Grab upcoming public events from Springfield, Illinois community events calendar, filter out private/members-only events, and clean duplicate postings

Documented steps

1. Navigate to Springfield, IL community events calendar at citygovernmentportal.org/events
2. Set date window to 'Next 90 days' from current date to capture only future events
3. Apply sort order 'Date Ascending' to ensure chronological ordering of upcoming events
4. Uncheck 'Private Events' checkbox to exclude non-public gatherings
5. Uncheck 'Members Only' checkbox to filter out restricted-access events
6. Manually review badge labels on each event and exclude any showing 'VIP', 'Members', or 'Private' badges
7. Click into each event detail page and check the 'Additional Notes' text field where recurrence notes appear (e.g., 'Every Tuesday', 'Monthly on first Monday')
8. For recurring events, extract the base event and recurrence pattern, then generate individual entries for each occurrence within the 90-day window
9. Implement deduplication by comparing event title, date, time, and location; keep first occurrence and flag/remove duplicates
10. Track pagination page numbers and verify event counts match expected results
11. When pagination jumps past reality (requesting page 5+ returns events beyond the 90-day window), stop at the last valid page and log the discrepancy
12. Compile final event list with deduplicated entries sorted by date
13. Export to CSV/JSON with fields: event_name, date, time, location, description, recurrence_note, source_url
14. Publish cleaned event list to target destination (team dashboard, newsletter, or API endpoint)