feat(db): add hardware seed script, db:seed command, and initial migration

- Create lib/db/seed.ts with idempotent hardware seeding
- Add db:seed script and fix db:* scripts to load .env.local via bun --env-file
- Generate initial Drizzle migration (0000_crazy_nick_fury)
- Apply migration and seed 3 hardware devices (steamdeck-oled, steamdeck-lcd, steam-machine)

lib/db/seed.ts

@@ -0,0 +1,47 @@
+import "dotenv/config"
+import { drizzle } from "drizzle-orm/node-postgres"
+import { Pool } from "pg"
+import { hardware } from "./schema/hardware"
+
+const pool = new Pool({
+  connectionString: process.env.DATABASE_URL,
+})
+
+const db = drizzle(pool)
+
+async function seed() {
+  console.log("Seeding hardware table...")
+
+  const devices = [
+    {
+      slug: "steamdeck-oled",
+      name: "Steam Deck OLED",
+      deviceType: "handled" as const,
+    },
+    {
+      slug: "steamdeck-lcd",
+      name: "Steam Deck LCD",
+      deviceType: "handled" as const,
+    },
+    {
+      slug: "steam-machine",
+      name: "Steam Machine",
+      deviceType: "console" as const,
+    },
+  ]
+
+  for (const device of devices) {
+    await db
+      .insert(hardware)
+      .values(device)
+      .onConflictDoNothing({ target: hardware.slug })
+  }
+
+  console.log(`Seeded ${devices.length} hardware devices.`)
+  await pool.end()
+}
+
+seed().catch((err) => {
+  console.error("Seed failed:", err)
+  process.exit(1)
+})