refactor: align codebase with EventCrew domain and trim legacy band stack

- Update API: events, users, policies, routes, resources, migrations
- Remove deprecated models/resources (customers, setlists, invitations, etc.)
- Refresh admin app and docs; remove apps/band

Made-with: Cursor

apps/app/shims.d.ts

@@ -0,0 +1,14 @@
+declare module '*.vue' {
+  import type { DefineComponent } from 'vue'
+  
+  const component: DefineComponent<{}, {}, any>
+  export default component
+}
+
+
+declare module 'vue-prism-component' {
+  import { ComponentOptions } from 'vue'
+  const component: ComponentOptions
+  export default component
+}
+declare module 'vue-shepherd';