[Data Source] Build Durham City Council OnBase agenda and legislation scraper

[ThatXliner]

Summary

Add Durham, NC City Council meetings, work sessions, agendas, items, attachments, minutes, ordinances/resolutions, and action/vote text.

Source assessment

Durham does not appear to use the Legistar API Billion already supports. Its official record is Hyland OnBase Agenda Online, so this needs a source adapter rather than a JURISDICTIONS entry.

• Official OnBase: https://cityordinances.durhamnc.gov/OnBaseAgendaOnline/
• Council page: https://www.durhamnc.gov/1323/City-Council

Scope

• Identify the public JSON/XHR requests used by OnBase; avoid brittle rendered-page scraping where possible.
• Enumerate Council Meetings and Work Sessions by date.
• Capture body, time/location, agenda status, item number/title, attachments, minutes, action/result, and canonical URL.
• Parse official PDF/HTML attachments only as needed; retain URL/checksum.
• Map to the existing local-government meeting/matter/vote contract via an adapter.
• Add polite concurrency, cache, retries, idempotency, and source-structure versioning.
• Test one regular meeting, one work session, amended agendas, and missing minutes.
• Contact the City Clerk only if no stable public request path exists.

Acceptance criteria

• Backfill 12 months; normalized items include official attachments and minutes/actions when present.
• Re-runs do not duplicate data; amendments update safely.
• Every record cites Durham; failures are isolated and actionable.

Outreach Tracker

• Track: Data Source
• Stage: Researching
• Playbook: A — no outreach unless endpoint stability requires clarification
• Time sensitivity: Medium
• Next action: capture the network contract for one 2026 regular meeting.