Push collector. POST /ingest with header "Authorization: Bearer <INGEST_TOKEN>" and a JSON body:
{ "source_key": "gather", "source_name": "Gather transcripts", "title": "...", "url": "https://...", "text": "<full plain text>", "captured_at": "2026-10-16T12:00:00Z" }
Required: source_key, text. Reply: {"status":"ingested"|"duplicate","itemId":"..."}. Same text twice = one item.