Implement nation betting lifecycle

packages/infra/prisma/game.prisma

@@ -489,6 +489,46 @@ model InheritancePoint {
   @@map("inheritance_point")
 }
 
+model NationBetting {
+  id                       Int      @id
+  type                     String   @default("bettingNation")
+  name                     String
+  finished                 Boolean  @default(false)
+  selectCount              Int      @map("select_count")
+  isExclusive              Boolean? @map("is_exclusive")
+  requiresInheritancePoint Boolean  @default(true) @map("requires_inheritance_point")
+  openYearMonth            Int      @map("open_year_month")
+  closeYearMonth           Int      @map("close_year_month")
+  candidates               Json
+  winner                   Json?
+  createdAt                DateTime @default(now()) @map("created_at")
+  updatedAt                DateTime @updatedAt @map("updated_at")
+
+  bets NationBet[]
+
+  @@index([type, id])
+  @@map("nation_betting")
+}
+
+model NationBet {
+  id           Int      @id @default(autoincrement())
+  bettingId    Int      @map("betting_id")
+  generalId    Int      @map("general_id")
+  userId       String?  @map("user_id")
+  selection    Json
+  selectionKey String   @map("selection_key")
+  amount       Float
+  createdAt    DateTime @default(now()) @map("created_at")
+  updatedAt    DateTime @updatedAt @map("updated_at")
+
+  betting NationBetting @relation(fields: [bettingId], references: [id], onDelete: Cascade)
+
+  @@unique([bettingId, userId, selectionKey])
+  @@index([bettingId])
+  @@index([bettingId, userId])
+  @@map("nation_bet")
+}
+
 model InheritanceLog {
   id        Int      @id @default(autoincrement())
   userId    String   @map("user_id")

packages/infra/prisma/migrations/20260725006000_add_nation_betting/migration.sql

@@ -0,0 +1,42 @@
+CREATE TABLE "nation_betting" (
+    "id" INTEGER NOT NULL,
+    "type" TEXT NOT NULL DEFAULT 'bettingNation',
+    "name" TEXT NOT NULL,
+    "finished" BOOLEAN NOT NULL DEFAULT false,
+    "select_count" INTEGER NOT NULL,
+    "is_exclusive" BOOLEAN,
+    "requires_inheritance_point" BOOLEAN NOT NULL DEFAULT true,
+    "open_year_month" INTEGER NOT NULL,
+    "close_year_month" INTEGER NOT NULL,
+    "candidates" JSONB NOT NULL,
+    "winner" JSONB,
+    "created_at" TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    "updated_at" TIMESTAMP(3) NOT NULL,
+
+    CONSTRAINT "nation_betting_pkey" PRIMARY KEY ("id")
+);
+
+CREATE TABLE "nation_bet" (
+    "id" SERIAL NOT NULL,
+    "betting_id" INTEGER NOT NULL,
+    "general_id" INTEGER NOT NULL,
+    "user_id" TEXT,
+    "selection" JSONB NOT NULL,
+    "selection_key" TEXT NOT NULL,
+    "amount" DOUBLE PRECISION NOT NULL,
+    "created_at" TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    "updated_at" TIMESTAMP(3) NOT NULL,
+
+    CONSTRAINT "nation_bet_pkey" PRIMARY KEY ("id")
+);
+
+CREATE INDEX "nation_betting_type_id_idx" ON "nation_betting"("type", "id");
+CREATE INDEX "nation_bet_betting_id_idx" ON "nation_bet"("betting_id");
+CREATE INDEX "nation_bet_betting_id_user_id_idx" ON "nation_bet"("betting_id", "user_id");
+CREATE UNIQUE INDEX "nation_bet_betting_id_user_id_selection_key_key"
+    ON "nation_bet"("betting_id", "user_id", "selection_key");
+
+ALTER TABLE "nation_bet"
+    ADD CONSTRAINT "nation_bet_betting_id_fkey"
+    FOREIGN KEY ("betting_id") REFERENCES "nation_betting"("id")
+    ON DELETE CASCADE ON UPDATE CASCADE;

packages/infra/src/db.ts

@@ -27,6 +27,8 @@ export interface DatabaseClient {
     auction: GamePrisma.AuctionDelegate;
     auctionBid: GamePrisma.AuctionBidDelegate;
     inheritancePoint: GamePrisma.InheritancePointDelegate;
+    nationBetting: GamePrisma.NationBettingDelegate;
+    nationBet: GamePrisma.NationBetDelegate;
     inheritanceLog: GamePrisma.InheritanceLogDelegate;
     inheritanceResult: GamePrisma.InheritanceResultDelegate;
     inheritanceUserState: GamePrisma.InheritanceUserStateDelegate;