fix: stop fabricating auto-chain hook evidence

scripts/test_plan_long_task_auto_chain.mjs

@@ -124,6 +124,40 @@ const scenarios = [
       requiredEvidenceIncludes: 'executionEvidence',
     },
   },
+  {
+    name: 'spec review pass without review evidence -> blocked_by_evidence',
+    input: {
+      gateStatus: 'pass',
+      actorStage: 'spec_review',
+      reviewOutcome: 'pass',
+      requiredNextAction: 'request_code_quality_review',
+    },
+    expected: {
+      plannerStatus: 'blocked_by_evidence',
+      derivedAction: 'none',
+      dispatchMode: 'no_dispatch',
+      autoChainAllowed: false,
+      reasonIncludes: 'review pass evidence missing',
+      requiredEvidenceIncludes: 'reviewEvidence',
+    },
+  },
+  {
+    name: 'fix slice without blocker evidence -> blocked_by_evidence',
+    input: {
+      gateStatus: 'pass',
+      actorStage: 'review_result',
+      blocker: 'hook_preflight_blocker',
+      requiredNextAction: 'fix_review_findings',
+    },
+    expected: {
+      plannerStatus: 'blocked_by_evidence',
+      derivedAction: 'none',
+      dispatchMode: 'no_dispatch',
+      autoChainAllowed: false,
+      reasonIncludes: 'blocker evidence missing',
+      requiredEvidenceIncludes: 'blockerEvidence',
+    },
+  },
 ];
 
 function runPlanner(input) {