- Compares old (api-sample.json) and new (api-sample-new.json) shapes
- Specifies Authorization: ApiKey header instead of ?key= query param
- Specifies following _metadata.links.next for pagination
- Specifies entry.id (string) as PRIMARY KEY with INSERT ... ON CONFLICT DO NOTHING
- Adds backfillUserLogs (replaces firstRun) and syncUserLogs (renamed from getLog)
- Adds shared fetchAndStoreLogPage helper
- Adds golden-file unit test (no live API)
