feat: basic onboarding flow\

apps/backend/prisma/models/auth.prisma

@@ -6,17 +6,19 @@ model User {
   email         String    @unique
   emailVerified Boolean   @default(false)
   image         String?
+  onboardingCompleted Boolean @default(false)
   createdAt     DateTime  @default(now())
   updatedAt     DateTime  @updatedAt
 
-  accounts       Account[]
-  sessions       Session[]
-  passkeys       Passkey[]
-  groupsMember   GroupMember[]
-  groupsOwner    Group[]        @relation("OwnerGroups")
-  orgMemberships Member[]
-  orgInvitations Invitation[]   @relation("InvitedBy")
-  waitlist       WaitlistEntry[]
+  accounts        Account[]
+  sessions        Session[]
+  passkeys        Passkey[]
+  groupsMember    GroupMember[]
+  groupsOwner     Group[]        @relation("OwnerGroups")
+  orgMemberships  Member[]
+  orgInvitations  Invitation[]   @relation("InvitedBy")
+  waitlist        WaitlistEntry[]
+  merchantAccount MerchantAccount?
 
   @@map("users")
 }

apps/backend/prisma/models/domain.prisma

@@ -1,12 +1,18 @@
 // Domain models
 
 model Group {
-  id          String   @id @default(cuid())
+  id          String      @id @default(cuid())
   name        String
   description String?
+  days        WeekDay[]
+  time        String?
+  capacity    Int?
+  price       Decimal?    @db.Decimal(10, 2)
+  billingType BillingType?
+  dueDay      Int?
   createdById String
-  createdAt   DateTime @default(now())
-  updatedAt   DateTime @updatedAt
+  createdAt   DateTime    @default(now())
+  updatedAt   DateTime    @updatedAt
 
   owner    User          @relation("OwnerGroups", fields: [createdById], references: [id], onDelete: Cascade)
   members  GroupMember[]
@@ -16,6 +22,21 @@ model Group {
   @@map("groups")
 }
 
+enum WeekDay {
+  MONDAY
+  TUESDAY
+  WEDNESDAY
+  THURSDAY
+  FRIDAY
+  SATURDAY
+  SUNDAY
+}
+
+enum BillingType {
+  MONTHLY
+  PER_CLASS
+}
+
 model GroupMember {
   id       String @id @default(cuid())
   groupId  String
@@ -103,4 +124,24 @@ enum WaitlistStatus {
   INVITED
   JOINED
   DECLINED
+}
+
+enum PaymentProvider {
+  MERCADO_PAGO
+  STRIPE
+}
+
+model MerchantAccount {
+  id          String          @id @default(cuid())
+  userId      String          @unique
+  provider    PaymentProvider
+  accessToken String?
+  sandbox     Boolean         @default(true)
+  connectedAt DateTime        @default(now())
+  createdAt   DateTime        @default(now())
+  updatedAt   DateTime        @updatedAt
+
+  user User @relation(fields: [userId], references: [id], onDelete: Cascade)
+
+  @@map("merchant_accounts")
 }