- Add WaitGroup synchronization for workers to prevent overlapping scheduler runs
- Increase history fetch multiplier and sleep intervals for better resource usage
- Simplify error handling and logging in worker processing
- Update SQL query to exclude error snapshots from history selection
- Fix worker ID variable reference in spawning loop
- Streamline snapshot update logic and error reporting
- Prevent overwriting snapshots that have valid response codes
- Ensure URL is removed from queue when snapshot update is skipped
- Add last_crawled timestamp tracking for better crawl scheduling
- Remove SkipIdenticalContent flag, simplify content deduplication logic
- Update database schema with last_crawled column and indexes
🤖 Generated with [Claude Code](https://claude.ai/code)
Co-Authored-By: Claude <noreply@anthropic.com>
Add last_crawled timestamp tracking to fix fetchSnapshotsFromHistory()
infinite loop when SkipIdenticalContent=true. Now tracks actual crawl
attempts separately from content changes via database DEFAULT timestamps.
🤖 Generated with [Claude Code](https://claude.ai/code)
Co-Authored-By: Claude <noreply@anthropic.com>
- Add context support to database operations
- Implement versioned snapshots for URL history
- Update database queries to support URL timestamps
- Improve transaction handling with context
- Add utility functions for snapshot history
