### What problem does this PR solve?

feat: Add DynamicInputVariable to RetrievalForm #1739
### Type of change

- [x] New Feature (non-breaking change which adds functionality)

### What problem does this PR solve?

feat: Add a note node to the agent canvas #2767

### Type of change

- [ ] Bug Fix (non-breaking change which fixes an issue)
- [x] New Feature (non-breaking change which adds functionality)
- [ ] Documentation Update
- [ ] Refactoring
- [ ] Performance Improvement
- [ ] Other (please describe):

### What problem does this PR solve?

feat: Add bing and google operator #918

### Type of change


- [x] New Feature (non-breaking change which adds functionality)