@cfxlabsinc/b2b-services
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    Variable MANDATORY_VENDOR_MATCHERConst

    MANDATORY_VENDOR_MATCHER: Partial<Record<Vendor, RuleGroup>> = ...

    System-owned predicates that gate which routes a given vendor can fulfill. AND-ed with the DB-side route matcher at resolve time, so a route can only win if BOTH the operator-authored matcher AND the vendor's physics matcher pass against the criteria.

    "Physics" = constraints the vendor itself imposes and operators can't waive (e.g. Dart only works for customers with a Victor ledger program, because Dart ACH flows are realized through Victor virtual accounts). Co-located with the predicate code that depends on it so it deploys atomically with the service changes that introduce the fields.

    Rendered read-only in the admin matcher editor (MatcherEditor with vendor set) so operators can see why a route is being rejected.

    Vendors absent from this map have no mandatory matcher — their routes are gated solely by the operator-authored matcher.