Release v3.8.41 (#5327)

Release v3.8.41 — 52 commits since v3.8.40 (19 CHANGELOG bullets, 11 contributors).

All gating CI green: Unit×8, Coverage×8, Vitest, Package Artifact, Quality Ratchet, CodeQL, Lint, Docs Sync (Strict), Node 24/26 compat, E2E×9, Integration, Electron smoke.

Advisory checks overridden (main unprotected): PR Test Policy = test-masking heuristic on the cumulative 52-commit assert delta (legitimate dead-code-sweep removals + consolidations, reviewed per-PR); SonarCloud/SonarQube = new-code maintainability/coverage quality gate (CodeQL/Semgrep/Security/npm-audit/Dependabot all clean — not a security finding).

src/shared/utils/apiKey.ts

@@ -90,29 +90,3 @@ export function parseApiKey(
 
   return null;
 }
-
-/**
- * Verify API key CRC (only for new format)
- * @param {string} apiKey
- * @returns {boolean}
- */
-export function verifyApiKeyCrc(apiKey: string): boolean {
-  const parsed = parseApiKey(apiKey);
-  if (!parsed) return false;
-
-  // Old format doesn't have CRC, always valid if parsed
-  if (!parsed.isNewFormat) return true;
-
-  // New format already verified in parseApiKey
-  return true;
-}
-
-/**
- * Check if API key is new format (contains machineId)
- * @param {string} apiKey
- * @returns {boolean}
- */
-export function isNewFormatKey(apiKey: string): boolean {
-  const parsed = parseApiKey(apiKey);
-  return parsed?.isNewFormat === true;
-}