Route P2P Setup probes through the room owner

src/modules/features/SetupWizard/dialogs/p2pSetupConnectionProbe.ts

@@ -1,4 +1,17 @@
-export type P2PSetupConnectionProbeResult = { ok: true } | { ok: false; reason: string };
+import {
+    ACTIVE_P2P_RELAY_BINDING_CONFLICT,
+    type P2PConnectionProbeAdmission,
+    type P2PConnectionProbeSettings,
+} from "@vrtmrz/livesync-commonlib/p2p";
+
+export type P2PSetupConnectionProbeResult =
+    | { readonly ok: true }
+    | { readonly ok: false; readonly reason: string }
+    | {
+          readonly ok: false;
+          readonly kind: "blocked";
+          readonly reason: typeof ACTIVE_P2P_RELAY_BINDING_CONFLICT;
+      };
 
 export interface P2PSetupConnectionProbe {
     setOnSetup(): void | Promise<void>;
@@ -6,6 +19,25 @@ export interface P2PSetupConnectionProbe {
     open(): Promise<void>;
 }
 
+/** Interpret the stable P2P owner's admission without constructing transport eagerly. */
+export async function coordinateP2PSetupConnectionProbe(
+    admission: P2PConnectionProbeAdmission,
+    trialSettings: P2PConnectionProbeSettings,
+    runOwnedTrial: () => Promise<P2PSetupConnectionProbeResult>
+): Promise<P2PSetupConnectionProbeResult> {
+    const settlement = await admission.run(trialSettings, runOwnedTrial);
+    if (settlement.status === "observed-active") return { ok: true };
+    if (settlement.status === "blocked") {
+        return {
+            ok: false,
+            kind: "blocked",
+            reason: settlement.reason,
+        };
+    }
+    return settlement.result;
+}
+
+/** Open one separately owned signalling connection and report its outcome. */
 export async function probeP2PSetupConnection(
     replicator: P2PSetupConnectionProbe
 ): Promise<P2PSetupConnectionProbeResult> {