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/package.json

@@ -0,0 +1,33 @@
+{
+  "name": "public-frontend",
+  "version": "0.1.0",
+  "private": true,
+  "scripts": {
+    "dev": "next dev",
+    "build": "next build",
+    "start": "next start",
+    "lint": "next lint",
+    "typecheck": "tsc --noEmit"
+  },
+  "dependencies": {
+    "@ant-design/icons": "^6.2.5",
+    "@ant-design/nextjs-registry": "^1.3.0",
+    "antd": "^6.4.4",
+    "dayjs": "^1.11.21",
+    "html5-qrcode": "^2.3.8",
+    "next": "14.2.35",
+    "photoswipe": "^5.4.4",
+    "react": "^18",
+    "react-dom": "^18",
+    "react-photoswipe-gallery": "^4.1.2",
+    "zustand": "^5.0.14"
+  },
+  "devDependencies": {
+    "@types/node": "^20",
+    "@types/react": "^18",
+    "@types/react-dom": "^18",
+    "eslint": "^8",
+    "eslint-config-next": "14.2.35",
+    "typescript": "^5"
+  }
+}