Relocate scripts/check_lambda_zip_size.py to
backend/app/requirements/, right beside the requirements.txt it's
built to measure, since it's specific to the fastapi lambda rather
than a generic repo script.
While moving it, also make the excludes list self-updating: the
script now reads zip_excludes straight out of
deployment/terraform/modules/lambda_with_api_gateway/variables.tf
by default instead of duplicating it as CLI flags, so the CI check
and the actual Terraform packaging can't drift apart. requirements.txt
defaults to the sibling file too, so both the CI step and local runs
now collapse to a bare `check_lambda_zip_size.py` invocation.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
dev deploys have failed since PR #1231 (2026-06-15) with
InvalidParameterValueException: Unzipped size must be smaller than
262144000 bytes. The lambda zip is built from the whole repo root
(deployment/terraform/modules/lambda_with_api_gateway) and only
excluded tests/deployment/pycache — so .git (206MB packed), the
per-schema corpus.jsonl fixtures under backend/epc_api/json_samples/
(~50MB), and the sap10_calculator PDF specs (~13MB) were all being
zipped up even though none of them are read at runtime.
Also add scripts/check_lambda_zip_size.py, which mirrors the
terraform module's pip install + zip-with-excludes behaviour to
report the projected unzipped size without mutating the repo, and
wire it into deploy_terraform.yml as a fast_api_lambda_zip_size_check
job that gates the real deploy so this fails fast with a clear
message instead of surfacing as an opaque Terraform/AWS error.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
