refactor(calculator): update tool implementation and fix deprecation warnings

[Vigtu]

refactor(calculator): update tool implementation and fix deprecation warnings

• Replace legacy tool mode implementation using CalculatorToolSchema with simplified tool_mode=True approach.
• Fix ast.Num deprecation warnings by supporting ast.Constant while maintaining backwards compatibility.

[Vigtu]

@carlosrcoelho

[edwinjosechittilappilly]

LGTM

[codspeed-hq[bot]]

CodSpeed Performance Report

Merging #5442 will degrade performances by 32.87%

_{Comparing Vigtu:calculator-overhaul (bf0e59f) with main (3193804)}

Summary

⚡ 1 improvements
❌ 1 regressions
✅ 13 untouched benchmarks

:warning: Please fix the performance issues or acknowledge them on CodSpeed.

Benchmarks breakdown

	Benchmark	main	Vigtu:calculator-overhaul	Change
⚡	test_successful_run_with_input_type_text	4,243.8 ms	249.4 ms	×17
❌	test_successful_run_with_output_type_debug	167.3 ms	249.3 ms	-32.87%

[edwinjosechittilappilly]

@Vigtu can you check and fix why the unit test are failing?

[edwinjosechittilappilly]

tests with the component calculator as tool is failing!

[edwinjosechittilappilly]

@Vigtu We are compiling few guidelines for component refactor PR. Will let you know further details once its ready!

[Vigtu]

edit test cases to use calculator component tool.

Working on this! Thank you

[edwinjosechittilappilly]

@Vigtu can we get these changes in by Today (friday) ? Please let me know if there are any blockers!

[Vigtu]

@Vigtu can we get these changes in by Today (friday) ? Please let me know if there are any blockers!

Done