feat: bootstrap taller-turnos project

Estructura inicial con Next.js 14, PostgreSQL/Prisma 7, autenticación por
magic link (clientes) y JWT (admins), lógica de scheduling con 4 slots
paralelos y API routes completas para cliente y panel admin.

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

docker-compose.yml

@@ -0,0 +1,35 @@
+version: "3.9"
+
+services:
+  db:
+    image: postgres:16-alpine
+    container_name: taller_db
+    restart: unless-stopped
+    environment:
+      POSTGRES_USER: taller
+      POSTGRES_PASSWORD: taller123
+      POSTGRES_DB: taller_turnos
+    volumes:
+      - taller_db_data:/var/lib/postgresql/data
+    ports:
+      - "5432:5432"
+
+  app:
+    build:
+      context: .
+      dockerfile: Dockerfile
+    container_name: taller_app
+    restart: unless-stopped
+    depends_on:
+      - db
+    environment:
+      DATABASE_URL: postgresql://taller:taller123@db:5432/taller_turnos
+      NEXTAUTH_SECRET: ${NEXTAUTH_SECRET}
+      NEXTAUTH_URL: ${NEXTAUTH_URL}
+      RESEND_API_KEY: ${RESEND_API_KEY}
+      MAGIC_LINK_BASE_URL: ${MAGIC_LINK_BASE_URL}
+    ports:
+      - "3000:3000"
+
+volumes:
+  taller_db_data: