fix(assets): 区域车型分解新增「待交车」字段，并合入「其他」车型

- typeBreakdown 之前只产 4.5T/18T/49T 且仅含 inventory 字段，
  导致区域级 待交车 与车型级 待:N 不一致、操作中合计 != 区域合计
- 后端 getTypeBreakdown 计算 pending（status==='Pending'），
  并把不属 4.5T/18T/49T 的车辆聚合为「其他」类型
- 前端区域 mobile/desktop 视图把「待:」从 inventory 改读 pending
- 点击穿透的 category 也由 'Inventory' 改 'Pending'

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

src/server/routes/vehicles.ts

@@ -793,11 +793,21 @@ app.get('/region-stats', async (c) => {
     cityMap.get(city)!.push(v);
   }
 
-  const getTypeBreakdown = (vList: Vehicle[]) =>
-    ['4.5T', '18T', '49T'].map((type) => {
-      const tv = vList.filter((v) => v.type === type);
-      return { type, total: tv.length, operating: tv.filter((v) => v.status === 'Operating').length, inventory: tv.filter((v) => v.status === 'Inventory').length, customers: Array.from(new Set(tv.map((v) => v.customerName).filter(Boolean))) as string[] };
-    }).filter((t) => t.total > 0);
+  const getTypeBreakdown = (vList: Vehicle[]) => {
+    const KNOWN = ['4.5T', '18T', '49T'] as const;
+    const make = (label: string, tv: Vehicle[]) => ({
+      type: label,
+      total: tv.length,
+      operating: tv.filter((v) => v.status === 'Operating').length,
+      inventory: tv.filter((v) => v.status === 'Inventory').length,
+      pending: tv.filter((v) => v.status === 'Pending').length,
+      customers: Array.from(new Set(tv.map((v) => v.customerName).filter(Boolean))) as string[],
+    });
+    const known = KNOWN.map((type) => make(type, vList.filter((v) => v.type === type)));
+    const other = vList.filter((v) => !KNOWN.includes(v.type as typeof KNOWN[number]));
+    if (other.length > 0) known.push(make('其他', other));
+    return known.filter((t) => t.total > 0);
+  };
 
   const regionOrder = ['华东', '华南', '华北', '华中', '西南', '西北', '其他'];
   const result = regionOrder