fix(vault): remove NODE_ENV=test and VITEST auto-enable of insecure fallback so only explicit opt-in unlocks it

src/main/vault.ts

@@ -87,10 +87,6 @@ export class SecretVault {
   }
 
   private allowInsecureVaultFallback() {
-    return (
+    return process.env.AGENTCOMPANY_ALLOW_INSECURE_VAULT === "true";
-      process.env.AGENTCOMPANY_ALLOW_INSECURE_VAULT === "true" ||
-      process.env.NODE_ENV === "test" ||
-      process.env.VITEST === "true"
-    );
   }
 }