[DOCX] Comments are not shown in view html output

## Environment

- OfficeCLI: 1.0.144
- Command: `officecli view sample.docx html`

## Summary

Comments contained in a DOCX file are not shown in the generated HTML preview.

## Steps to reproduce

1. Create a DOCX document in Microsoft Word.
2. Add a comment to a range of text.
3. Run:

```bash
officecli view sample.docx html
```

4. Open the generated HTML.

## Expected behavior

The preview should show the comment, a comment marker, or another indication that the selected text has an associated comment.

If comments are intentionally unsupported, this limitation should be documented.

## Actual behavior

Neither the comment text nor a comment marker is displayed. The document appears as if it contains no comments.

Reproduce the issue with `officecli view sample.docx html` using a DOCX containing a Word comment, then trace the `view` command's HTML output path. Done means the generated preview shows the comment text, a marker, or another clear indication of the associated comment; if comments are unsupported, document that limitation.

Written by the indexing model from the issue text.