Add @-commands to tools/query.py, rewrite TODO.md, pytest config improvement

[gvanrossum-ms]

• Add @-commands to tools/query.py (hardly the "small" task Copilot thought it would be)
• Move 'test' argument from pytest args to pyproject.toml
• Completely redid TODO.md using grouping by topic, priorities, and sizes (estimated by various LLMs)

[Copilot]

Pull Request Overview

This PR adds interactive @-command support to the query tool (tools/query.py), enabling users to dynamically control debug settings, run partial pipeline stages, view statistics, and access help documentation. The changes also include test configuration updates to use pytest's standard test discovery mechanism.

• Adds four @-commands: @help, @debug, @stage, and @stats with argument parsing and error handling
• Implements command routing in the interactive loop to detect and handle lines starting with @
• Updates test configuration to use pytest's testpaths setting for more consistent test discovery

Reviewed Changes

Copilot reviewed 6 out of 6 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
tools/query.py	Adds shlex import, implements @-command infrastructure including command handlers, argument parsing, and interactive loop integration
test/test_mcp_server.py	Updates test query from "Who is the host of this podcast?" to "Who is Kevin Scott?"
pyproject.toml	Adds testpaths = ["test"] configuration for pytest test discovery
make.bat	Removes explicit test directory argument from pytest command (relies on testpaths config)
TODO.md	Major reorganization: adds priority levels (P0-P3) and size estimates, groups tasks by component/feature area
Makefile	Removes explicit test directory argument from pytest commands (relies on testpaths config)