refactor: make production gate impact only

scripts/run-release-gate-impact.mjs

@@ -6,7 +6,8 @@ function usage() {
   node scripts/run-release-gate-impact.mjs --artifact .runtime/portal --deployed-commit <sha>
 
 Runs the compact production core Gate plus scenarios selected from the Git diff.
-Critical, shared, or unmapped runtime changes automatically expand to the full catalog.`);
+Critical and shared paths expand their mapped impact domains. Unmapped paths or
+an invalid production baseline block release until the impact map is updated.`);
 }
 
 try {
@@ -25,9 +26,6 @@ try {
     console.log(`selected=${selection.selected_total}/${selection.catalog_total}`);
     console.log(`impact_groups=${selection.impact_groups.join(',') || 'none'}`);
     console.log(`changed_paths=${selection.changed_paths.length}`);
-  } else {
-    console.log('strategy=full');
-    console.log('reason=deployed_commit_unavailable');
   }
   console.log(JSON.stringify(summary));
   const passed = summary.failed === 0

scripts/verify-release-gate-report.mjs

@@ -76,7 +76,7 @@ try {
         ...selectImpactScenarios({
           catalog,
           changedPaths,
-          forceFullReasons: ancestry.code === 0
+          blockingReasons: ancestry.code === 0
             ? []
             : [`deployed_commit_not_ancestor:${report.selection.base_commit}`],
         }),