Express app.get() config getter misidentified as route #7

Problem

Express.js `app.get('setting')` (config getter with 1 argument) is misidentified as a route registration. This creates false positive Route nodes.

Example: `app.get('env')` returns the environment setting, not a GET route at `/env`.

Root Cause

The route detection in the HTTP link pipeline doesn't check argument arity. Express `app.get()` with 1 argument is a config getter; with 2+ arguments it's a route registration.

Fix

In the Express route detection logic:

1. Check if `app.get()` has 2+ arguments (path + handler) — this is a route
2. If it has only 1 argument — this is a config getter, skip it

Test Repo

express-js: any Express.js project with `app.get('env')` or similar config calls.

Impact

Eliminates false positive routes in JavaScript/Express projects. Currently JS scores 50% — this fix removes noise from route queries.

References

• Benchmark report: `BENCHMARK_REPORT.md` (JavaScript section)
• HTTP link pipeline: `internal/httplink/`