Feat: add addressing style config for S3-compatible storage (#11510)

### 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"
/>

---------

Co-authored-by: Kevin Hu <kevinhu.sh@gmail.com>

web/src/pages/user-setting/data-source/contant.tsx

@@ -121,6 +121,21 @@ export const DataSourceFormFields = {
       ],
       required: true,
     },
+    {
+      label: 'Addressing Style',
+      name: 'config.credentials.addressing_style',
+      type: FormFieldType.Select,
+      options: [
+        { label: 'Virtual Hosted Style', value: 'virtual' },
+        { label: 'Path Style', value: 'path' },
+      ],
+      required: false,
+      placeholder: 'Virtual Hosted Style',
+      tooltip: t('setting.S3CompatibleAddressingStyleTip'),
+      shouldRender: (formValues: any) => {
+        return formValues?.config?.bucket_type === 's3_compatible';
+      },
+    },
     {
       label: 'Endpoint URL',
       name: 'config.credentials.endpoint_url',
@@ -444,6 +459,7 @@ export const DataSourceFormDefaultValues = {
         aws_access_key_id: '',
         aws_secret_access_key: '',
         endpoint_url: '',
+        addressing_style: 'virtual',
       },
     },
   },