[Tooling] Add protocheck status-errors subcmd to check for non-gRPC status error returns

makefiles/checks.mk

@@ -153,3 +153,10 @@ check_proto_unstable_marshalers: ## Check that all protobuf files have the `stab
 fix_proto_unstable_marshalers: ## Ensure the `stable_marshaler_all` option is present on all protobuf files.
 	go run ./tools/scripts/protocheck/cmd unstable --fix
 	${MAKE} proto_regen
+
+MODULE ?= "*"
+LEVEL ?= "info"
+
+.PHONY: check_grpc_status_errors
+check_grpc_status_errors: ## Check that all gRPC service handlers return gRPC status errors.
+	go run ./tools/scripts/protocheck/cmd status-errors -m ${MODULE} -l ${LEVEL}

pkg/polylog/polyzero/options.go

@@ -50,3 +50,11 @@ func WithSetupFn(fn func(logger *zerolog.Logger)) polylog.LoggerOption {
 		fn(&logger.(*zerologLogger).Logger)
 	}
 }
+
+// TODO_IN_THIS_COMMIT: godoc & test...
+func WithWriter(writer io.Writer) polylog.LoggerOption {
+	return func(logger polylog.Logger) {
+		zl := logger.(*zerologLogger).Logger
+		logger.(*zerologLogger).Logger = zl.Output(writer)
+	}
+}