Coarse role taxonomy over standardized titles

Collapses the ~250-value title.standard vocabulary (produced by titleclassifier) into four coarse roles used by cross-organization linkage and by interlock studies:

BOARD

Governance body and its officers – board/trustee members and the elected governance officers (president, vice president, secretary, treasurer, chair) whether or not prefixed with BOARD. Per the interlock use case, the governance triad (president/treasurer/secretary) is treated as BOARD, not OFFICER.

OFFICER

Paid executive leadership – the C-suite (CHIEF ... OFFICER, CEO/CFO/COO/...), executive director, general manager, general counsel, comptroller. These are the management officers, distinct from the volunteer governance officers above.

STAFF

Other paid employees – functional directors (DIRECTOR OF ..., MEDICAL DIRECTOR), functional vice presidents (VICE PRESIDENT OF ...), managers, coordinators, administrators, clerks, generic employees.

OTHER

Anything not matched above – role-specific or organization- specific titles (e.g. CHAPLAIN, SERGEANT AT ARMS, HISTORIAN, CONSULTANT, MILITARY). Unmatched titles land here by design so the classifier is safe on the tail of the vocabulary; audit them with title_role_coverage() and pin exceptions via the overrides argument.

Details

The distinction that does the work: a governance title carrying a functional qualifier (... OF FINANCE, ... OF MARKETING) is a paid post, not a governance seat, so any title containing " OF " is excluded from BOARD (VICE PRESIDENT -> BOARD, but VICE PRESIDENT OF FINANCE -> STAFF).