refactor(agent): Pi 会话运行时 - 接入原生 Agent 与 Skills 工具链

backend/agent-runtime/pi/package.json

@@ -0,0 +1,13 @@
+{
+  "name": "@infinite-canvas/pi-agent-runtime",
+  "private": true,
+  "type": "module",
+  "engines": {
+    "node": ">=22.19.0"
+  },
+  "dependencies": {
+    "@earendil-works/pi-ai": "0.87.1",
+    "@earendil-works/pi-coding-agent": "0.87.1",
+    "typebox": "1.3.27"
+  }
+}