docs(route): isolate Browser SFU ICE servers (#234)

docs/README.md

@@ -25,7 +25,7 @@
 - [ADR-0001](./adr/0001-p2p-first-media-topology.md): historical P2P-first baseline; later access and automatic-routing decisions supersede its stale current-state details.
 - [ADR-0002](./adr/0002-memory-resident-protected-rooms.md): four-digit leased in-memory rooms, local Host defaults, scoped Viewer grants, and orthogonal code entry.
 - [ADR-0004](./adr/0004-peer-assisted-media-experiment.md): historical standard-WebRTC peer-assisted experiment and reusable evidence.
-- [ADR-0005](./adr/0005-automatic-hybrid-media-routing.md): accepted and deployed P2P-first single-reconcile route model; remaining real-network validation is tracked in verification status.
+- [ADR-0005](./adr/0005-automatic-hybrid-media-routing.md): accepted P2P-first single-reconcile route model; its core is deployed, while the accepted Browser SFU ICE-server-isolation amendment remains pending and real-network validation is tracked in verification status.
 - [ADR-0006](./adr/0006-fixed-high-native-sender-canary.md): proposed fixed-`HIGH` native canary, current no-go result, and staged revalidation boundary.
 - [ADR-0007](./adr/0007-demand-driven-dual-representation-quality.md): accepted path-isolated `HIGH + at most one LOW` policy, optional idle-layer stop, evidence contract, and SVC boundary.
 - [ADR-0008](./adr/0008-window-scoped-audio-capture.md): browser window-audio hint and the Windows WASAPI process-loopback boundary.