fix : restore wsgi.input stream after middleware body read so request.get_json() works in views

[0x070907]

Summary

Closes #185

The fix reads environ["wsgi.input"] directly before Request(environ) is called, then immediately restores it with a fresh BytesIO. Flask's Request then wraps the restored stream and request.get_json() works correctly.

Why

Any Flask view that calls request.get_json() or request.get_data(), after the middleware ran, would silently receive an empty body. The bug was hidden in existing tests because no test view ever read the request body.

Scope

• bug fix
• documentation
• tests
• TUI / CLI improvement
• framework integration
• signal change
• configuration or route-policy change

Changes

adiuvare/integrations/flask.py - Added import io, moved body reading before Request(environ), restored wsgi.input with BytesIO
tests/test_flask.py - Added test_flask_request_json_readable_after_middleware_inspection

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Verification

Commands run:

pip install -e .

pytest tests/test_flask.py::test_flask_request_json_readable_after_middleware_inspection -v

Screenshots

before the fix

after the fix

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Notes:

• I ran the relevant tests locally
• I updated docs if behavior changed
• I updated screenshots if the TUI changed materially

Signal-specific notes

• not applicable

TUI notes

• not applicable

Local-only file check

• I did not accidentally stage local-only files such as adiuvare.yaml or local conftest.py changes