Initial commit: Telegram Management System

Full-stack web application for Telegram management
- Frontend: Vue 3 + Vben Admin
- Backend: NestJS
- Features: User management, group broadcast, statistics

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

marketing-agent/frontend/src/components/templates/VariableHelp.vue

@@ -0,0 +1,63 @@
+<template>
+  <div class="variable-help">
+    <el-collapse v-model="activeNames">
+      <el-collapse-item
+        v-for="category in variableCategories"
+        :key="category.category"
+        :title="category.category"
+        :name="category.category"
+      >
+        <el-table :data="category.variables" stripe>
+          <el-table-column prop="name" label="Variable" width="200">
+            <template #default="{ row }">
+              <code>{{ '{{' + row.name + '}}' }}</code>
+            </template>
+          </el-table-column>
+          <el-table-column prop="type" label="Type" width="100">
+            <template #default="{ row }">
+              <el-tag size="small">{{ row.type }}</el-tag>
+            </template>
+          </el-table-column>
+          <el-table-column prop="description" label="Description" />
+        </el-table>
+      </el-collapse-item>
+    </el-collapse>
+  </div>
+</template>
+
+<script setup>
+import { ref, onMounted } from 'vue'
+import api from '@/api'
+
+const activeNames = ref([])
+const variableCategories = ref([])
+
+const loadVariables = async () => {
+  try {
+    const response = await api.get('/api/v1/template-variables/available')
+    variableCategories.value = response.data.variables
+    activeNames.value = [variableCategories.value[0]?.category]
+  } catch (error) {
+    console.error('Failed to load variables:', error)
+  }
+}
+
+onMounted(() => {
+  loadVariables()
+})
+</script>
+
+<style scoped>
+.variable-help {
+  max-height: 500px;
+  overflow-y: auto;
+}
+
+code {
+  background: #f5f7fa;
+  padding: 2px 6px;
+  border-radius: 3px;
+  font-size: 13px;
+  color: #409eff;
+}
+</style>