# Change: Implement Frontend API Integration and Data Processing

## Why
The current frontend implementation lacks complete API integration, data structure conversion, and a unified time-based sorting mechanism. This change aims to complete these critical features to enable proper data flow between the frontend and backend.

## What Changes
- Implement complete API calls with proper request methods, parameters, and error handling
- Design and implement data structure conversion logic for backend responses
- Implement unified time-based sorting mechanism for all data (newest first, oldest last)
- Update existing components to use real API data instead of mock data
- Ensure consistent error handling across all API calls

## Impact
- Affected specs: backend-admin, backend-api
- Affected code: admin-web/src/views/, admin-web/src/utils/
- Dependencies: axios, vue-router, pinia
