Adds the first ingestion source. Page-1 polling is ETag-conditional
(304s don't count against rate limit); the very first run paginates
back through Link "next" pages up to a 10-page safety cap so the
table starts populated rather than waiting for new activity.
Hits /users/{user}/events/public — works without auth, returns the
right scope for a public timeline. Token (GITHUB_TOKEN) is optional;
when present it raises the rate limit from 60 to 5000/hr.
New plumbing:
moments-core::sources
- EventSource trait (poll() -> count)
- PollerStateStore trait (etag persistence port)
- run_poller driver: tokio interval + jittered exponential backoff
moments-data::github
- GithubSource impl, raw payload preserved as JSONB
- parse_link_next for pagination
- 4 unit tests covering parser + Link parsing
migration 0002_poller_state.sql
- one row per source: source, etag, last_modified, last_fetched
Worker binary spawns one tokio task per source (just github for now)
and aborts on SIGINT. Verified by smoke-curling the upstream endpoint:
ETag and Link headers are present; payload shape matches the parser.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
