serve.users.<key>.server_cdm accepts a list of service tags; retry re-attaches the job service and a bare string no longer fails open. An unset client server_cdm now follows the server's per-service /tracks flag.
Renames 314 defs and 41 module/class-level constants. Keeps 11 names underscored where the stripped form collides in scope, plus 5.5.0 shims for the three symbols external service repos call.