将固定系统账户的分类账明细从每个卡片内部展开改为在卡片网格下方
的公共区域显示。点击任一账户的"查看明细"按钮，明细表格在下方
完整展示，提供更好的阅读体验。
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Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
在固定系统账户卡片下方添加"查看明细"按钮，点击后展开显示
该账户的分类账流水记录，包括时间、类型、金额、余额和备注。
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
- wallet-service: 新增 getOfflineSettlementEntries 方法和 API
- reporting-service: 新增客户端方法和 API 转发
- admin-web: 添加明细列表组件和样式，支持展开/收起
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
## Changes
- Add system account report aggregation APIs in reporting-service
- Add internal statistics APIs in wallet-service, reward-service, authorization-service
- Add system accounts tab in admin-web statistics page
- Enhanced metadata in reward entries for traceability
## Backend Changes
- wallet-service: Add offline settlement summary and system accounts balances APIs
- reward-service: Add expired rewards summary API
- authorization-service: Add fixed accounts list, region accounts summary APIs
- reporting-service: Add HTTP clients and aggregation service for system account reports
## Frontend Changes
- admin-web: Add SystemAccountsTab component with fixed accounts, region summaries,
offline settlement stats, and expired rewards display
## Rollback Instructions
Each file includes rollback comments with [2026-01-04] tag marking new additions.
To rollback: delete files marked as new, remove code sections marked with date comments.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
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