manage-refs

Cross-cutting reference manager for medical manuscripts. Single entry point for citation-key validation, journal-CSL pandoc rendering, manuscript ↔ DOCX cross-reference QC, marker conversion ([N] ↔ [@key]), and native Zotero CWYW field-code injection. Replaces the inline reference-handling that previously lived in /write-paper Phase 7.6 and is reused by /revise, /peer-review, /sync-submission, and any skill that…