Database-level multi-library support #48 (#58)

* feat: start of library backends

* feat: update backend routes and create initializer

* feat: add legacy library creation

* fix: resolve frontend type errors

* fix: runtime errors

* fix: lint

prisma/migrations/20250601022736_add_database_library/migration.sql

@@ -0,0 +1,53 @@
+/*
+  Warnings:
+
+  - You are about to drop the `ClientPeerAPIConfiguration` table. If the table is not empty, all the data it contains will be lost.
+
+*/
+-- CreateEnum
+CREATE TYPE "LibraryBackend" AS ENUM ('Filesystem');
+
+-- AlterEnum
+ALTER TYPE "ClientCapabilities" ADD VALUE 'trackPlaytime';
+
+-- DropForeignKey
+ALTER TABLE "ClientPeerAPIConfiguration" DROP CONSTRAINT "ClientPeerAPIConfiguration_clientId_fkey";
+
+-- AlterTable
+ALTER TABLE "Screenshot" ALTER COLUMN "private" DROP DEFAULT;
+
+-- DropTable
+DROP TABLE "ClientPeerAPIConfiguration";
+
+-- CreateTable
+CREATE TABLE "Library" (
+    "id" TEXT NOT NULL,
+    "name" TEXT NOT NULL,
+    "backend" "LibraryBackend" NOT NULL,
+    "options" JSONB NOT NULL,
+
+    CONSTRAINT "Library_pkey" PRIMARY KEY ("id")
+);
+
+-- CreateTable
+CREATE TABLE "Playtime" (
+    "gameId" TEXT NOT NULL,
+    "userId" TEXT NOT NULL,
+    "seconds" INTEGER NOT NULL,
+    "updatedAt" TIMESTAMPTZ(6) NOT NULL,
+    "createdAt" TIMESTAMPTZ(6) NOT NULL DEFAULT CURRENT_TIMESTAMP,
+
+    CONSTRAINT "Playtime_pkey" PRIMARY KEY ("gameId","userId")
+);
+
+-- CreateIndex
+CREATE INDEX "Playtime_userId_idx" ON "Playtime"("userId");
+
+-- CreateIndex
+CREATE INDEX "Screenshot_userId_idx" ON "Screenshot"("userId");
+
+-- AddForeignKey
+ALTER TABLE "Playtime" ADD CONSTRAINT "Playtime_gameId_fkey" FOREIGN KEY ("gameId") REFERENCES "Game"("id") ON DELETE CASCADE ON UPDATE CASCADE;
+
+-- AddForeignKey
+ALTER TABLE "Playtime" ADD CONSTRAINT "Playtime_userId_fkey" FOREIGN KEY ("userId") REFERENCES "User"("id") ON DELETE CASCADE ON UPDATE CASCADE;