Add check results summary and python packages summary reports

## Overview

Add check results summary harvest report and python packages summary harvest report.

## Requirements

- Add check_results_summary harvest report to auditree category
- Add python_packages_summary harvest report to aidotree category

## Approach

- see req.
- tbd

## Security and Privacy

N/A

## Test Plan

tbd

Start by locating existing harvest reports and the auditree and aidotree category registrations. Use those as templates to determine the required inputs and output shape for check_results_summary and python_packages_summary, then verify both reports are discoverable under their requested categories.

Written by the indexing model from the issue text.