CHORE(deps): upgrade to Claude Sonnet 4.5

- Update to claude-sonnet-4-5 model
- Use latest Claude model

deploy/k8s/overlays/prod/kustomization.yaml

@@ -15,5 +15,5 @@ commonLabels:
 # 이미지 태그 설정 (ArgoCD Image Updater가 자동으로 업데이트)
 images:
   - name: gitea0213.kro.kr/bluemayne/mas
-    newTag: main-sha-8c6d1b75226b381cc316b8a3df005ebab1bfde29
+    newTag: main-sha-7f9c8021d3d636b491be8537b7d5a7cd40d8c5d4
 

services/backend/agents.py

@@ -20,7 +20,7 @@ class AgentState(TypedDict):
 
 # ===== 1. Claude Code - Orchestrator =====
 claude_orchestrator = ChatAnthropic(
-    model="claude-3-5-sonnet-latest",  # Always use latest version
+    model="claude-sonnet-4-5",  # Latest Claude Sonnet 4.5 (Sep 2025)
     api_key=os.getenv("ANTHROPIC_API_KEY"),
     temperature=0
 )