### What problem does this PR solve?
Feat: If a query variable in a data manipulation operator is deleted, a
warning message should be displayed to the user. #10427#11255
### Type of change
- [x] New Feature (non-breaking change which adds functionality)
### What problem does this PR solve?
Feat: Adjust the style of mcp and checkbox. #10427
### Type of change
- [x] New Feature (non-breaking change which adds functionality)
### What problem does this PR solve?
Feat: Globally defined conversation variables can be selected in the
operator's query variables. #10427
### Type of change
- [x] New Feature (non-breaking change which adds functionality)
### What problem does this PR solve?
Feat: Rename the files in the jsonjoy-builder directory to lowercase.
#10866
### Type of change
- [x] New Feature (non-breaking change which adds functionality)
### What problem does this PR solve?
Feat: Configure structured data output for agent forms #10866
### Type of change
- [x] New Feature (non-breaking change which adds functionality)
