refactor(webui): select Mail-owned profiles for campaigns

webui/src/features/campaigns/utils/mailProfileReference.ts

@@ -0,0 +1,13 @@
+export function campaignMailProfileReferenceOnly(value: Record<string, unknown>): Record<string, unknown> {
+  const server = isRecord(value.server) ? value.server : {};
+  const rawProfileId = server.mail_profile_id;
+  const profileId = typeof rawProfileId === "string" ? rawProfileId.trim() : "";
+  return {
+    ...value,
+    server: profileId ? { mail_profile_id: profileId } : {}
+  };
+}
+
+function isRecord(value: unknown): value is Record<string, unknown> {
+  return Boolean(value) && typeof value === "object" && !Array.isArray(value);
+}