Track SMS sent counts by type (mass, singular, auth, auto, admin).

Charge/refund bump the matching counter plus total; expose smsSentByType on business APIs.

Co-authored-by: Cursor <cursoragent@cursor.com>

src/auth/auth.service.ts

@@ -438,13 +438,13 @@ export class AuthService {
       ? `کد تایید شما: ${code}\n${brand}`
       : `کد تایید شما: ${code}`;
 
-    const charged = await this.smsBilling.charge(business.id, message);
+    const charged = await this.smsBilling.charge(business.id, message, 1, 'auth');
     await this.redis.setOtp(cellNumber, code, OTP_TTL_SECONDS);
 
     try {
       await this.sms.sendMessage(cellNumber, message);
     } catch (err) {
-      await this.smsBilling.refund(business.id, charged);
+      await this.smsBilling.refund(business.id, charged, 1, 'auth');
       if (err instanceof HttpException) {
         throw err;
       }