remove type assertion

src/server/database/repositories/user/service.ts

@@ -58,14 +58,14 @@ export class UserService {
     this.#statements = createPreparedStatement(db);
   }
 
-  #createTotp(user: Pick<UserType, 'username' | 'totpKey'>) {
+  #createTotp(user: { username: string; totpKey: string }) {
     return new TOTP({
       issuer: 'wg-easy',
       label: user.username,
       algorithm: 'SHA1',
       digits: 6,
       period: 30,
-      secret: user.totpKey!,
+      secret: user.totpKey,
     });
   }
 
@@ -167,11 +167,12 @@ export class UserService {
         if (!code) {
           return { success: false, error: 'TOTP_REQUIRED' };
         } else {
-          if (!txUser.totpKey) {
+          const totpKey = txUser.totpKey;
+          if (!totpKey) {
             return { success: false, error: 'UNEXPECTED_ERROR' };
           }
 
-          const totp = this.#createTotp(txUser);
+          const totp = this.#createTotp({ username: txUser.username, totpKey });
           if (totp.validate({ token: code, window: 1 }) === null) {
             return { success: false, error: 'INVALID_TOTP_CODE' };
           }
@@ -196,11 +197,12 @@ export class UserService {
         throw new Error('User not found');
       }
 
-      if (!txUser.totpKey) {
+      const totpKey = txUser.totpKey;
+      if (!totpKey) {
         throw new Error('TOTP key is not set');
       }
 
-      const totp = this.#createTotp(txUser);
+      const totp = this.#createTotp({ username: txUser.username, totpKey });
       if (totp.validate({ token: code, window: 1 }) === null) {
         throw new Error('Invalid TOTP code');
       }