Wp 7280 express docs

[derranW26]

Summary

This PR enables API documentation generation for the Express ping endpoint only. This is the first in a series of smaller PRs to gradually enable documentation for all Express API endpoints while keeping diffs manageable for the development team.

Background

The build-systems service uses OpenAI to generate API documentation from the express_entry.ts file. When all endpoints were enabled at once, the initial commit produced a diff that was too large (>10k lines), making it difficult for the development team to review.

Changes

• ✅ Enabled ExpressPingApiSpec (ping endpoint) for documentation generation
• ✅ Commented out all other API endpoint specs (38 remaining endpoints)
• ✅ Commented out unnecessary imports
• ✅ Updated ExpressApi type and object to only include ExpressPingApiSpec
• ✅ Added PostSignerMacaroon import to match index.ts (commented out for now)

Next Steps

This PR will be followed by additional PRs that enable endpoints in batches:

• Large endpoints (400+ lines): Will be committed individually
• Medium endpoints (200-400 lines): Will be committed individually
• Smaller endpoints (<200 lines): Will be batched in groups of 5

This approach ensures each PR's documentation diff stays under ~1,500-2,000 lines, making reviews more manageable.

Testing

• Branch rebased onto latest master
• File updated to match latest index.ts structure
• Only ping endpoint enabled
• All other endpoints commented out

Related

• Ticket: WP-7280
• Follow-up PRs will enable remaining endpoints incrementally

[pranavjain97]

Not sure what this PR is doing? Why is it only uncommenting the ping endpoint?

[derranW26]

This shouldnt be a PR, Im using this branch to run the Express Api pipeline on