feat: Flickrreview bot for Flickypedia uploads

[DaxServer]

Adds a new bot (flickrreview) that tags Flickypedia-uploaded files missing the {{Flickrreview}} template.

How it works:

• Generator: incategory:"Uploads using Flickypedia" -hastemplate:Flickrreview
• skip_page() skips files where FlickreviewR is already present or the bot has previously edited the page (both cached in Redis)
• treat_page() inserts {{Flickrreview}} immediately before {{Uploaded with Flickypedia}}, collapsing any preceding blank line

BaseBot additions:

• has_template(page, name) — checks for a template via prop=templates
• has_user_edited(page) — checks edit history via prop=revisions&rvuser=...

[gemini-code-assist]

Code Review

This pull request introduces the FlickreviewrBot, a new bot designed to add the {{Flickrreview}} template to files uploaded via Flickypedia on Wikimedia Commons. The changes include updates to the documentation, dependency management, and the addition of helper methods in the base bot class for checking templates and previous edits. Feedback focuses on removing a hardcoded default username in the base class, cleaning up the edit summary for production, and utilizing existing helper methods for API calls to ensure consistency.