db updates

prisma/migrations/20260529000000_match_results/migration.sql

@@ -0,0 +1,16 @@
+-- CreateTable
+CREATE TABLE "MatchResult" (
+    "id" TEXT NOT NULL,
+    "userId" TEXT NOT NULL,
+    "grade" "Grade" NOT NULL,
+    "won" BOOLEAN NOT NULL,
+    "eloChange" INTEGER NOT NULL,
+    "eloAfter" INTEGER NOT NULL,
+    "timeSpentMs" INTEGER,
+    "playedAt" TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP,
+
+    CONSTRAINT "MatchResult_pkey" PRIMARY KEY ("id")
+);
+
+-- AddForeignKey
+ALTER TABLE "MatchResult" ADD CONSTRAINT "MatchResult_userId_fkey" FOREIGN KEY ("userId") REFERENCES "User"("id") ON DELETE RESTRICT ON UPDATE CASCADE;