Add tests for authentication and security features

- Implement unit tests for password handling in `auth_test.ts`, covering bcrypt and legacy password hashes.
- Create a fake database for user management to facilitate testing of the `AdminHandler`.
- Validate JWT-based identity verification against database records.
- Introduce tests for credential encryption and registry management in `security_test.ts`.
- Ensure registry passwords are securely stored and can be decrypted correctly, including legacy support.
- Add utility functions for password hashing and verification in `auth.ts`.

ts/opsserver/helpers/guards.ts

@@ -5,25 +5,13 @@ import * as interfaces from '../../../ts_interfaces/index.ts';
 export async function requireValidIdentity<T extends { identity?: interfaces.data.IIdentity }>(
   adminHandler: AdminHandler,
   dataArg: T,
-): Promise<void> {
-  if (!dataArg.identity) {
-    throw new plugins.typedrequest.TypedResponseError('No identity provided');
-  }
-  const passed = await adminHandler.validIdentityGuard.exec({ identity: dataArg.identity });
-  if (!passed) {
-    throw new plugins.typedrequest.TypedResponseError('Valid identity required');
-  }
+): Promise<interfaces.data.IIdentity> {
+  return await adminHandler.getVerifiedIdentity(dataArg.identity);
 }
 
 export async function requireAdminIdentity<T extends { identity?: interfaces.data.IIdentity }>(
   adminHandler: AdminHandler,
   dataArg: T,
-): Promise<void> {
-  if (!dataArg.identity) {
-    throw new plugins.typedrequest.TypedResponseError('No identity provided');
-  }
-  const passed = await adminHandler.adminIdentityGuard.exec({ identity: dataArg.identity });
-  if (!passed) {
-    throw new plugins.typedrequest.TypedResponseError('Admin access required');
-  }
+): Promise<interfaces.data.IIdentity> {
+  return await adminHandler.getVerifiedAdminIdentity(dataArg.identity);
 }