feat: implement admin dashboard with full CRUD functionality

server/api/reservations/index.get.ts

@@ -0,0 +1,27 @@
+import { defineEventHandler, createError } from 'h3';
+import { db } from '~/server/db';
+import { reservations, customers } from '~/server/db/schema';
+import { eq } from 'drizzle-orm';
+
+export default defineEventHandler(async () => {
+  try {
+    const allReservations = await db
+      .select({
+        ReservationID: reservations.id,
+        Name: customers.name,
+        RoomID: reservations.roomId,
+        CheckInTime: reservations.checkInTime,
+        StayDays: reservations.stayDays,
+      })
+      .from(reservations)
+      .leftJoin(customers, eq(reservations.customerId, customers.id));
+
+    return allReservations;
+  } catch (error) {
+    console.error('Error fetching all reservations:', error);
+    return createError({
+      statusCode: 500,
+      statusMessage: 'Failed to fetch all reservations',
+    });
+  }
+});