[Packages] 외부 패키지 의존성 추가

Ultraworked with [Sisyphus](https://github.com/code-yeonggu/oh-my-opencode)

Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>

Packages/manifest.json

@@ -1,6 +1,7 @@
 {
   "dependencies": {
     "com.unity.ai.navigation": "2.0.10",
+    "com.unity.behavior": "1.0.15",
     "com.unity.collab-proxy": "2.11.3",
     "com.unity.dedicated-server": "2.0.1",
     "com.unity.ide.rider": "3.0.39",
@@ -13,6 +14,7 @@
     "com.unity.netcode.gameobjects": "2.10.0",
     "com.unity.render-pipelines.universal": "17.3.0",
     "com.unity.services.multiplayer": "2.1.3",
+    "com.unity.shadergraph": "17.3.0",
     "com.unity.test-framework": "1.6.0",
     "com.unity.timeline": "1.8.10",
     "com.unity.ugui": "2.0.0",