Initial commit: full-stack Bun + Elysia + React template

Elysia.js API with session-based auth (email/password + Google OAuth),
role system (USER/ADMIN/SUPER_ADMIN), Prisma + PostgreSQL, React 19
with Mantine UI, TanStack Router, dark theme, and comprehensive test
suite (unit, integration, E2E with Lightpanda).

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

prisma/schema.prisma

@@ -0,0 +1,42 @@
+generator client {
+  provider = "prisma-client-js"
+  output   = "../generated/prisma"
+}
+
+datasource db {
+  provider = "postgresql"
+  url      = env("DATABASE_URL")
+}
+
+enum Role {
+  USER
+  ADMIN
+  SUPER_ADMIN
+}
+
+model User {
+  id        String   @id @default(uuid())
+  name      String
+  email     String   @unique
+  password  String
+  role      Role     @default(USER)
+  createdAt DateTime @default(now())
+  updatedAt DateTime @updatedAt
+
+  sessions Session[]
+
+  @@map("user")
+}
+
+model Session {
+  id        String   @id @default(uuid())
+  token     String   @unique
+  userId    String
+  expiresAt DateTime
+  createdAt DateTime @default(now())
+
+  user User @relation(fields: [userId], references: [id], onDelete: Cascade)
+
+  @@index([token])
+  @@map("session")
+}