Dimension G: Service Participation Trust Matcher
Full specification is in04_dimension_c_resident_advocate.md (Dimension G section)
and the implementation is in 07_System_Architecture/03_resident_backend.md
(findCompatibleProviders() function).
Core principle: Trust tier compatibility + behavioral compatibility +
property context + repeat hire history. Not just proximity and price.
Inclusion rule: Bronze-tier users receive appropriate matches at every tier.
The algorithm does not optimize exclusively for top-tier transactions.