first commit + some progress

prisma/migrations/20260507153955_grade_enum/migration.sql

@@ -0,0 +1,25 @@
+/*
+  Warnings:
+
+  - Changed the type of `grade` on the `GameSession` table. No cast exists, the column would be dropped and recreated, which cannot be done if there is data, since the column is required.
+  - Changed the type of `grade` on the `LeaderboardEntry` table. No cast exists, the column would be dropped and recreated, which cannot be done if there is data, since the column is required.
+  - Changed the type of `grade` on the `Question` table. No cast exists, the column would be dropped and recreated, which cannot be done if there is data, since the column is required.
+
+*/
+-- CreateEnum
+CREATE TYPE "Grade" AS ENUM ('G3', 'G6', 'G9');
+
+-- AlterTable
+ALTER TABLE "GameSession" DROP COLUMN "grade",
+ADD COLUMN     "grade" "Grade" NOT NULL;
+
+-- AlterTable
+ALTER TABLE "LeaderboardEntry" DROP COLUMN "grade",
+ADD COLUMN     "grade" "Grade" NOT NULL;
+
+-- AlterTable
+ALTER TABLE "Question" DROP COLUMN "grade",
+ADD COLUMN     "grade" "Grade" NOT NULL;
+
+-- CreateIndex
+CREATE UNIQUE INDEX "LeaderboardEntry_userId_grade_subject_key" ON "LeaderboardEntry"("userId", "grade", "subject");