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/AssignmentCard/AssignmentCard.story.vue

@@ -0,0 +1,63 @@
+<script setup>
+import AssignmentCard from './AssignmentCard.vue';
+
+const agentAssignments = [
+  {
+    id: 1,
+    title: 'Assignment policy',
+    description: 'Manage how conversations get assigned in inboxes.',
+    features: [
+      {
+        icon: 'i-lucide-circle-fading-arrow-up',
+        label: 'Assign by conversations evenly or by available capacity',
+      },
+      {
+        icon: 'i-lucide-scale',
+        label: 'Add fair distribution rules to avoid overloading any agent',
+      },
+      {
+        icon: 'i-lucide-inbox',
+        label: 'Add inboxes to a policy - one policy per inbox',
+      },
+    ],
+  },
+  {
+    id: 2,
+    title: 'Agent capacity policy',
+    description: 'Manage workload for agents.',
+    features: [
+      {
+        icon: 'i-lucide-glass-water',
+        label: 'Define maximum conversations per inbox',
+      },
+      {
+        icon: 'i-lucide-circle-minus',
+        label: 'Create exceptions based on labels and time',
+      },
+      {
+        icon: 'i-lucide-users-round',
+        label: 'Add agents to a policy - one policy per agent',
+      },
+    ],
+  },
+];
+</script>
+
+<template>
+  <Story
+    title="Components/AgentManagementPolicy/AssignmentCard"
+    :layout="{ type: 'grid', width: '1000px' }"
+  >
+    <Variant title="Assignment Card">
+      <div class="px-4 py-4 bg-n-background flex gap-6 justify-between">
+        <AssignmentCard
+          v-for="(item, index) in agentAssignments"
+          :key="index"
+          :title="item.title"
+          :description="item.description"
+          :features="item.features"
+        />
+      </div>
+    </Variant>
+  </Story>
+</template>

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

@@ -0,0 +1,49 @@
+<script setup>
+import Icon from 'dashboard/components-next/icon/Icon.vue';
+import Button from 'dashboard/components-next/button/Button.vue';
+import CardLayout from 'dashboard/components-next/CardLayout.vue';
+
+defineProps({
+  title: { type: String, default: '' },
+  description: { type: String, default: '' },
+  features: { type: Array, default: () => [] },
+});
+
+const emit = defineEmits(['click']);
+
+const handleClick = () => {
+  emit('click');
+};
+</script>
+
+<template>
+  <CardLayout class="[&>div]:px-5 cursor-pointer" @click="handleClick">
+    <div class="flex flex-col items-start gap-2">
+      <div class="flex justify-between w-full items-center">
+        <h3 class="text-n-slate-12 text-heading-2">{{ title }}</h3>
+        <Button
+          xs
+          slate
+          ghost
+          icon="i-lucide-chevron-right"
+          @click.stop="handleClick"
+        />
+      </div>
+      <p class="text-n-slate-11 text-body-para mb-0">{{ description }}</p>
+    </div>
+
+    <ul class="flex flex-col items-start gap-3 mt-3">
+      <li
+        v-for="feature in features"
+        :key="feature.id"
+        class="flex items-center gap-3 text-body-para"
+      >
+        <Icon
+          :icon="feature.icon"
+          class="text-n-slate-11 size-4 flex-shrink-0"
+        />
+        {{ feature.label }}
+      </li>
+    </ul>
+  </CardLayout>
+</template>