fix(auth-service): revert back to number

Author: Ansonhkg

packages/auth-services/src/queue-manager/src/handlers/pkpMint/pkpMint.doc.ts

@@ -4,22 +4,22 @@ export const mintPkpDoc = {
   body: t.Object(
     {
       authMethodType: t.Required(
-        t.String({
+        t.Number({
           description:
-            'The type of authentication method to use for the PKP. Supported types include:\n' +
-            '- "1": EthWallet\n' +
-            '- "2": LitAction\n' +
-            '- "3": WebAuthn\n' +
-            '- "4": Discord\n' +
-            '- "5": Google\n' +
-            '- "6": GoogleJwt\n' +
-            '- "8": AppleJwt\n' +
-            '- "9": StytchOtp\n' +
-            '- "10": StytchEmailFactorOtp\n' +
-            '- "11": StytchSmsFactorOtp\n' +
-            '- "12": StytchWhatsAppFactorOtp\n' +
-            '- "13": StytchTotpFactorOtp\n\n' +
-            'Custom auth methods can also be used by providing their corresponding string ID.',
+            'The numeric type of authentication method to use for the PKP. Supported types include:\n' +
+            '- 1: EthWallet\n' +
+            '- 2: LitAction\n' +
+            '- 3: WebAuthn\n' +
+            '- 4: Discord\n' +
+            '- 5: Google\n' +
+            '- 6: GoogleJwt\n' +
+            '- 8: AppleJwt\n' +
+            '- 9: StytchOtp\n' +
+            '- 10: StytchEmailFactorOtp\n' +
+            '- 11: StytchSmsFactorOtp\n' +
+            '- 12: StytchWhatsAppFactorOtp\n' +
+            '- 13: StytchTotpFactorOtp\n\n' +
+            'Custom auth methods can also be used by providing their corresponding numeric ID.',
         })
       ),
       authMethodId: t.Required(