王性驊 294bd74a43 refactor(task-1): add domain layer with entities and interfaces ... - Add entity types: Message, Tool, ToolCall, Chunk, Account - Add repository interfaces: AccountPool, Provider - Add usecase interfaces: ChatUsecase, AgentRunner - Add model constants and error definitions		2026-04-03 17:22:48 +08:00
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chat.go	refactor(task-1): add domain layer with entities and interfaces	2026-04-03 17:22:48 +08:00