Changing bot commands to be used by endpoints

service/migrations/000010_create_guilds/down.sql

@@ -0,0 +1 @@
+DROP TABLE guilds;

service/migrations/000010_create_guilds/up.sql

@@ -0,0 +1,5 @@
+CREATE TABLE IF NOT EXISTS guilds (
+  id BIGINT PRIMARY KEY NOT NULL,
+  name TEXT NOT NULL,
+  volume INTEGER NOT NULL
+);