External HTTP Webhook — CANCELLED

Status: CANCELLED / REMOVED (2026-07-22). The external HTTP webhook signal source (former ADR-003) was removed together with the pm-bot crate during the pm-engine cutover. Its ADR (docs/adr/webhook-signal-source.md) and implementation (crates/pm-bot/src/webhook/) no longer exist.

pm-engine does not accept external HTTP signals. It ingests trading opportunities exclusively via its own discovery pipeline (Gamma + CLOB/WS) and the always-on RTDS feed — see rtds.md.

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