feat: Implement dynamic model fetching and real-time updates in OpenAIModelComponent

[noodleslove]

Changelog:

• Added get_models method to fetch available models from OpenAI API based on the provided API key and base URL.
• Add unit tests for OpenAIModelComponent functionality

[codspeed-hq]

CodSpeed Performance Report

Merging #7253 will degrade performances by 37.69%

_{Comparing noodleslove:model/openai (4f22cf3) with main (58e0d42)}

Summary

⚡ 1 improvements
❌ 2 regressions
✅ 16 untouched benchmarks

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

Benchmarks breakdown

	Benchmark	BASE	HEAD	Change
❌	test_build_flow_invalid_job_id	8 ms	12.8 ms	-37.69%
⚡	test_cancel_build_failure	257.5 ms	215.9 ms	+19.27%
❌	test_cancel_nonexistent_build	7.7 ms	12 ms	-35.48%