docs(stalker): document smart endpoint discovery

.changes/stalker-endpoint-discovery.md

@@ -4,8 +4,7 @@ area: stalker
 issues: [850, 686, 755]
 ---
 
-Stalker portals are no longer classified by their URL shape: importing probes
-the real API endpoint (`portal.php` vs `server/load.php`) and checks whether
-the portal actually requires authentication. Canonical Ministra URLs finally
-load content, `…/c` addresses resolve correctly, and misclassified existing
-portals repair themselves on first failure — keeping favorites and history.
+Stalker setup now accepts a host or `/c` address, finds the working API
+endpoint and authentication mode, and rechecks changed connection details in
+Edit. Misclassified portals from earlier versions still repair themselves on
+first compatible failure without losing favorites or history.