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/src/layouts/components/DefaultLayoutWithVerticalNav.vue

@@ -0,0 +1,54 @@
+<script lang="ts" setup>
+import navItems from '@/navigation/vertical'
+import { themeConfig } from '@themeConfig'
+
+// Components
+import Footer from '@/layouts/components/Footer.vue'
+import NavbarThemeSwitcher from '@/layouts/components/NavbarThemeSwitcher.vue'
+import UserProfile from '@/layouts/components/UserProfile.vue'
+import NavBarI18n from '@core/components/I18n.vue'
+
+// @layouts plugin
+import { VerticalNavLayout } from '@layouts'
+</script>
+
+<template>
+  <VerticalNavLayout :nav-items="navItems">
+    <!-- 👉 navbar -->
+    <template #navbar="{ toggleVerticalOverlayNavActive }">
+      <div class="d-flex h-100 align-center">
+        <IconBtn
+          id="vertical-nav-toggle-btn"
+          class="ms-n3 d-lg-none"
+          @click="toggleVerticalOverlayNavActive(true)"
+        >
+          <VIcon
+            size="26"
+            icon="tabler-menu-2"
+          />
+        </IconBtn>
+
+        <NavbarThemeSwitcher />
+
+        <VSpacer />
+
+        <NavBarI18n
+          v-if="themeConfig.app.i18n.enable && themeConfig.app.i18n.langConfig?.length"
+          :languages="themeConfig.app.i18n.langConfig"
+        />
+        <UserProfile />
+      </div>
+    </template>
+
+    <!-- 👉 Pages -->
+    <slot />
+
+    <!-- 👉 Footer -->
+    <template #footer>
+      <Footer />
+    </template>
+
+    <!-- 👉 Customizer -->
+    <!-- <TheCustomizer /> -->
+  </VerticalNavLayout>
+</template>