Add server infrastructure with API routes and middleware

- Create API route structure (auth, health, internal)
- Add authentication middleware for internal pages
- Add database connection utilities
- Implement health check endpoint

server/utils/db.ts

@@ -0,0 +1,34 @@
+import { drizzle } from 'drizzle-orm/postgres-js'
+import postgres from 'postgres'
+import * as schema from '../database/schema'
+
+/**
+ * Database connection utility
+ *
+ * Creates a singleton Drizzle ORM instance with the complete schema.
+ * This allows for type-safe database queries throughout the application.
+ *
+ * Usage:
+ * ```typescript
+ * import { db } from '~/server/utils/db'
+ *
+ * // Query with relations
+ * const users = await db.query.users.findMany({
+ *   with: { orders: true }
+ * })
+ *
+ * // Raw SQL with type safety
+ * import { users } from '~/server/database/schema'
+ * import { eq } from 'drizzle-orm'
+ *
+ * const user = await db.select().from(users).where(eq(users.id, userId))
+ * ```
+ */
+
+const config = useRuntimeConfig()
+
+// Create postgres.js client
+const client = postgres(config.databaseUrl)
+
+// Create Drizzle ORM instance with schema
+export const db = drizzle(client, { schema })