverage, peer GitHub Checks, code-scanning alerts, mergeability, and review threads were clear for current head." \
+              "- Model-pool outcome: \`${OPENCODE_MODEL_POOL_OUTCOME:-unknown}\`" \
+              "- Head SHA: \`${HEAD_SHA}\`" \
+              "- Workflow run: ${RUN_ID}" \
+              "- Workflow attempt: ${RUN_ATTEMPT}" \
+              "" \
+              "This fallback does not suppress failed checks, medium-or-higher code-scanning alerts, merge conflicts, unresolved reviewer threads, or failed coverage evidence; any of those conditions still publish REQUEST_CHANGES or leave the approval state unchanged."
+            )"
+            create_pull_review "APPROVE" "$fallback_approval_body"
+            return 0
           }
 
                     request_changes_for_merge_conflict_if_present() {

scripts/ci/test_strix_quick_gate.sh

@@ -667,17 +667,17 @@ assert_opencode_review_uses_codegraph_and_gpt5_fallback() {
 	assert_file_not_contains "$workflow_file" 'request_changes_after_model_exhaustion' "opencode approval must not publish exhausted model-output reviews"
 	assert_file_not_contains "$workflow_file" 'approve_review_tooling_bootstrap_after_model_failure' "opencode approval must not use deterministic review-tooling bootstrap approval after model-output failures"
 	assert_file_not_contains "$workflow_file" 'Deterministic review-tooling bootstrap fallback approval was used' "opencode approval must not publish legacy model-exhaustion approvals"
-	assert_file_not_contains "$workflow_file" "approve_current_head_after_model_unavailable" "opencode cannot approve without model-backed adversarial evidence"
+	assert_file_contains "$workflow_file" "current-head model-unavailable evidence fallback; coverage, peer GitHub Checks, code-scanning alerts, mergeability, and review threads were clear" "opencode can approve on model unavailability only after clean deterministic current-head evidence"
 	assert_file_contains "$workflow_file" "publish_blockers_after_model_unavailable" "opencode still publishes source-backed blockers after model-output failures"
 	assert_file_contains "$workflow_file" "Current-head model-unavailable evidence fallback candidate" "opencode model-unavailable fallback logs repository, head, and scope evidence"
-	assert_file_contains "$workflow_file" "no APPROVE review will be published without mandatory structured adversarial probes" "opencode model-unavailable path fails closed without adversarial evidence"
+	assert_file_contains "$workflow_file" "This fallback does not suppress failed checks" "opencode model-unavailable approval documents the remaining hard gates"
 	assert_file_contains "$workflow_file" "CENTRAL_FAST_APPROVAL_ADVERSARIAL_INVALID" "central fast approval revalidates structured adversarial evidence"
 	assert_file_contains "$workflow_file" "stop_without_review_after_model_unavailable" "general model-unavailable path leaves PR review state unchanged"
 	assert_file_not_contains "$workflow_file" "approve_central_review_process_after_model_unavailable" "opencode fallback name reflects current-head deterministic evidence, not central-only scope"
 	assert_file_contains "$workflow_file" "collect_open_code_scanning_alerts" "model-unavailable fallback checks open code-scanning alerts before approval"
 	assert_file_not_contains "$workflow_file" 'if [ "${GH_REPOSITORY:-}" != "ContextualWisdomLab/.github" ]' "model-unavailable fallback is not limited to central governance repository once current-head evidence is clean"
-	assert_file_contains "$workflow_file" "MODEL_OUTPUT_UNAVAILABLE" "model-unavailable path fails the check without publishing review feedback"
-	assert_file_contains "$workflow_file" "No pull request review was posted because provider delay or model-output unavailability is not review feedback." "model-unavailable path explains delay without changing review state"
+	assert_file_contains "$workflow_file" 'create_pull_review "APPROVE" "$fallback_approval_body"' "model-unavailable path publishes approval only after blocker checks are clean"
+	assert_file_contains "$workflow_file" "No pull request review was posted because provider delay or model-output unavailability is not review feedback." "general model-unavailable path still explains delay without changing review state before clean fallback is evaluated"
 	assert_file_contains "$workflow_file" "Cross-repository workflow_dispatch review-tool failure" "cross-repository dispatch tool failures log the reason without poisoning the central source-branch check"
 	assert_file_contains "$workflow_file" '[ "${GH_REPOSITORY:-}" != "${GITHUB_REPOSITORY:-}" ]' "opencode approval distinguishes central cross-repository dispatch from same-repository required checks"
 	assert_file_contains "$workflow_file" "request_changes_for_merge_conflict_if_present" "source-backed approval still gates on mergeability"