feat: scaffold Strapi 5 CMS with PostgreSQL and i18n config

Add Strapi 5 headless CMS application at apps/cms/ with:
- PostgreSQL database configuration (afterlife database)
- i18n plugin enabled with Spanish (default) and English locales
- TypeScript configuration
- Standard Strapi middleware stack
- Environment variable template (.env.example)
- Admin panel locale support for es/en

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

apps/cms/config/database.ts

@@ -0,0 +1,13 @@
+export default ({ env }) => ({
+  connection: {
+    client: "postgres",
+    connection: {
+      host: env("DATABASE_HOST", "127.0.0.1"),
+      port: env.int("DATABASE_PORT", 5432),
+      database: env("DATABASE_NAME", "afterlife"),
+      user: env("DATABASE_USERNAME", "afterlife"),
+      password: env("DATABASE_PASSWORD", "afterlife"),
+      ssl: env.bool("DATABASE_SSL", false),
+    },
+  },
+});