feat: 카카오 계정의 본인 복구와 인증 후 연결 교체를 추가한다

packages/infra/prisma/gateway-migrations/20261107000000_kakao_identity_link_history/migration.sql

@@ -0,0 +1,11 @@
+CREATE TABLE "kakao_identity_link_history" (
+    "id" TEXT NOT NULL,
+    "user_id" TEXT NOT NULL,
+    "previous_oauth_id" TEXT NOT NULL,
+    "next_oauth_id" TEXT NOT NULL,
+    "authorization" TEXT NOT NULL,
+    "created_at" TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    CONSTRAINT "kakao_identity_link_history_pkey" PRIMARY KEY ("id")
+);
+CREATE INDEX "kakao_identity_link_history_previous_oauth_id_created_at_idx" ON "kakao_identity_link_history"("previous_oauth_id", "created_at");
+CREATE INDEX "kakao_identity_link_history_user_id_created_at_idx" ON "kakao_identity_link_history"("user_id", "created_at");

packages/infra/prisma/gateway.prisma

@@ -126,6 +126,20 @@ model AppUser {
   @@map("app_user")
 }
 
+// 교체 이력을 보존하며 이전 ID는 같은 서비스 계정만 다시 연결할 수 있다.
+model KakaoIdentityLinkHistory {
+  id              String   @id @default(uuid())
+  userId          String   @map("user_id")
+  previousOauthId String   @map("previous_oauth_id")
+  nextOauthId     String   @map("next_oauth_id")
+  authorization   String
+  createdAt       DateTime @default(now()) @map("created_at")
+
+  @@index([previousOauthId, createdAt])
+  @@index([userId, createdAt])
+  @@map("kakao_identity_link_history")
+}
+
 model RetiredKakaoIdentity {
   id               String   @id @default(uuid())
   oauthId          String   @unique @map("oauth_id")