Refactor AI Agent configuration and workflow handling

- Removed runtime mode handling from AIAgentConfigWorkbench and related components.
- Updated tests to reflect changes in AI Agent policy copy and configuration.
- Changed terminology from "workflow" to "revision" in various components and API responses.
- Simplified agent binding logic in channel editing.
- Cleaned up unused variables and types related to runtime modes.
- Updated localization files for consistency with new terminology.

internal/pkg/dto/response/agent_run_response.go

@@ -9,7 +9,6 @@ type AgentRunResponse struct {
 	AgentRevisionID  int64                            `json:"agentRevisionId"`
 	SourceMessageID  int64                            `json:"sourceMessageId"`
 	WorkflowRunID    int64                            `json:"workflowRunId"`
-	EngineCode       string                           `json:"engineCode"`
 	Status           string                           `json:"status"`
 	PromptTokens     int                              `json:"promptTokens"`
 	CompletionTokens int                              `json:"completionTokens"`