Per-requester OAuth for HTTP MCP servers: in shared channels each trusted sender connects their own account. New config: mcp.servers.<name>.oauth.identity ("shared" default, byte-identical behavior) and gateway.publicOrigin (HTTPS except loopback) for the new GET /oauth/mcp/callback served on the Gateway HTTP server. Requester tokens are isolated per (channel, account, sender) in mcp_oauth_stores rows (no schema bump); callbacks correlate through a durable state-keyed one-time index with a 10-minute TTL; per-requester servers are fail-closed out of static/scheduled runtimes; unauthenticated senders get a sign-in link with a portable URL button; MCP config mutations clear requester credentials at the canonical owner. mcp status --json keeps the legacy authStatus fields additively. Proven by a two-user self-hosted-Executor E2E through the real gateway callback. Part of #122034.
Co-authored-by: Ayaan Zaidi <hi@obviy.us>
Inbound image, audio, and video attachments could vanish with no recorded outcome and no model-visible explanation: attachments dropped by first-only selection, disabled or unconfigured capabilities, stage failures, URL-only images, and ACP-undelivered images all left the model unaware the media existed. Fixes#122044; completes the outcome custody started for documents in #122025.
Media capabilities now record one closed disposition per pre-truncation candidate at the decision site that owns the reason, with a memoized lazy native-vision probe (fires only when a marker could render; failure yields unknown and never alters outcomes; explicit image models never pay a catalog lookup). One late reader renders bounded, actionable markers from recorded facts only: native-vision and ACP-delivered images suppress per verified index, recorded failures always render, and document plus media markers share one five-marker budget with a reason-neutral overflow summary. The shipped SDK decision type stays additive (optional dispositions map).
Proof: 906 + 103 focused tests including nine adversarial-review regressions, ClawSweeper local review clean (round 9, zero findings, security cleared), live Telegram image drive showing ref preservation with no false marker.
Co-authored-by: Ayaan Zaidi <hi@obviy.us>
Peter Steinberger