feat: establish the bounded production architecture

src/application.c

@@ -0,0 +1,11 @@
+#include "application.h"
+
+#include <stddef.h>
+
+bool application_enqueue(application_t *application, const app_command_t *command) {
+  return application != NULL && command_queue_push(&application->command_queue, command);
+}
+
+bool application_take_next_command(application_t *application, app_command_t *command) {
+  return application != NULL && command_queue_pop(&application->command_queue, command);
+}