feat : add appointment apis

backend/prisma/migrations/20260313101753_appointment/migration.sql

@@ -0,0 +1,21 @@
+-- CreateTable
+CREATE TABLE "Appointment" (
+    "id" SERIAL NOT NULL,
+    "name" TEXT NOT NULL,
+    "mobileNumber" TEXT NOT NULL,
+    "email" TEXT,
+    "message" TEXT,
+    "date" TIMESTAMP(3) NOT NULL,
+    "doctorId" INTEGER NOT NULL,
+    "departmentId" INTEGER NOT NULL,
+    "createdAt" TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    "updatedAt" TIMESTAMP(3) NOT NULL,
+
+    CONSTRAINT "Appointment_pkey" PRIMARY KEY ("id")
+);
+
+-- AddForeignKey
+ALTER TABLE "Appointment" ADD CONSTRAINT "Appointment_doctorId_fkey" FOREIGN KEY ("doctorId") REFERENCES "Doctor"("id") ON DELETE RESTRICT ON UPDATE CASCADE;
+
+-- AddForeignKey
+ALTER TABLE "Appointment" ADD CONSTRAINT "Appointment_departmentId_fkey" FOREIGN KEY ("departmentId") REFERENCES "Department"("id") ON DELETE RESTRICT ON UPDATE CASCADE;