Normalize path facts once at the owning filesystem boundary, preserve caller spelling and unavailable inventory members, and retain typed read failures. Record exclusion entry kinds so only proven directories can establish descendant symlink targets; omitted legacy kinds stay unknown.
Reviewed fixes include #1969, #2642, #2759, and #2994.
Validation: 26 reference graph source tests passed; prior artifact checks passed 275 tests with one Windows-only skip. Updated compiled import workflows are included in final validation after regeneration.
Record the exact matching pattern and distinguish project, default, caller, and configured-sensitive exclusions without changing ignore ordering. Include that provenance in graph commitments and validate the contract through compiled CLI and MCP consumers.
BREAKING CHANGE: Pattern-based reference graph exclusions require pattern and distinguish project-ignored and default-ignored reasons. Re-import saved graphs that omit matching patterns.
morluto