Bug Fixes

• Knowledge Base: Fixed the issue where the QA pair template content was displayed incorrectly when downloaded.
• Agent: Fixed the issue where questions could not be sent during debugging for agents with user input parameters.
• Agent: Fixed the required field error when directly asking a question with the default value kept for an external toggle parameter whose default value is false.
• Agent: Fixed the issue where clicking the "More Parameters" button during debugging/conversation affected the state of external toggle parameters.
• Agent: Fixed the issue where the Skill execution directory could be randomly cleared under concurrent scenarios (#6185).
• Agent: Fixed the issue where variables referenced in the system prompts of Image Understanding and Video Understanding nodes were not resolved (#6180).
• Tools: Fixed the dependency not found error when using pymysql in Python scripts (#6182).