Add logger adapter with bugbot_rule context

[suhaibmujahid]

This will allow filtering logs based on the rule name.

Checklist

• Type annotations added to new functions
• Docs added to functions touched in main classes
• Dry-run produced the expected results
• The to-be-announced tag added if this is worth announcing

[Copilot]

Pull Request Overview

This PR refactors the logger initialization to support adding extra context (specifically the rule name) to log messages. The logger is now created as a LoggerAdapter that can carry contextual information about which bugbot rule is executing.

Key changes:

• Refactored logger initialization into a create_logger() function that returns a LoggerAdapter
• Introduced a logger_extra dictionary to store contextual information (bugbot rule name)
• Modified the BzCleaner.run() method to set the rule name in the logger extra context

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 2 comments.

File	Description
bugbot/init.py	Refactored logger initialization into create_logger() function and introduced logger_extra dictionary for contextual logging
bugbot/bzcleaner.py	Added import for bugbot module and set bugbot_rule in logger context at rule execution start

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