chore: update Pi dependencies to 0.81.1

Author: ualtinok

bun.lock

@@ -22,8 +22,8 @@
   },
   "devDependencies": {
     "@biomejs/biome": "2.5.5",
-    "@earendil-works/pi-ai": "0.80.10",
-    "@earendil-works/pi-coding-agent": "0.80.10",
+    "@earendil-works/pi-ai": "0.81.1",
+    "@earendil-works/pi-coding-agent": "0.81.1",
     "@earendil-works/pi-tui": "0.81.1",
     "@opencode-ai/plugin": "1.18.4",
     "@tsconfig/bun": "1.0.10",