fix(erlang): -include_lib import extraction not returning source/names correctly

[carlos-alm]

Pre-existing failure on feat/parity-skill branch discovered during #1471 work.

tests/parsers/erlang.test.ts line 140 fails:

records -include_lib with kind "include_lib" so consumers resolve against OTP paths
AssertionError: expected undefined to be defined

The test expects that -include_lib("kernel/include/file.hrl") produces an import with source === 'kernel/include/file.hrl' and names === ['include_lib'], but the extractor returns undefined.

This is unrelated to #1471 (node parity for jelly-micro fixture) and predates that fix.