fix: Simplify exception handling and refactor error messaging

[ogabrielluiz]

This pull request simplifies the exception handling in the LCAgentComponent by removing redundant exception parameters and ensuring that nested exceptions are properly handled during message schema initialization. The ExceptionWithMessageError class has been refactored to streamline its usage, enhancing clarity and maintainability of the error handling logic.

[codspeed-hq]

CodSpeed Performance Report

Merging #4496 will degrade performances by 23.91%

_{Comparing fix-agent-lock (1a783af) with main (5a6c556)}

Summary

⚡ 1 improvements
❌ 1 regressions
✅ 13 untouched benchmarks

⚠️ Please fix the performance issues or acknowledge them on CodSpeed.

Benchmarks breakdown

	Benchmark	main	fix-agent-lock	Change
⚡	test_successful_run_with_input_type_any	504.4 ms	343.4 ms	+46.88%
❌	test_successful_run_with_input_type_text	404.2 ms	531.2 ms	-23.91%