create project

backend/prisma/schema.prisma

@@ -0,0 +1,60 @@
+generator client {
+  provider = "prisma-client-js"
+}
+
+datasource db {
+  provider = "postgresql"
+  url      = env("DATABASE_URL")
+}
+
+model User {
+  id              String     @id @default(cuid())
+  phone           String     @unique
+  passwordHash    String
+  nickname        String
+  email           String?
+  familyIds       String[]
+  activeFamilyId  String?
+  joinDate        DateTime   @default(now())
+  createdAt       DateTime   @default(now())
+  bills           Bill[]
+  familiesCreated Family[]   @relation("FamilyCreator")
+}
+
+model Family {
+  id         String         @id @default(cuid())
+  name       String
+  inviteCode String         @unique
+  createdBy  String
+  creator    User           @relation("FamilyCreator", fields: [createdBy], references: [id])
+  createdAt  DateTime       @default(now())
+  members    FamilyMember[]
+  bills      Bill[]
+}
+
+model FamilyMember {
+  id        String   @id @default(cuid())
+  familyId  String
+  family    Family   @relation(fields: [familyId], references: [id], onDelete: Cascade)
+  userId    String
+  nickname  String
+  role      String
+  joinedAt  DateTime @default(now())
+  @@unique([familyId, userId])
+}
+
+model Bill {
+  id        String   @id @default(cuid())
+  userId    String
+  user      User     @relation(fields: [userId], references: [id])
+  familyId  String?
+  family    Family?  @relation(fields: [familyId], references: [id])
+  type      String
+  amount    Float
+  category  String
+  note      String?
+  emoji     String?
+  time      String
+  date      DateTime
+  createdAt DateTime @default(now())
+}