Vendor Chatwoot Vue 3 frontend into frontend/

Copy the Chatwoot (v4.14.0) frontend runnable subset into frontend/ for
customization:
- app/javascript/ (Vue SPA: dashboard, widget, sdk, portal, superadmin)
- app/views/ (ERB templates for vite-plugin-ruby entrypoint resolution)
- app/helpers/, app/assets/ (Rails view helpers, static assets)
- enterprise/ (Enterprise edition frontend overlay)
- config/vite.json, vite.config.ts, bin/vite (Vite-Rails toolchain)
- package.json, pnpm-lock.yaml, tailwind/postcss/eslint configs
- Gemfile, Gemfile.lock (vite_rails gem for bin/vite binstub)

Excluded Rails backend: controllers, models, services, jobs, mailers,
policies, db, lib, spec, public, node_modules.

Update references to the new frontend location:
- .gitignore: exclude frontend build artifacts (node_modules, tmp, packs),
  keep frontend/bin/ and frontend/vendor/ via negation
- backend/scripts/parity_frontend_smoke.sh: CHATWOOT_DIR default
  reference/chatwoot -> ../frontend
- backend/scripts/parity_frontend_browser_smoke.mjs: same default update
- AGENTS.md: add frontend section with Rails/Vite coupling notes
- README: architecture tree includes frontend/

frontend/app/javascript/dashboard/components-next/AssignmentPolicy/components/DataTable.vue

@@ -0,0 +1,104 @@
+<script setup>
+import Avatar from 'next/avatar/Avatar.vue';
+import Icon from 'dashboard/components-next/icon/Icon.vue';
+import Button from 'dashboard/components-next/button/Button.vue';
+import Spinner from 'dashboard/components-next/spinner/Spinner.vue';
+
+defineProps({
+  items: {
+    type: Array,
+    default: () => [],
+  },
+  isFetching: {
+    type: Boolean,
+    default: false,
+  },
+  emptyStateMessage: {
+    type: String,
+    default: '',
+  },
+});
+
+const emit = defineEmits(['delete', 'navigate']);
+
+const handleDelete = itemId => {
+  emit('delete', itemId);
+};
+
+const handleNavigate = item => {
+  emit('navigate', item);
+};
+</script>
+
+<template>
+  <div
+    v-if="isFetching"
+    class="flex items-center justify-center py-3 w-full text-n-slate-11"
+  >
+    <Spinner />
+  </div>
+  <div
+    v-else-if="items.length === 0 && emptyStateMessage"
+    class="custom-dashed-border flex items-center justify-center py-6 w-full"
+  >
+    <span class="text-sm text-n-slate-11">
+      {{ emptyStateMessage }}
+    </span>
+  </div>
+  <div v-else class="flex flex-col divide-y divide-n-weak">
+    <div
+      v-for="item in items"
+      :key="item.id"
+      class="grid grid-cols-4 items-center gap-3 min-w-0 w-full justify-between h-[3.25rem] ltr:pr-2 rtl:pl-2"
+    >
+      <button
+        type="button"
+        class="flex items-center gap-2 col-span-2 hover:bg-n-alpha-1 dark:hover:bg-n-alpha-2 rounded-lg py-1 px-1.5 -ml-1.5 transition-colors cursor-pointer group"
+        @click="handleNavigate(item)"
+      >
+        <Icon
+          v-if="item.icon"
+          :icon="item.icon"
+          class="size-4 text-n-slate-12 flex-shrink-0"
+        />
+        <Avatar
+          v-else
+          :title="item.name"
+          :src="item.avatarUrl"
+          :name="item.name"
+          :size="20"
+          rounded-full
+        />
+        <span
+          class="text-sm text-n-slate-12 truncate min-w-0 group-hover:text-n-blue-11 dark:group-hover:text-n-blue-10 transition-colors"
+        >
+          {{ item.name }}
+        </span>
+        <Icon
+          icon="i-lucide-external-link"
+          class="size-3.5 text-n-slate-10 opacity-0 group-hover:opacity-100 transition-opacity flex-shrink-0"
+        />
+      </button>
+
+      <div class="flex items-start gap-2 col-span-1">
+        <span
+          :title="item.email || item.phoneNumber"
+          class="text-sm text-n-slate-12 truncate min-w-0"
+        >
+          {{ item.email || item.phoneNumber }}
+        </span>
+      </div>
+
+      <div class="col-span-1 justify-end flex items-center">
+        <Button
+          icon="i-lucide-trash"
+          slate
+          ghost
+          sm
+          type="button"
+          @click="handleDelete(item.id)"
+        />
+      </div>
+    </div>
+  </div>
+</template>