Support for Adding Comments to Specific Text Ranges in Google Docs via API

[KallivdH]

Is your feature request related to a problem? Please describe.
I'm frustrated that when adding comments to Google Docs via the google_workspace_mcp API, the comments can only be attached to the nearest paragraph, not to a specific text selection or range. This limits the precision of feedback and makes it harder to reference exact text within the document.

Describe the solution you'd like
I would like the ability to add comments to a specific text selection or range within a Google Doc, similar to how users can select text and add an inline comment in the Google Docs web interface. If this is not possible, clear documentation that the API only supports linking comments to the nearest paragraph would be sufficient.

Describe alternatives you've considered
Including the relevant text fragment in the comment body, but this is less user-friendly and can be confusing in longer documents.

Additional context
This feature would be especially useful for automated tools that provide grammar and style feedback, code review bots, or any workflow that requires referencing exact text fragments. If the Google Docs API only supports paragraph-level comments, please document this limitation clearly.

[taylorwilsdon]

It's more convoluted than you'd think to accomplish but we got into the weeds pretty successfully in https://github.com/taylorwilsdon/google_workspace_mcp/blob/main/gdocs/docs_structure.py and that should provide a baseline for how to do it with comments specifically. PR welcome, otherwise I'll take a run at this when I have some free time.