fix: 실제 행동 기준으로 접속 중 국가를 집계

packages/infra/prisma/game.prisma

@@ -271,12 +271,14 @@ model GeneralAccessLog {
   generalId         Int       @unique @map("general_id")
   userId            String?   @map("user_id")
   lastRefresh       DateTime? @map("last_refresh")
+  lastActionAt      DateTime? @map("last_action_at")
   refresh           Int       @default(0)
   refreshTotal      Int       @default(0) @map("refresh_total")
   refreshScore      Int       @default(0) @map("refresh_score")
   refreshScoreTotal Int       @default(0) @map("refresh_score_total")
 
   @@index([userId])
+  @@index([lastActionAt])
   @@map("general_access_log")
 }
 

packages/infra/prisma/migrations/20260819000000_add_general_last_action/migration.sql

@@ -0,0 +1,5 @@
+ALTER TABLE "general_access_log"
+ADD COLUMN "last_action_at" TIMESTAMP(3);
+
+CREATE INDEX "general_access_log_last_action_at_idx"
+ON "general_access_log"("last_action_at");