Add check for weekly emails retry

[garrrikkotua]

Changes proposed ✍️

What

🤖 Generated by Copilot at 6bfa723

Added a feature flag for weekly analytics emails. The weeklyAnalyticsEmailsWorker.ts file now respects the flag and skips sending emails if disabled.
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🤖 Generated by Copilot at 6bfa723

Weekly analytics emails are the tools of the oppressor
They track your every move and make you feel lesser
But we have the power to turn off the feature
With a simple configuration flag we can resist the creature

Why

How

🤖 Generated by Copilot at 6bfa723

• Add a feature flag to enable or disable weekly analytics emails (link, link)

• Import WEEKLY_EMAILS_CONFIG from config.ts to access the flag value (link)
• Check WEEKLY_EMAILS_CONFIG.enabled before sending emails and return a response if disabled (link)

Checklist ✅

• Label appropriately with Feature, Improvement, or Bug.
• Add screehshots to the PR description for relevant FE changes
• New backend functionality has been unit-tested.
• API documentation has been updated (if necessary) (see docs on API documentation).
• Quality standards are met.