init prisma schema in migration

+generator client {
+  provider      = "prisma-client-js"
+  binaryTargets = ["native", "debian-openssl-1.1.x"]
+}
+
+datasource db {
+  provider = "mysql"
+  url = "***"
+}
+
+model User {
+  id          Int       @default(autoincrement()) @id
+  avatarUrl   String?
+  email       String    @unique
+  password    String
+  name        String
+  loginSecret String?
+  bio         String?
+  rooms       Room[]    @relation(references: [id])
+  messages    Message[]
+  createdAt   DateTime? @default(now())
+}
+
+model Room {
+  id           Int        @default(autoincrement()) @id
+  participants User[]     @relation(references: [id])
+  categories   Category[] @relation(references: [id])
+}
+
+model Category {
+  id    Int     @default(autoincrement()) @id
+  name  String? @default("")
+  rooms Room[]  @relation(references: [id])
+}
+
+model Message {
+  id       Int     @default(autoincrement()) @id
+  text     String? @default("")
+  sender   User    @relation(fields: [senderId], references: [id])
+  senderId Int
+}
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