Queueing, prepping to fetch

A lot more to go, but this is the core.

Need to think about how to test the queue handlers.

Makefile

@@ -5,3 +5,6 @@ generate:
 	cd internal/domain64 ; make generate
 	cd internal/liteq ; sqlc generate
 	cd internal/liteq ; make schema-const
+
+run: generate
+	go run cmd/api/*.go