A throwaway, admin-only diagnostic for the deferred contacts <-> fundraising_contacts
consolidation: GET /api/admin/contacts-census + a Settings -> Admin "Run census" button
report the A/B/C populations (linked / contacts-only / pill-only) plus the
communications/opportunities repointing surface. Counts only, no PII -- mirrors
backend/scripts/contacts_census.sql so the numbers can be read off the box without a
shell. All pieces are tagged TEMPORARY; delete the endpoint + route + button after the
census is captured. No schema change. 45/45 tests, render-smoke green.
Keysat
6e760b19ee