fix(core): Make senderId required for all command messages (#7252)

all commands sent between main instance and workers need to contain a
server id to prevent senders from reacting to their own messages,
causing loops

this PR makes sure all sent messages contain a sender id by default as
part of constructing a sending redis client.

---------

Co-authored-by: कारतोफ्फेलस्क्रिप्ट™ <aditya@netroy.in>

packages/cli/src/config/schema.ts

@@ -1138,6 +1138,11 @@ export const schema = {
 			default: 'n8n',
 			env: 'N8N_REDIS_KEY_PREFIX',
 		},
+		queueModeId: {
+			doc: 'Unique ID for this n8n instance, is usually set automatically by n8n during startup',
+			format: String,
+			default: '',
+		},
 	},
 
 	cache: {