feat: 消耗分析+认证修复+套装更新+认证简化

商业核算:
- 芳香调理技术作为体验项目，使用真实配方数据
- 新增消耗分析：每种精油可做次数、哪个最先消耗完、最多可做几次

个人库存:
- 芳香调理套装改为正确精油列表

商业认证:
- 简化为商户名+证明图片
- 通过后内容保持显示
- 用户管理页面根据用户实际认证状态显示（修复拒绝后又通过仍显示已拒绝）

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

frontend/src/views/Projects.vue

@@ -13,14 +13,14 @@
     </div>
 
     <div v-if="!selectedProject" class="project-list">
-      <!-- Demo project (always visible) -->
+      <!-- Demo: use real 芳香调理技术 recipe -->
       <div class="project-card demo-card" @click="openDemo">
         <div class="proj-header">
-          <span class="proj-name">芳香调理（示意）</span>
+          <span class="proj-name">芳香调理技术</span>
           <span class="proj-badge">体验</span>
         </div>
         <div class="proj-summary">
-          <span>点击查看示意项目</span>
+          <span>点击体验成本利润分析</span>
         </div>
       </div>
       <!-- Real projects -->
@@ -181,6 +181,27 @@
         </div>
       </div>
 
+      <!-- Consumption Analysis -->
+      <div v-if="consumptionData.length" class="consumption-section">
+        <h4>🧪 消耗分析</h4>
+        <table class="consumption-table">
+          <thead>
+            <tr><th>精油</th><th>单次用量</th><th>瓶装容量</th><th>可做次数</th></tr>
+          </thead>
+          <tbody>
+            <tr v-for="c in consumptionData" :key="c.oil" :class="{ 'limit-oil': c.isLimit }">
+              <td>{{ c.oil }}</td>
+              <td>{{ c.drops }}滴</td>
+              <td>{{ c.bottleDrops }}滴</td>
+              <td>{{ c.sessions }}次</td>
+            </tr>
+          </tbody>
+        </table>
+        <div class="consumption-summary">
+          <span>⚠️ <strong>{{ limitingOil }}</strong> 最先消耗完，最多可做 <strong>{{ maxSessions }}</strong> 次</span>
+        </div>
+      </div>
+
       <!-- Notes -->
       <div class="notes-section">
         <h4>📝 备注</h4>
@@ -268,24 +289,21 @@ function handleCreateProject() {
   createProject()
 }
 
-// Demo project data (local only, per user)
-const demoProject = ref(null)
 function openDemo() {
-  demoProject.value = {
+  // Find the real 芳香调理技术 recipe
+  const recipe = recipeStore.recipes.find(r => r.name.includes('芳香调理技术') || r.name === '芳香调理')
+  const ings = recipe ? recipe.ingredients.map(i => ({ ...i })) : [{ oil: '芳香调理', drops: 12 }, { oil: '椰子油', drops: 186 }]
+  selectedProject.value = {
     _demo: true,
-    name: '芳香调理（示意）',
-    ingredients: [
-      { oil: '芳香调理', drops: 12 },
-      { oil: '椰子油', drops: 186 },
-    ],
+    name: recipe ? recipe.name : '芳香调理技术',
+    ingredients: ings,
     packaging_cost: 5,
     labor_cost: 30,
     other_cost: 10,
     selling_price: 198,
     quantity: 1,
-    notes: '这是一个示意项目，您可以修改数字体验功能',
+    notes: '体验项目：修改数字不会影响其他用户',
   }
-  selectedProject.value = demoProject.value
 }
 
 async function createProject() {
@@ -416,6 +434,31 @@ const batchRevenue = computed(() => {
   return (selectedProject.value?.selling_price || 0) * (selectedProject.value?.quantity || 1)
 })
 
+const consumptionData = computed(() => {
+  if (!selectedProject.value) return []
+  const ings = (selectedProject.value.ingredients || []).filter(i => i.oil && i.oil !== '椰子油' && i.drops > 0)
+  return ings.map(i => {
+    const meta = oils.oilsMeta[i.oil]
+    const bottleDrops = meta ? meta.dropCount : 0
+    const sessions = bottleDrops > 0 && i.drops > 0 ? Math.floor(bottleDrops / i.drops) : 0
+    return { oil: i.oil, drops: i.drops, bottleDrops, sessions, isLimit: false }
+  })
+})
+
+const limitingOil = computed(() => {
+  const data = consumptionData.value.filter(c => c.sessions > 0)
+  if (!data.length) return ''
+  const min = data.reduce((a, b) => a.sessions < b.sessions ? a : b)
+  min.isLimit = true
+  return min.oil
+})
+
+const maxSessions = computed(() => {
+  const data = consumptionData.value.filter(c => c.sessions > 0)
+  if (!data.length) return 0
+  return Math.min(...data.map(c => c.sessions))
+})
+
 function formatDate(d) {
   if (!d) return ''
   return new Date(d).toLocaleDateString('zh-CN')
@@ -433,6 +476,13 @@ function formatDate(d) {
 .commercial-icon { font-size: 48px; margin-bottom: 8px; }
 .commercial-desc { font-size: 14px; color: var(--text-light, #999); }
 .demo-card { border-style: dashed !important; opacity: 0.85; }
+.consumption-section { margin-bottom: 20px; padding: 14px; background: #f8f7f5; border-radius: 12px; border: 1.5px solid #e5e4e7; }
+.consumption-section h4 { margin: 0 0 12px; font-size: 14px; color: #3e3a44; }
+.consumption-table { width: 100%; border-collapse: collapse; font-size: 13px; margin-bottom: 10px; }
+.consumption-table th { text-align: left; padding: 6px 8px; color: #999; font-size: 12px; border-bottom: 1px solid #eee; }
+.consumption-table td { padding: 6px 8px; border-bottom: 1px solid #f5f5f5; }
+.consumption-table .limit-oil { background: #fff3e0; font-weight: 600; }
+.consumption-summary { font-size: 13px; color: #e65100; padding: 8px; background: #fff8e1; border-radius: 8px; }
 .proj-badge {
   font-size: 10px; background: #fff3e0; color: #e65100; padding: 2px 8px; border-radius: 8px;
 }