config.workspace.include was completely ignored by the walker — connector.rs
log_scope_include_warning literally said "handled by extractor router" but
no extractor router exists. Dogfooding (PR #142 1B + multi-root corpus
kebab-docs + httpx + zod + lodash) showed user-set include of code+md still
ingested 84 .png + 8 .pdf files.
Fix: walker treats scope.include as an allow-list — empty Vec preserves
backward-compat (all files pass), non-empty requires file path to match at
least one pattern (AND with the existing exclude rules). Removed the
misleading debug log.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>