[Devathmaj]

Description

Moves Reddit subreddit polling tiers to reduce API load and align with signal quality:

• Tier A → Tier C: 15min → 240min (4h) - High-value coupon subs (AWSCertifications, AzureCertification, Udemy, FreeUdemyCoupons)
• Tier B → Tier D: 60min → 720min (12h) - All other certification subs

This reduces Reddit API/RSS requests by ~90% while maintaining coverage of high-signal sources.

Type of Change

• Configuration / settings change
• Documentation update

Affected Components

• Scheduler / Dispatcher
• Reddit Integration

Testing

• Ran pytest — all tests pass (418 passed, 15 skipped)
• Ran
  uff check . && ruff format . — no lint errors
• Updated tier assertions in ests/test_bootstrap.py

Migration

• This PR includes an Alembic migration (not applicable)

Additional Notes

Files Modified

• �oucherbot/database/bootstrap.py — Tier logic: _reddit_tier() now returns C/D instead of A/B, cadence minutes updated
• sources/Subreddit.txt — Documentation updated with new tier labels
• sources/source.md — Updated reference to Tier C/D
• ests/test_bootstrap.py — Updated test assertions for new tier assignments

Cadence Changes

Subreddit	Old Tier	New Tier	Old Interval	New Interval
AWSCertifications	A	C	15 min	240 min
AzureCertification	A	C	15 min	240 min
Udemy	A	C	15 min	240 min
FreeUdemyCoupons	A	C	15 min	240 min
O365Certification	B	D	60 min	720 min
CompTIA	B	D	60 min	720 min
(all others)	B	D	60 min	720 min

Summary by CodeRabbit

• Changes
  • Reddit sources are now checked less frequently: selected subreddits every 4 hours and other subreddits every 12 hours, instead of every 15 minutes and 1 hour.
• Documentation
  • Source information now describes using the Kodexis API key as a fallback when OAuth is disabled.

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⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Advanced

Run ID: 8181f623-3259-4054-a12b-da3efd258694

📥 Commits

Reviewing files that changed from the base of the PR and between 8b5bc82 and b816006.

📒 Files selected for processing (4)

• Sources/Subreddit.txt
• Sources/source.md
• tests/test_bootstrap.py
• voucherbot/database/bootstrap.py

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