feat: add positions management admin tab + career advisor homepage entry

- admin.vue: new '岗位' tab with CRUD list/modal/api functions/styles
- index.vue: add AI择业顾问 entry card linking to career page
- Backend CRUD endpoints already exist, no backend changes needed

zhiyin-app/src/pages/admin/admin.vue

@@ -21,6 +21,7 @@
         <text class="tab" :class="{ active: tab === 'orders' }" @click="switchTab('orders')">订单</text>
         <text class="tab" :class="{ active: tab === 'pricing' }" @click="switchTab('pricing')">定价</text>
         <text class="tab" :class="{ active: tab === 'share' }" @click="switchTab('share')">分享</text>
+        <text class="tab" :class="{ active: tab === 'positions' }" @click="switchTab('positions')">岗位</text>
         <text class="tab" :class="{ active: tab === 'admins' }" @click="switchTab('admins')">管理</text>
       </view>
 
@@ -272,6 +273,31 @@
           <text class="empty-text" v-if="!shareLoading && shareVisitors.length === 0">暂无访问记录</text>
         </view>
       </view>
+      <!-- 岗位管理 -->
+      <view v-if="tab === 'positions'" class="section">
+        <view class="search-bar">
+          <text class="section-label" style="flex:1;margin:0">岗位列表（{{ positions.length }}）</text>
+          <button class="search-btn" @click="openPositionModal(null)">新增岗位</button>
+        </view>
+        <view class="position-mgr-list" v-if="!posLoading">
+          <view class="pos-mgr-row" v-for="p in positions" :key="p._id">
+            <view class="pos-mgr-main">
+              <text class="pos-mgr-cat" :class="p.category === 'ai' ? 'cat-ai' : 'cat-tr'">{{ p.category === 'ai' ? 'AI' : '传统' }}</text>
+              <view class="pos-mgr-body">
+                <text class="pos-mgr-name">{{ p.name }}</text>
+                <text class="pos-mgr-meta">{{ p.company || '-' }} · {{ p.salary || '-' }} · sort:{{ p.sort }}</text>
+              </view>
+            </view>
+            <view class="pos-mgr-actions">
+              <text class="pos-mgr-btn edit" @click="openPositionModal(p)">编辑</text>
+              <text class="pos-mgr-btn del" @click="deletePosition(p._id, p.name)">删除</text>
+            </view>
+          </view>
+          <text class="empty-text" v-if="positions.length === 0 && !posLoading">暂无岗位</text>
+        </view>
+        <text class="loading-text" v-if="posLoading">加载中...</text>
+      </view>
+
       <!-- 额度调整弹窗 -->
       <view class="modal-mask" v-if="creditModal.show" @click="closeCreditModal">
         <view class="modal-content" @click.stop>
@@ -286,6 +312,32 @@
           </view>
         </view>
       </view>
+
+      <!-- 岗位编辑弹窗 -->
+      <view class="modal-mask" v-if="posModal.show" @click="closePositionModal">
+        <view class="modal-content" @click.stop>
+          <text class="modal-title">{{ posModal.isNew ? '新增岗位' : '编辑岗位' }}</text>
+          <view class="cfg-row"><text>岗位名称</text><input class="cfg-input" v-model="posForm.name" placeholder="必填" /></view>
+          <view class="cfg-row"><text>薪资</text><input class="cfg-input" v-model="posForm.salary" placeholder="如 15-25K" /></view>
+          <view class="cfg-row"><text>公司</text><input class="cfg-input" v-model="posForm.company" placeholder="如 字节跳动" /></view>
+          <view class="cfg-row"><text>排序</text><input class="cfg-input" type="digit" v-model.number="posForm.sort" /></view>
+          <view class="cfg-row"><text>分类</text>
+            <picker :range="['AI岗位','传统岗位']" @change="e => posForm.category = e.detail.value === 0 ? 'ai' : 'traditional'">
+              <text class="cfg-val">{{ posForm.category === 'ai' ? 'AI岗位' : '传统岗位' }}</text>
+            </picker>
+          </view>
+          <view class="cfg-row"><text>启用</text>
+            <picker :range="['启用','停用']" @change="e => posForm.active = e.detail.value === 0" :value="posForm.active ? 0 : 1">
+              <text class="cfg-val">{{ posForm.active ? '启用' : '停用' }}</text>
+            </picker>
+          </view>
+          <view class="modal-actions">
+            <button class="modal-btn cancel" @click="closePositionModal">取消</button>
+            <button class="modal-btn confirm" @click="savePosition">保存</button>
+          </view>
+        </view>
+      </view>
+
       <!-- 管理员 -->
       <view v-if="tab === 'admins'" class="section">
         <view class="search-bar">
@@ -356,6 +408,20 @@ const sprintPriceTemp = ref(49.9)
 const growthFeaturesText = ref('')
 const sprintFeaturesText = ref('')
 
+// Position management
+const positions = ref([])
+const posLoading = ref(false)
+const posModal = ref({ show: false, isNew: false })
+const posForm = reactive({
+  name: '',
+  salary: '',
+  company: '',
+  icon: '',
+  sort: 0,
+  active: true,
+  category: 'ai',
+})
+
 const growthPriceDisplay = computed(() => growthPriceTemp.value.toFixed(1))
 const sprintPriceDisplay = computed(() => sprintPriceTemp.value.toFixed(1))
 
@@ -421,6 +487,7 @@ const switchTab = (t) => {
   tab.value = t
   if (t === 'users' && users.value.length === 0) loadUsers()
   if (t === 'interviews' && interviews.value.length === 0) loadInterviews()
+  if (t === 'positions') loadPositions()
   if (t === 'resumes' && resumes.value.length === 0) loadResumes()
   if (t === 'admins' && adminList.value.length === 0) loadAdmins()
   if (t === 'pricing') loadPricing()
@@ -540,6 +607,84 @@ const loadAdmins = async () => {
   } catch(e) { console.error(e) }
 }
 
+// ─── 岗位管理 ──────────────────────
+const apiPositions = (path, opts = {}) => {
+  return uni.request({
+    url: api('/positions' + path),
+    method: opts.method || 'POST',
+    header: { 'Authorization': `Bearer ${token()}`, 'Content-Type': 'application/json', ...opts.headers },
+    data: opts.body || opts.data,
+  })
+}
+
+const loadPositions = async () => {
+  posLoading.value = true
+  try {
+    const res = await apiPositions('/admin/list')
+    if (res.statusCode === 200) positions.value = res.data || []
+  } catch (e) { console.error(e) }
+  finally { posLoading.value = false }
+}
+
+const openPositionModal = (position) => {
+  if (position) {
+    posForm.name = position.name || ''
+    posForm.salary = position.salary || ''
+    posForm.company = position.company || ''
+    posForm.icon = position.icon || ''
+    posForm.sort = position.sort ?? 0
+    posForm.active = position.active ?? true
+    posForm.category = position.category || 'traditional'
+    posModal.value = { show: true, isNew: false }
+  } else {
+    posForm.name = ''
+    posForm.salary = ''
+    posForm.company = ''
+    posForm.icon = ''
+    posForm.sort = positions.value.length + 1
+    posForm.active = true
+    posForm.category = 'ai'
+    posModal.value = { show: true, isNew: true }
+  }
+}
+
+const closePositionModal = () => {
+  posModal.value = { show: false, isNew: false }
+}
+
+const savePosition = async () => {
+  if (!posForm.name.trim()) {
+    uni.showToast({ title: '岗位名称不能为空', icon: 'none' })
+    return
+  }
+  try {
+    const res = await apiPositions('/admin/save', {
+      method: 'POST', body: { ...posForm },
+    })
+    if (res.statusCode === 200) {
+      uni.showToast({ title: '保存成功', icon: 'success' })
+      closePositionModal()
+      loadPositions()
+    } else throw new Error()
+  } catch { uni.showToast({ title: '保存失败', icon: 'none' }) }
+}
+
+const deletePosition = (id, name) => {
+  uni.showModal({
+    title: '删除岗位', content: `确定删除"${name}"？`,
+    success: async (r) => {
+      if (!r.confirm) return
+      try {
+        const res = await apiPositions('/admin/' + id, { method: 'DELETE' })
+        if (res.statusCode === 200) {
+          uni.showToast({ title: '已删除', icon: 'success' })
+          loadPositions()
+        } else throw new Error()
+      } catch { uni.showToast({ title: '删除失败', icon: 'none' }) }
+    },
+  })
+}
+
 const searchAdmin = async () => {
   if (!adminKeyword.value.trim()) return
   try {
@@ -740,4 +885,18 @@ const doAdjustCredits = async () => {
 .modal-btn { flex: 1; height: 72rpx; border-radius: var(--radius-sm); font-size: 26rpx; border: none; }
 .modal-btn.cancel { background: #F3F4F6; color: var(--color-text-secondary); }
 .modal-btn.confirm { background: var(--color-primary); color: #FFF; }
+/* ─── 岗位管理 ───── */
+.position-mgr-list { display: flex; flex-direction: column; gap: 8rpx; }
+.pos-mgr-row { background: #FFF; padding: 16rpx; border-radius: var(--radius-sm); display: flex; align-items: center; gap: 12rpx; }
+.pos-mgr-main { flex: 1; display: flex; align-items: center; gap: 12rpx; }
+.pos-mgr-cat { font-size: 18rpx; padding: 2rpx 12rpx; border-radius: var(--radius-round); font-weight: 600; }
+.pos-mgr-cat.cat-ai { background: #EEF2FF; color: var(--color-primary); }
+.pos-mgr-cat.cat-tr { background: #F3F4F6; color: var(--color-text-tertiary); }
+.pos-mgr-body { display: flex; flex-direction: column; }
+.pos-mgr-name { font-size: 24rpx; font-weight: 600; color: var(--color-text); }
+.pos-mgr-meta { font-size: 20rpx; color: var(--color-text-tertiary); margin-top: 2rpx; }
+.pos-mgr-actions { display: flex; gap: 8rpx; }
+.pos-mgr-btn { font-size: 20rpx; padding: 4rpx 16rpx; border-radius: var(--radius-round); }
+.pos-mgr-btn.edit { color: var(--color-primary); border: 2rpx solid var(--color-primary); }
+.pos-mgr-btn.del { color: #EF4444; border: 2rpx solid #EF4444; }
 </style>

zhiyin-app/src/pages/index/index.vue

@@ -43,6 +43,15 @@
           </view>
           <text class="fp-action">开始</text>
         </view>
+        <view class="feature-secondary" style="margin-bottom: 16rpx;">
+          <view class="fs-card card" @click="goCareer">
+            <view class="fs-top">
+              <view class="fs-icon fs-progress"><text class="fs-emoji">🎯</text></view>
+              <text class="fs-name">AI 择业顾问</text>
+            </view>
+            <text class="fs-brief">专业分析 · 岗位匹配 · 智能推荐</text>
+          </view>
+        </view>
         <view class="feature-tertiary">
           <view class="fs-card card" @click="goResume">
             <view class="fs-top">
@@ -246,6 +255,7 @@ const goProgress = () => uni.navigateTo({ url: '/pages/progress/progress' })
 const goContribute = () => uni.navigateTo({ url: '/pages/contribute/contribute' })
 const goBank = () => uni.navigateTo({ url: '/pages/company-bank/bank' })
 const goInternship = () => uni.navigateTo({ url: '/pages/internship/internship' })
+const goCareer = () => uni.navigateTo({ url: '/pages/career/career' })
 
 const startInterview = (pos) => uni.navigateTo({ url: `/pages/interview/interview?position=${encodeURIComponent(pos.name)}` })
 </script>