TTS improvements for chunking larger articles and ensuring all content is "read"

[jeffpaul]

Is your enhancement related to a problem? Please describe.

Some integrations of the TTS feature have shown some UX improvements to avoid having to leave a page open for hours and split long articles as well as ensure bylines and footnotes are "read". Let's investigate pulling these sorts of extensions into ClassifAI core.

Designs

No response

Describe alternatives you've considered

No response

Code of Conduct

• I agree to follow this project's Code of Conduct

[jeffpaul]

For those within Fueled, see more here: https://fueled.slack.com/archives/C083AK042DQ/p1777895821461129?thread_ts=1777352170.168349&cid=C083AK042DQ.

[jeffpaul]

Work here may also end up closing #538 and #571.