feat: Add operators for comparing numbers in conditional router

[Empreiteiro]

I have added operators for comparing numbers.

These operators can be useful in several cases, including routing a request when the number of tokens exceeds the LLM limit.

[codspeed-hq[bot]]

CodSpeed Performance Report

Merging #7771 will improve performances by 22.36%

_{Comparing Empreiteiro:Update-Conditional-Router (aa8a098) with main (f73ba66)}

Summary

⚡ 1 improvements
✅ 18 untouched benchmarks

Benchmarks breakdown

	Benchmark	BASE	HEAD	Change
⚡	test_cancel_nonexistent_build	10 ms	8.2 ms	+22.36%