feat: Implement Chat Memory Manager node (#8127)

Signed-off-by: Oleg Ivaniv <me@olegivaniv.com>
Co-authored-by: Michael Kret <michael.k@radency.com>

packages/@n8n/nodes-langchain/nodes/memory/MemoryMotorhead/MemoryMotorhead.node.ts

@@ -87,6 +87,8 @@ export class MemoryMotorhead implements INodeType {
 			apiKey: credentials.apiKey as string,
 			memoryKey: 'chat_history',
 			returnMessages: true,
+			inputKey: 'input',
+			outputKey: 'output',
 		});
 
 		await memory.init();