Add Docker Registry AIO with Nuxt Token Auth and admin UI.

Compose brings up registry:3 plus a Prisma/SQLite Nuxt app for docker login, ACL management, and image browsing with shadcn-vue.

Co-authored-by: Cursor <cursoragent@cursor.com>

app/prisma/schema.prisma

@@ -0,0 +1,36 @@
+generator client {
+  provider = "prisma-client"
+  output   = "../generated/prisma"
+}
+
+datasource db {
+  provider = "sqlite"
+}
+
+enum Role {
+  ADMIN
+  USER
+}
+
+model User {
+  id           String   @id @default(cuid())
+  username     String   @unique
+  passwordHash String
+  role         Role     @default(USER)
+  active       Boolean  @default(true)
+  acls         Acl[]
+  createdAt    DateTime @default(now())
+  updatedAt    DateTime @updatedAt
+}
+
+model Acl {
+  id         String  @id @default(cuid())
+  userId     String
+  user       User    @relation(fields: [userId], references: [id], onDelete: Cascade)
+  repository String
+  canPull    Boolean @default(true)
+  canPush    Boolean @default(false)
+  canDelete  Boolean @default(false)
+
+  @@index([userId])
+}