[WIP] Find all opening PRs modifying vllm-omni files excluding diffusion

[Copilot]

• Understand the problem: Find all open PRs that modified files inside vllm_omni/ but not vllm_omni/diffusion/
• List all open PRs in the repository (100 PRs found)
• Check each PR to see which files were modified
• Filter PRs that modified files in vllm_omni/ but NOT in vllm_omni/diffusion/
• Generate a comprehensive report with the results
• Save the results to a file in the repository

Original prompt

find all openning PRs that have modified the files inside vllm-omni/vllm_omni except vllm-omni/vllm_omni/diffusion

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