Allows different types of topic-timer to be automatically configured on
topics. It uses the 'post_created_edited' trigger, which provides all
sorts of filtering options including category/author/etc.
<img width="804" height="270" alt="SCR-20251212-mzrg"
src="https://github.com/user-attachments/assets/90cca3f8-1516-4adf-830a-c2f43125795d"
/>
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Co-authored-by: Régis Hanol <regis@hanol.fr>
