Created get chat history endpoint. (#53) #47

Job	Run time
build-and-deploy (docs-manager, ./DocsManager, reto-xmas-2025-goland-ia-backend-docs-manager, doc...	5m 40s
build-and-deploy (rag-manager, ./RAGManager, reto-xmas-2025-goland-ia-backend-rag-manager, rag-ma...	6m 0s
Deployment Success	0s
	11m 40s

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