assess: preserve stale flask-request-reader branch (2021)

[thorwhalen]

Assessment, not a merge request

Preserving a stale (2021-11-08, 5 years old), never-PR'd branch from an external contributor (Steve Herzog, analog.com) before deleting the raw ref, per the fleet's stale-branch cleanup convention.

Content: `stream2py/sources/flask_request.py` (61 lines) — a `FlaskRequestReader(SourceReader)` that reads from an in-flight Flask request. Self-contained, no other files touched, no tests, flask not declared as a dependency anywhere in the branch.

Not merging: no tests, no CI run against it (predates the current wads-based CI entirely -- based on a pre-pyproject.toml tree), flask would need to become an optional/extras dependency, and there's no way to verify it still matches the current SourceReader interface without dedicated review. Real, plausibly-useful example code, not obviously wrong -- worth a look if a Flask-based source reader is ever wanted, but not something to land unattended.

Closing this PR immediately after opening it; the commit stays reachable via this PR's diff and merge-base even after the raw branch ref is deleted.

🤖 Generated with Claude Code

https://claude.ai/code/session_011HSBVhDjRU4apSLcRkavv9

[thorwhalen]

Preserved via this PR's diff; deleting the stale branch ref (see PR body for the assessment).