refactor(gateway): split server runtime

src/gateway/server-wizard-sessions.ts

@@ -0,0 +1,21 @@
+import type { WizardSession } from "../wizard/session.js";
+
+export function createWizardSessionTracker() {
+  const wizardSessions = new Map<string, WizardSession>();
+
+  const findRunningWizard = (): string | null => {
+    for (const [id, session] of wizardSessions) {
+      if (session.getStatus() === "running") return id;
+    }
+    return null;
+  };
+
+  const purgeWizardSession = (id: string) => {
+    const session = wizardSessions.get(id);
+    if (!session) return;
+    if (session.getStatus() === "running") return;
+    wizardSessions.delete(id);
+  };
+
+  return { wizardSessions, findRunningWizard, purgeWizardSession };
+}