feat: tíng năng trò chuyện giữa các thành viên và tin nhắn trực tiếp cho bạn bè

backend/prisma/migrations/20260621020327_add_tour_chat/migration.sql

@@ -0,0 +1,31 @@
+-- AlterTable
+ALTER TABLE "DirectMessage" ADD COLUMN     "attachmentUrl" TEXT,
+ADD COLUMN     "latitude" DOUBLE PRECISION,
+ADD COLUMN     "longitude" DOUBLE PRECISION;
+
+-- CreateTable
+CREATE TABLE "TourMessage" (
+    "id" TEXT NOT NULL,
+    "tourId" TEXT NOT NULL,
+    "senderId" TEXT NOT NULL,
+    "content" TEXT NOT NULL,
+    "attachmentUrl" TEXT,
+    "latitude" DOUBLE PRECISION,
+    "longitude" DOUBLE PRECISION,
+    "createdAt" TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    "updatedAt" TIMESTAMP(3) NOT NULL,
+
+    CONSTRAINT "TourMessage_pkey" PRIMARY KEY ("id")
+);
+
+-- CreateIndex
+CREATE INDEX "TourMessage_tourId_idx" ON "TourMessage"("tourId");
+
+-- CreateIndex
+CREATE INDEX "TourMessage_senderId_idx" ON "TourMessage"("senderId");
+
+-- AddForeignKey
+ALTER TABLE "TourMessage" ADD CONSTRAINT "TourMessage_tourId_fkey" FOREIGN KEY ("tourId") REFERENCES "Tour"("id") ON DELETE CASCADE ON UPDATE CASCADE;
+
+-- AddForeignKey
+ALTER TABLE "TourMessage" ADD CONSTRAINT "TourMessage_senderId_fkey" FOREIGN KEY ("senderId") REFERENCES "User"("id") ON DELETE CASCADE ON UPDATE CASCADE;