Find data-quality problems in a Quicken for Mac file: uncategorized transactions,
possible duplicates, transfers with a missing other side, accounts that stopped updating,
old uncleared transactions, holdings without prices, and missing exchange rates.
Use when the user says "/quicken-hygiene", "clean up my quicken data", "what needs
categorizing", "find duplicates in quicken", "which accounts are stale", "check my
quicken data", or before trusting totals from other quicken-* skills.
