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/api/hardware.ts

@@ -0,0 +1,11 @@
+import { createCrudRoutes } from "./crud-builder"
+import { hardware } from "@/lib/db/schema"
+
+export const hardwareRoutes = createCrudRoutes(hardware, {
+  prefix: "/hardware",
+  name: "Hardware",
+  tags: ["Hardware"],
+  primaryKey: "slug",
+  auth: { read: "public", write: "admin", delete: "admin" },
+  filter: { fields: ["deviceType"] },
+})