travel_subsidy

# Travel Subsidy

Use this skill only when the user provides **two zip archives** named exactly:

- `发票.zip`
- `火车票.zip`

The archives contain:
- invoice / ticket files (`.pdf`, `.jpg`, `.jpeg`, `.png`, `.webp`)
- and at least one structured data table describing the corresponding files

This skill calculates which records can be used to support **出差补助** and produces two result zip packages.

## Goal

Process the two archives as follows:

1. Unzip both archives into a dedicated run directory.
2. Read the included structured tables.
3. Match each table row to its corresponding file by filename or stable file identifier.
4. Do **not** OCR the files unless the table is obviously unusable or missing required fields.
5. Build a chronological travel evidence set.
6. Infer travel city / route information:
   - for train tickets: use the provided 始发站/到达站所在城市 fields directly
   - for invoices: infer city from `备注`
     - if it is a lodging invoice, determine the hotel city from the hotel name
     - if it is an air-ticket-related invoice, extract route/city information from `备注`
7. Determine which records can support a valid 出差补助 claim.
8. Put the records/files related to 出差补助 into one folder.
9. Put all remaining records/files into another folder.
10. Produce two zip outputs:
    - Zip 1: 出差补助计算表 + 出差补助相关文件
    - Zip 2: 剩余文件 + 剩余信息整理表
11. Report progress to the user at every key node.

## Mandatory progress updates

You must give the user a visible progress update at every key node.

At minimum, send these updates:

1. `已收到发票.zip和火车票.zip，开始检查压缩包`
2. `压缩包检查完成，开始解压文件`
3. `解压完成，开始识别数据表和票据文件`
4. `已识别发票数据表与火车票数据表，开始读取结构化信息`
5. `结构化信息读取完成，开始建立文件与表格行的对应关系`
6. `对应关系建立完成，开始提取城市与行程信息`
7. `城市与行程信息提取完成，开始组装出差行程`
8. `出差行程组装完成，开始计算可报销出差补助`
9. `计算完成，开始拆分补助相关文件和...