why: release the `Attributes`-section field fix and the class-field
descriptions across the argparse, FastMCP, and theme dataclasses.

what:
- Bump all workspace packages 0.0.1a35 -> 0.0.1a36
- Date CHANGES entry for 0.0.1a36 (2026-07-26)
- Add 0.0.1a37 unreleased header