Summary

• include Obsidian frontmatterLinks when collecting referenced attachment paths
• extract frontmatter wiki links in the CLI metadata adapter so plugin and CLI scans behave consistently
• add scanner and CLI regression coverage

Root cause

The orphan attachment scanner considered links and embeds from note bodies but not Obsidian's cached frontmatter links. Attachments referenced only from frontmatter could therefore be reported as orphaned.

Impact

Attachments referenced through frontmatter wiki links are no longer false positives in either plugin or CLI scans.

Fixes #92

Validation

• npm run lint
• npm run lint:obsidian-warnings
• npm run build
• npm test — 18 test files, 166 tests
• npm pack --dry-run
• manual UI verification in Obsidian 1.12.7 using /Users/Roger/my-vault: a real orphan remained visible while two frontmatter-referenced SVG attachments were excluded
• verified the developer console contained no plugin errors