### Type of change
* [x] New Feature (non-breaking change which adds functionality)
Add support for Virtual Hosted Style and Path Style URL addressing in
S3_COMPATIBLE storage connector. Default to Virtual Hosted Style for
better compatibility with COS and other S3-compatible services.
- Add addressing_style field to credentials (virtual/path)
- Update frontend form with selection dropdown
- Add validation and tooltips for S3 Compatible endpoint URL
<img width="703" height="875" alt="image"
src="https://github.com/user-attachments/assets/af5ba7ca-f160-47fa-8ba1-32eace8f5fdf"
/>
<img width="1620" height="788" alt="image"
src="https://github.com/user-attachments/assets/6012b5ce-8bcb-478e-a9cb-425f886d5046"
/>
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Co-authored-by: Kevin Hu <kevinhu.sh@gmail.com>
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