ux(ui): readable persona form instead of raw JSON + step-by-step guides for non-IT users

- GroupEdit: replace raw JSON persona dump with a labeled, sectioned PersonaForm
  (ข้อมูลพื้นฐาน / ข้อมูลลูกค้า / การขาย / ช่องทาง) shown in a modal; admin edits by field.
- New reusable components/PersonaForm.vue.
- GroupBuilder + Personas: add friendly step-by-step guidance cards ('วิธีสร้าง',
  'วิธีฝึก') so admins/trainees know what to do at each step.
- Rebuild dist.

frontend/src/views/GroupEdit.vue

@@ -1,37 +1,58 @@
 <template>
   <div>
-    <router-link to="/" class="btn-back">← {{ i18n.t('dashboard') }}</router-link>
-    <div class="row" style="align-items:center;margin-bottom:16px">
-      <h2 style="margin:0">{{ i18n.t('groupBuilder') }} — {{ group && group.title }}</h2>
-      <button class="primary" style="margin-left:auto" @click="analyze" :disabled="busy">
-        <span v-if="busy" class="spinner" style="margin-right:4px"></span>{{ i18n.t('analyze') }}
-      </button>
+    <router-link to="/training" class="btn-back">← {{ i18n.t('training') }}</router-link>
+    <div class="row" style="align-items:center;margin-bottom:8px">
+      <h2 style="margin:0">🛠 {{ i18n.t('managePersonas') }}</h2>
+      <div class="row" style="margin-left:auto;gap:10px">
+        <button @click="analyze" :disabled="busy" class="primary">
+          <span v-if="busy" class="spinner"></span>{{ busy ? 'กำลังสร้าง…' : '✨ สร้าง/วิเคราะห์บุคคลต้นแบบ' }}
+        </button>
+      </div>
+    </div>
+    <p class="muted" v-if="group">สินค้า: <strong>{{ group.title }}</strong></p>
+
+    <div class="error" v-if="error" style="margin:12px 0">{{ error }}</div>
+
+    <!-- Step guidance -->
+    <div class="card guide">
+      <strong>วิธีใช้หน้านี้</strong>
+      <ol style="margin:8px 0 0;padding-left:20px;line-height:1.8">
+        <li>กดปุ่ม <strong>✨ สร้าง/วิเคราะห์บุคคลต้นแบบ</strong> เพื่อให้ระบบสร้างลูกค้าจำลอง 15 คน (ระดับ A/B/C)</li>
+        <li>แต่ละการ์ดคือลูกค้าจำลอง 1 คน — กด <strong>✏️ แก้ไข</strong> เพื่อปรับรายละเอียดให้ตรงใจ</li>
+        <li>เมื่อพร้อมให้ผู้ใช้ฝึก กด <strong>เปิดใช้งาน</strong> (ยังทำในขั้นถัดไป)</li>
+      </ol>
     </div>
-    <div class="error" v-if="error">{{ error }}</div>
 
     <div v-if="personas.length === 0 && !busy" class="card empty-state">
-      <strong>No personas yet</strong>
-      <span>Click {{ i18n.t('analyze') }} to generate the 15 personas (5 per tier).</span>
+      <strong>ยังไม่มีบุคคลต้นแบบ</strong>
+      <span>กด "✨ สร้าง/วิเคราะห์บุคคลต้นแบบ" เพื่อให้ระบบสร้างลูกค้าจำลองให้</span>
     </div>
 
+    <!-- Persona list -->
     <div v-for="tier in ['A','B','C']" :key="tier" style="margin-bottom:20px">
       <h4>{{ tierLabel(tier) }}</h4>
       <div class="grid">
         <div v-for="p in byTier(tier)" :key="p.id" class="card pcard">
-          <div class="row">
+          <div class="row" style="justify-content:space-between;align-items:center">
             <strong>{{ p.name }}</strong>
-            <span class="badge" v-if="p.special === 'wrong_text'">⚠️ wrong_text</span>
+            <span class="badge" :class="tierClass(p.tier)">{{ p.tier }}</span>
           </div>
-          <div class="muted">{{ p.profession }} · {{ p.age_group }} · {{ p.channel }} · {{ p.initiation_mode }}</div>
-          <div class="muted" style="margin-top:4px">diff {{ p.difficulty }} · {{ p.income }} · {{ p.personality }}</div>
-          <details style="margin-top:8px" open>
-            <summary>{{ i18n.t('reveal') }}</summary>
-            <pre class="json">{{ JSON.stringify(p, null, 2) }}</pre>
-          </details>
-          <button @click="editPersona(p)">✏️ Edit</button>
+          <div class="diff">
+            <span v-for="n in 5" :key="n" class="star" :class="{ on: n <= (p.difficulty || 1) }">★</span>
+          </div>
+          <div class="muted">{{ p.profession }} · {{ p.age_group }} · {{ p.location }}</div>
+          <div class="muted">{{ p.channel }} · {{ p.initiation_mode === 'seller' ? 'เริ่มขายเอง' : 'ลูกค้าทักก่อน' }}</div>
+          <button class="edit-btn" @click="openEdit(p)">✏️ แก้ไขรายละเอียด</button>
         </div>
       </div>
     </div>
+
+    <!-- Edit modal -->
+    <div v-if="editing" class="modal-backdrop" @click.self="editing=null">
+      <div class="modal">
+        <PersonaForm :persona="editing" @save="savePersona" @cancel="editing=null" />
+      </div>
+    </div>
   </div>
 </template>
 
@@ -40,6 +61,7 @@ import { onMounted, ref } from 'vue'
 import { useRoute } from 'vue-router'
 import { api } from '../api'
 import { i18n } from '../i18n'
+import PersonaForm from '../components/PersonaForm.vue'
 
 const route = useRoute()
 const gid = route.params.gid
@@ -47,6 +69,7 @@ const group = ref(null)
 const personas = ref([])
 const busy = ref(false)
 const error = ref('')
+const editing = ref(null)
 
 async function load() {
   const data = await api.getGroup(gid)
@@ -55,9 +78,9 @@ async function load() {
 }
 function byTier(t) { return personas.value.filter((p) => p.tier === t) }
 function tierLabel(t) { return i18n.t(t === 'A' ? 'tierA' : t === 'B' ? 'tierB' : 'tierC') }
+function tierClass(t) { return { A: 'tier-a', B: 'tier-b', C: 'tier-c' }[t] || '' }
 async function analyze() {
-  busy.value = true
-  error.value = ''
+  busy.value = true; error.value = ''
   try {
     const data = await api.analyzeGroup(gid)
     personas.value = data.personas
@@ -65,23 +88,29 @@ async function analyze() {
   } catch (e) { error.value = e.message }
   finally { busy.value = false }
 }
-function editPersona(p) {
-  const json = prompt('Edit persona JSON (full fields):', JSON.stringify(p, null, 2))
-  if (!json) return
+function openEdit(p) { editing.value = JSON.parse(JSON.stringify(p)) }
+async function savePersona(payload) {
+  busy.value = true
   try {
-    const parsed = JSON.parse(json)
-    api.updatePersona(gid, p.id, parsed).then(load)
-  } catch (e) { error.value = 'Invalid JSON: ' + e.message }
+    await api.updatePersona(gid, editing.value.id, payload)
+    editing.value = null
+    await load()
+  } catch (e) { error.value = e.message }
+  finally { busy.value = false }
 }
 onMounted(load)
 </script>
 
 <style scoped>
-.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 14px; }
+.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 14px; }
 .pcard { display: flex; flex-direction: column; }
-.pcard button { margin-top: auto; }
-.json {
-  background: #0f172a; color: #9ca3af; padding: 10px; border-radius: 8px;
-  font-size: 11px; overflow: auto; max-height: 220px;
-}
+.edit-btn { margin-top: auto; }
+.star { color: #d8dbe3; }
+.star.on { color: #f59e0b; }
+.badge.tier-a { background: #dcfce7; color: #166534; }
+.badge.tier-b { background: #fef9c3; color: #854d0e; }
+.badge.tier-c { background: #fee2e2; color: #991b1b; }
+.guide { background: #eef2ff; border-color: #c7d2fe; margin-bottom: 16px; }
+.modal-backdrop { position: fixed; inset: 0; background: rgba(15,23,42,.5); display: flex; justify-content: center; align-items: flex-start; padding: 40px 16px; z-index: 50; overflow: auto; }
+.modal { background: #fff; border-radius: 14px; padding: 24px; width: 100%; max-width: 720px; box-shadow: 0 20px 50px rgba(0,0,0,.25); }
 </style>