Router conditional port logic

[emir-karabeg]

Summary

This PR transforms the Router block from an LLM-based routing mechanism into a conditional logic block, mirroring the functionality of the Conditional block. It introduces if/else if/else conditions for explicit path selection, enhancing control and predictability. Existing router blocks will default to the first output port, ensuring backward compatibility.

Fixes #

Type of Change

• [ ] Bug fix
• [x] New feature
• [ ] Breaking change
• [ ] Documentation
• [ ] Other: ___________

Testing

The changes were verified by:

• Running unit tests for router handler and edge construction.
• Manual testing of the new router block in the UI, ensuring conditions can be set, connections made, and routes are correctly evaluated.
• Ensuring existing router blocks (pre-change) default to the first output port.

Checklist

• [x] Code follows project style guidelines
• [x] Self-reviewed my changes
• [x] Tests added/updated and passing
• [x] No new warnings introduced
• [x] I confirm that I have read and agree to the terms outlined in the Contributor License Agreement (CLA)

Screenshots/Videos

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1 Skipped Deployment

Project	Deployment	Review	Updated (UTC)
docs	Skipped		Dec 20, 2025 10:09pm