fix(quota)!: AI 채팅 쿼터(무료/유료) 구매 Response를 ChatQuotaStatusResponse으로 변경

src/main/kotlin/kr/co/vividnext/sodalive/chat/quota/ChatQuotaController.kt

@@ -24,9 +24,7 @@ class ChatQuotaController(
     )
 
     data class ChatQuotaPurchaseRequest(
-        val container: String,
-        val addPaid: Int = 50,
-        val needCan: Int = 30
+        val container: String
     )
 
     @GetMapping("/me")
@@ -44,7 +42,7 @@ class ChatQuotaController(
     fun purchaseQuota(
         @AuthenticationPrincipal(expression = "#this == 'anonymousUser' ? null : member") member: Member?,
         @RequestBody request: ChatQuotaPurchaseRequest
-    ): ApiResponse<Boolean> = run {
+    ): ApiResponse<ChatQuotaStatusResponse> = run {
         if (member == null) throw SodaException("로그인 정보를 확인해주세요.")
         if (member.auth == null) throw SodaException("본인인증을 하셔야 합니다.")
         if (request.container.isBlank()) throw SodaException("container를 확인해주세요.")
@@ -52,14 +50,16 @@ class ChatQuotaController(
         // 30캔 차감 처리 (결제 기록 남김)
         canPaymentService.spendCan(
             memberId = member.id!!,
-            needCan = if (request.needCan > 0) request.needCan else 30,
+            needCan = 30,
             canUsage = CanUsage.CHAT_QUOTA_PURCHASE,
             container = request.container
         )
 
         // 유료 횟수 적립 (기본 50)
-        val add = if (request.addPaid > 0) request.addPaid else 50
+        val add = 50
         chatQuotaService.purchase(member.id!!, add)
-        ApiResponse.ok(true)
+
+        val s = chatQuotaService.getStatus(member.id!!)
+        ApiResponse.ok(ChatQuotaStatusResponse(s.totalRemaining, s.nextRechargeAtEpochMillis))
     }
 }