docs(examples): add Express WorkPaper route smoke

[gregkonush]

Outcome

Add a copy-paste Express adapter smoke example for the serverless WorkPaper API route. The example should adapt an Express request to a web-standard Request, call the shared WorkPaper handler, and copy the returned Response back to Express.

Likely files

• docs/serverless-workpaper-api-route.md
• examples/serverless-workpaper-api/README.md
• optionally examples/serverless-workpaper-api/express-route.ts

Suggested approach

Use the existing Express section in the serverless route docs as the source. Keep the snippet narrow: JSON body parsing, method/path handling, call handleWorkPaperRequest(), return status/body/headers. Avoid building a full Express app unless it stays tiny.

Acceptance proof

• The docs or example include the adapter code and a curl request that returns calculated WorkPaper output.
• The example explains the one translation step from Express request/response to Fetch Request/Response.
• A local check such as pnpm docs:discovery:check still passes.

Scope check

• Reviewable in one sitting.
• One clear validation command or artifact.
• No broad architecture knowledge required.
• Should stay open for a new contributor unless it becomes urgent.

[saurabhsingh72487-hub]

Hi! I reviewed the current implementation and noticed that examples/serverless-workpaper-api/framework-adapters.ts already includes an Express adapter (createExpressWorkPaperHandler) that converts Express requests into Fetch Request, calls handleWorkPaperRequest(), and writes the resulting Response back to Express.

Before opening a PR, could you clarify whether the goal is documentation-only (README walkthrough + curl validation) or extracting/simplifying the existing adapter into a dedicated example?

[gregkonush]

Fixed on main in 8d0d530ba490fa053e2dc1c7594c6c5301dcab0b.

What changed:

• Added an Express route smoke transcript with a copy-paste curl request and computed WorkPaper readback.
• Added framework-adapters to examples/serverless-workpaper-api's npm test path, so the Express/Fastify/Hono/Oak/AdonisJS/Hapi wrappers stay covered.
• Updated stale serverless WorkPaper transcript byte counts from 1195 to the current verified 1194.
• Added docs discovery guards for the Express route smoke, curl request, and framework-adapter test coverage.

Verification:

• pnpm --dir examples/serverless-workpaper-api install --ignore-workspace --lockfile=false
• pnpm --dir examples/serverless-workpaper-api run framework-adapters
• pnpm --dir examples/serverless-workpaper-api run test
• pnpm docs:discovery:check
• pnpm format:check
• pnpm lint
• pnpm analyze:quality
• BILIG_ALLOW_LOCAL_CI_RESOURCE_GUARD=1 BILIG_EXCEL_ORACLE_RUN=0 BILIG_EXCEL_ORACLE_DISABLE=1 BILIG_FUZZ_SKIP_BROWSER=1 pnpm run ci
• GitHub github-ci: https://github.com/proompteng/bilig/actions/runs/26699450809