added file upload and storage

prisma/migrations/20250711170415_add_file_upload_model/migration.sql

@@ -0,0 +1,22 @@
+-- CreateTable
+CREATE TABLE "FileUpload" (
+    "id" TEXT NOT NULL,
+    "filepath" TEXT NOT NULL,
+    "filename" TEXT NOT NULL,
+    "filetype" TEXT NOT NULL,
+    "filesize" INTEGER NOT NULL,
+    "uploadedAt" TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    "uploadedById" TEXT NOT NULL,
+    "eventId" TEXT,
+
+    CONSTRAINT "FileUpload_pkey" PRIMARY KEY ("id")
+);
+
+-- CreateIndex
+CREATE UNIQUE INDEX "FileUpload_filename_uploadedById_key" ON "FileUpload"("filename", "uploadedById");
+
+-- AddForeignKey
+ALTER TABLE "FileUpload" ADD CONSTRAINT "FileUpload_uploadedById_fkey" FOREIGN KEY ("uploadedById") REFERENCES "User"("id") ON DELETE RESTRICT ON UPDATE CASCADE;
+
+-- AddForeignKey
+ALTER TABLE "FileUpload" ADD CONSTRAINT "FileUpload_eventId_fkey" FOREIGN KEY ("eventId") REFERENCES "Event"("id") ON DELETE SET NULL ON UPDATE CASCADE;