fix: restore scrolling and validator enforcement

src/main/git-validator-policy.cjs

@@ -20,6 +20,8 @@ function normalizePolicy(policy = {}) {
     enabledChecks: Array.isArray(custom.enabledChecks) ? [...new Set(custom.enabledChecks.map(String))] : null,
     severityOverrides: custom.severityOverrides && typeof custom.severityOverrides === "object" ? { ...custom.severityOverrides } : {},
     blockingChecks: [...new Set((custom.blockingChecks || policy.blockingChecks || []).map(String))],
+    blockingSeverities: [...new Set((custom.blockingSeverities || policy.blockingSeverities || base.severities || ["error"]).map(String))]
+      .filter((severity) => ["warning", "error"].includes(severity)),
     allowSuppressions: custom.allowSuppressions ?? base.allowSuppressions ?? true,
     maxSuppressionDays: Math.max(1, Number(custom.maxSuppressionDays ?? base.maxSuppressionDays ?? 30)),
   };
@@ -57,7 +59,7 @@ function applyPolicy(checks, policyInput, suppressions = [], now = new Date()) {
       suppressed: Boolean(suppression),
       suppression: suppression || null,
       expiredSuppression: expiredSuppression || null,
-      blocking: !suppression && status !== "pass" && (status === "error" || policy.blockingChecks.includes(check.id)),
+      blocking: !suppression && status !== "pass" && (policy.blockingSeverities.includes(status) || policy.blockingChecks.includes(check.id)),
     };
   });
   return { policy, checks: relevant };