Automate ALN updates and test workbook generation

[LynnMHouston]

Related tickets

#5615

Description of changes

• Adds automation for fetching Assistance Listing Numbers (ALNs) from
  the SAM.gov Assistance Listings API; introduces fetch_alns_from_sam.py to retrieve Active and Inactive
  ALNs and generate source CSVs.
• Integrates ALN fetching into the schema build pipeline via the
  Makefile (make fetch_alns and make all).
• Adds build_test_workbooks.py to automatically generate Cypress
  test workbooks using fixture data.
• Introduces test_workbook_fixtures.json as a source of consistent
  test data.
• Updates make all to include test workbook generation, eliminating
  the need for manual updates.

How to test

1. Set your SAM.gov API key: export SAM_API_KEY="your-key" (or in
   PowerShell: $env:SAM_API_KEY="your-key")

2. Run full pipeline: make all

3. Verify:

   • ALNs are fetched from SAM.gov (look for "Fetched Active/Inactive
     page..." logs)
   • active-alns.csv and inactive-alns.csv are generated
   • cfda-lookup.csv is created via merge
   • Excel workbooks are rebuilt in output/excel/xlsx/
   • Cypress test workbooks are generated in
     cypress/fixtures/test_workbooks/

4. Optional:

   • Open a generated workbook and confirm expected structure and
     validations
   • Confirm test workbooks contain fixture data

[github-actions]

Package	Line Rate	Branch Rate	Health
.	100%	100%	✔
api	98%	86%	✔
api.serializers	97%	88%	✔
api.views	91%	96%	✔
audit	95%	80%	✔
audit.cross_validation	97%	86%	✔
audit.fixtures	84%	50%	❌
audit.formlib	92%	62%	✔
audit.intakelib	89%	83%	➖
audit.intakelib.checks	92%	86%	✔
audit.intakelib.common	98%	82%	✔
audit.intakelib.transforms	100%	95%	✔
audit.management.commands	78%	17%	❌
audit.migrations	100%	100%	✔
audit.models	91%	69%	✔
audit.templatetags	100%	100%	✔
audit.test_viewlib	100%	100%	✔
audit.views	75%	52%	❌
census_historical_migration	96%	65%	✔
census_historical_migration.migrations	100%	100%	✔
census_historical_migration.sac_general_lib	92%	84%	✔
census_historical_migration.transforms	95%	90%	✔
census_historical_migration.workbooklib	68%	69%	❌
config	78%	37%	❌
curation	94%	86%	✔
curation.curationlib	91%	71%	✔
curation.management.commands	46%	34%	❌
curation.migrations	100%	100%	✔
dissemination	90%	70%	✔
dissemination.analytics	27%	0%	❌
dissemination.forms	80%	30%	❌
dissemination.migrations	97%	25%	✔
dissemination.models	100%	100%	✔
dissemination.report_generation	21%	0%	❌
dissemination.report_generation.excel	32%	0%	❌
dissemination.searchlib	61%	44%	❌
dissemination.templatetags	52%	6%	❌
dissemination.views	67%	47%	❌
djangooidc	53%	38%	❌
djangooidc.tests	100%	94%	✔
report_submission	100%	96%	✔
report_submission.migrations	100%	100%	✔
report_submission.templatetags	74%	100%	❌
report_submission.views	78%	61%	❌
support	94%	75%	✔
support.migrations	100%	100%	✔
support.models	90%	50%	➖
tools	98%	50%	✔
users	95%	86%	✔
users.fixtures	100%	83%	✔
users.management	100%	100%	✔
users.management.commands	100%	100%	✔
users.migrations	100%	100%	✔
Summary	88% (22532 / 25479)	69% (2741 / 3994)	➖

Minimum allowed line rate is 85%