Cog Load Resilience for Site-Dependent Extensions

[rippyboii]

Summary

Under certain startup conditions, some extensions/cogs fail to load when the site/API is temporarily unavailable (e.g., connection drop, timeout, failed response).

Example (Filtering cog):

• bot/exts/filtering/filtering.py
• async def cog_load(self)
• site/API call during load (self.bot.api_client.get(...))
• webhook setup during load (_fetch_or_generate_filtering_webhook())

If these fail and are not handled, the cog may not load.

Affected Cogs

• filters (highest priority; moderation-critical)
• superstarify
• reminders
• python_news

Tasks

• Add retry + backoff helper/pattern for temporary site/API failures
• Handle and log failures clearly in cog_load()
• Add moderator/admin alert for filters load failure
• Re-raise after final failure so monitoring still sees it
• Add tests for retry/failure behavior (unit tests where feasible)