修复客户订单列设置持久化并统一最新计费量展示

src/modules/first-leg/utils/orderColumnPreferences.ts

@@ -0,0 +1,35 @@
+interface OrderColumnPreferences {
+  visibleColumnKeys: string[]
+  orderedColumnKeys: string[]
+}
+
+function storageKey(ownerId: string) {
+  return `cc:client:first-leg:order-columns:${ownerId}`
+}
+
+export function readOrderColumnPreferences(ownerId: string, selectableKeys: string[], defaultVisibleKeys: string[]): OrderColumnPreferences {
+  const defaults = { visibleColumnKeys: [...defaultVisibleKeys], orderedColumnKeys: [...selectableKeys] }
+  if (!ownerId) return defaults
+  try {
+    const saved: unknown = JSON.parse(localStorage.getItem(storageKey(ownerId)) ?? 'null')
+    if (!saved || typeof saved !== 'object') return defaults
+    const preferences = saved as Partial<OrderColumnPreferences>
+    if (!Array.isArray(preferences.visibleColumnKeys) || !Array.isArray(preferences.orderedColumnKeys)) return defaults
+    const validKeys = (keys: unknown[]) => [...new Set(keys.filter((key): key is string => typeof key === 'string' && selectableKeys.includes(key)))]
+    return {
+      visibleColumnKeys: validKeys(preferences.visibleColumnKeys),
+      orderedColumnKeys: [...new Set([...validKeys(preferences.orderedColumnKeys), ...selectableKeys])],
+    }
+  } catch {
+    return defaults
+  }
+}
+
+export function saveOrderColumnPreferences(ownerId: string, preferences: OrderColumnPreferences) {
+  if (!ownerId) return
+  try {
+    localStorage.setItem(storageKey(ownerId), JSON.stringify(preferences))
+  } catch {
+    // Column selection remains usable when browser storage is unavailable.
+  }
+}