refactor: convert to bun workspaces monorepo

- Move web app into apps/web/
- Create packages/shared/ with shared types
- Create plugins/decky-vault/ scaffold
- Root package.json manages workspaces only

apps/web/lib/db/schema/hardware.ts

@@ -0,0 +1,14 @@
+import { integer, pgEnum, pgTable, real, text, timestamp } from "drizzle-orm/pg-core"
+
+export const deviceTypeEnum = pgEnum("device_type", ["handheld", "console"])
+
+export const hardware = pgTable("hardware", {
+  slug: text("slug").primaryKey(),
+  name: text("name").notNull(),
+  deviceType: deviceTypeEnum("device_type").notNull(),
+  image: text("image"),
+  wattHours: real("watt_hours"),
+  tdpMax: real("tdp_max"),
+  sortOrder: integer("sort_order").default(0).notNull(),
+  createdAt: timestamp("created_at").defaultNow().notNull(),
+})