feat: Human Input Node (#32060)

The frontend and backend implementation for the human input node.

Co-authored-by: twwu <twwu@dify.ai>
Co-authored-by: JzoNg <jzongcode@gmail.com>
Co-authored-by: yyh <92089059+lyzno1@users.noreply.github.com>
Co-authored-by: zhsama <torvalds@linux.do>

web/app/components/workflow/store/workflow/workflow-slice.ts

@@ -9,6 +9,8 @@ import type { FileUploadConfigResponse } from '@/models/common'
 type PreviewRunningData = WorkflowRunningData & {
   resultTabActive?: boolean
   resultText?: string
+  // human input form schema or data cached when node is in 'Paused' status
+  extraContentAndFormData?: Record<string, any>
 }
 
 export type WorkflowSliceShape = {