feat(db): add performance entries and game platform support schemas

- Create performanceEntries table with FPS metrics, environment details,
  feature flags (FSR, frame gen), load times, settings JSON, and moderation
- Create gamePlatformSupport table with Proton/anti-cheat status enums
  and composite unique constraint on (gameId, hardwareSlug)
- Update schema barrel export to include both new tables

lib/db/schema/gamePlatformSupport.ts

@@ -0,0 +1,61 @@
+import {
+  boolean,
+  pgEnum,
+  pgTable,
+  text,
+  timestamp,
+  unique,
+} from "drizzle-orm/pg-core"
+import { games } from "./games"
+import { hardware } from "./hardware"
+
+export const protonStatusEnum = pgEnum("proton_status", [
+  "native",
+  "proton",
+  "unsupported",
+  "unknown",
+])
+
+export const antiCheatStatusEnum = pgEnum("anti_cheat_status", [
+  "none",
+  "supported",
+  "unsupported",
+  "unknown",
+])
+
+export const gamePlatformSupport = pgTable(
+  "game_platform_support",
+  {
+    id: text("id")
+      .primaryKey()
+      .$defaultFn(() => crypto.randomUUID()),
+    gameId: text("game_id")
+      .notNull()
+      .references(() => games.id, { onDelete: "cascade" }),
+    hardwareSlug: text("hardware_slug")
+      .notNull()
+      .references(() => hardware.slug, { onDelete: "restrict" }),
+
+    // Compatibility
+    isSupported: boolean("is_supported").default(false).notNull(),
+    protonStatus: protonStatusEnum("proton_status")
+      .default("unknown")
+      .notNull(),
+
+    // Anti-cheat details
+    antiCheatRelevant: boolean("anti_cheat_relevant")
+      .default(false)
+      .notNull(),
+    antiCheatName: text("anti_cheat_name"),
+    antiCheatVersion: text("anti_cheat_version"),
+    antiCheatStatus: antiCheatStatusEnum("anti_cheat_status")
+      .default("unknown")
+      .notNull(),
+
+    createdAt: timestamp("created_at").defaultNow().notNull(),
+    updatedAt: timestamp("updated_at").defaultNow().notNull(),
+  },
+  (table) => [
+    unique("game_hardware_unique").on(table.gameId, table.hardwareSlug),
+  ]
+)