[doc] need to document that if the protos change you have to update poe gen-proto

[rysweet]

What feature would you like to be added?

if you change the global .proto files you have to run

cd python
python -m pip instal uv
uv sync --all-extras
source .venv/bin/activate
poe gén-proto

Why is this needed?

perhaps we could add this to the build if the protos have changed?

[jackgerrits]

This is checked in CI to ensure it remains in sync:

autogen/.github/workflows/checks.yml

Line 144 in 0214299

check-proto-changes-python:

[jackgerrits]

CI checks this, closing