#1576's crash in sourceLocalPath was already fixed in v1.42.0.0 (dual-shape
handling). But the readers disagreed: sourceLocalPath accepted both the wrapped
{sources:[...]} object (v0.20+) and a bare array, while probeSource and
sourcePageCount accepted only the wrapped shape. Extract one parseSourcesList()
normalizer and route all three through it, so the shape assumption lives in a
single place. This is also the base the #1734 remote_url audit builds on.
parseSourcesList returns [] for null/garbage rather than throwing; callers treat
'no rows' as absent. New test/gbrain-sources-parse.test.ts pins both shapes plus
the garbage paths and confirms config.remote_url survives for the audit.
#1576 is closeable as already-fixed in v1.42.0.0.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Garry Tan