Sync wiki: add PD-Contributing.md; add PD-Cross-Validation.md; add PD-Dataset-Generation.md; add PD-Gap-Detection.md; add PD-Overview.md; add PD-Results.md; add PD-Source-Models.md; add PD-User-Guide.md; add _Sidebar.md; add src/a-rule-routine.svg + more

nikitin-pro committed Jun 20, 2026