chore: bootstrap from 2026.8.2.2

Published and verified on both mirrors, indexed (xim-pkgindex#477), and
installed from the index — e2e 89/92/112/179/181 pass against the released
binary. The pin moves only now: bumping it alongside the version would point
every CI job at a release that does not exist yet.

Author: Sunrisepeak

.xlings.json

@@ -1,5 +1,5 @@
 {
   "workspace": {
-    "mcpp": "2026.8.2.1"
+    "mcpp": "2026.8.2.2"
   }
 }