Rename customs-tablet-frontend to public-frontend and add new features

- Rename customs-tablet-frontend/ to public-frontend/ for broader scope
- Add new pages: customs, inspection with camera integration
- Add new services: apiClient.ts, backendApi.ts, normalizers.ts
- Add CameraFrame component for real-time video streaming
- Add scan_fixer module with clock_publisher and timestamp fix utilities
- Update startup scripts to support new frontend structure
- Update arm_server configuration and service files

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

public-frontend/src/store/useAppStore.ts

@@ -0,0 +1,39 @@
+'use client';
+
+import { create } from 'zustand';
+import type { CustomsDeclaration, InspectionState, Notification, User } from '@/types';
+
+interface AppState {
+  user: User | null;
+  notifications: Notification[];
+  selectedCustoms: CustomsDeclaration | null;
+  inspection: InspectionState | null;
+  setUser: (user: User | null) => void;
+  addNotification: (notification: Notification) => void;
+  markNotificationRead: (id: string) => void;
+  setSelectedCustoms: (customs: CustomsDeclaration | null) => void;
+  setInspection: (inspection: InspectionState | null) => void;
+  updateInspectionStatus: (status: InspectionState['status']) => void;
+}
+
+export const useAppStore = create<AppState>((set) => ({
+  user: { name: '张三', role: '海关查验员' },
+  notifications: [
+    { id: '1', title: '系统通知', message: '远程查验前端已连接真实后端接口', time: '当前', read: false },
+  ],
+  selectedCustoms: null,
+  inspection: null,
+
+  setUser: (user) => set({ user }),
+  addNotification: (notification) => set((state) => ({ notifications: [notification, ...state.notifications] })),
+  markNotificationRead: (id) => set((state) => ({
+    notifications: state.notifications.map((notification) => (
+      notification.id === id ? { ...notification, read: true } : notification
+    )),
+  })),
+  setSelectedCustoms: (selectedCustoms) => set({ selectedCustoms }),
+  setInspection: (inspection) => set({ inspection }),
+  updateInspectionStatus: (status) => set((state) => ({
+    inspection: state.inspection ? { ...state.inspection, status } : null,
+  })),
+}));