fix(auto_execute): 替換 action 中的 <deployment_name>/{target}/{namespace} placeholder

Nemotron tool calling 生成 <deployment_name> 佔位符未替換
auto_execute 前統一替換所有 {target}/{namespace}/<xxx> 格式

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

apps/api/src/services/decision_manager.py

@@ -666,6 +666,17 @@ class DecisionManager:
         """
         action = token.proposal_data.get("kubectl_command", "")
 
+        # 替換所有 placeholder — {target}/{namespace}/<deployment_name> 等
+        _target = incident.affected_services[0] if incident.affected_services else "unknown"
+        _ns = "awoooi-prod"
+        if incident.signals:
+            _ns = incident.signals[0].labels.get("namespace", "awoooi-prod")
+        import re as _re
+        action = action.replace("{target}", _target).replace("{namespace}", _ns)
+        # <xxx> 格式佔位符 → 用 target 替換
+        action = _re.sub(r"<deployment_name>", _target, action)
+        action = _re.sub(r"<[^>]+>", _target, action)
+
         try:
             # 延遲導入避免循環依賴
             from src.models.approval import ApprovalRequest, ApprovalStatus