refactor(api): Phase B P1 可靠性強化 (2 項)

1. send_cicd_progress 重試機制 (指數退避 1,2,4 秒)
2. K8s Repository 封裝 (IK8sRepository + K8sRepository)

首席架構師審查 P1 改進 - 模組化合規

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

apps/api/tests/test_terminal_service.py

@@ -14,16 +14,17 @@ Omni-Terminal SSE 架構測試
 @date 2026-03-28 (台北時間)
 """
 
-import pytest
 from unittest.mock import AsyncMock, MagicMock, patch
 from uuid import uuid4
 
+import pytest
+
+from src.models.approval import ApprovalRequest, ApprovalStatus, RiskLevel
 from src.models.terminal import (
     SpatialContext,
     TerminalIntentRequest,
     TerminalSessionStatus,
 )
-from src.models.approval import ApprovalRequest, ApprovalStatus, RiskLevel
 from src.services.terminal_service import (
     IntentType,
     TerminalService,
@@ -345,44 +346,30 @@ class TestHandleApprovalAction:
 
 
 class TestHandleStatusQuery:
-    """_handle_status_query Phase 19.4 測試"""
+    """_handle_status_query Phase 19.4 測試 (P1: 使用 K8sRepository)"""
 
     @pytest.mark.asyncio
     async def test_status_query_success(self, mock_publisher):
-        """測試 K8s 狀態查詢成功"""
+        """測試 K8s 狀態查詢成功 (P1: 使用 K8sRepository)"""
         service = TerminalService()
 
-        # 模擬 K8s client
-        mock_pod = MagicMock()
-        mock_pod.metadata.name = "awoooi-api-xxx"
-        mock_pod.status.phase = "Running"
-        mock_pod.status.container_statuses = [MagicMock(ready=True)]
-
-        mock_pods_list = MagicMock()
-        mock_pods_list.items = [mock_pod]
-
-        mock_deployment = MagicMock()
-        mock_deployment.status.ready_replicas = 1
-        mock_deployment.spec.replicas = 1
-
-        mock_deployments_list = MagicMock()
-        mock_deployments_list.items = [mock_deployment]
-
-        mock_v1 = MagicMock()
-        mock_v1.list_namespaced_pod = AsyncMock(return_value=mock_pods_list)
-
-        mock_apps_v1 = MagicMock()
-        mock_apps_v1.list_namespaced_deployment = AsyncMock(
-            return_value=mock_deployments_list
-        )
-
-        mock_client = MagicMock()
-        mock_client.CoreV1Api.return_value = mock_v1
-        mock_client.AppsV1Api.return_value = mock_apps_v1
+        # Mock K8sRepository
+        mock_k8s_repo = MagicMock()
+        mock_k8s_repo.is_available = AsyncMock(return_value=True)
+        mock_k8s_repo.get_pod_status_summary = AsyncMock(return_value={
+            "total": 1,
+            "running": 1,
+            "pending": 0,
+            "failed": 0,
+            "problem_pods": [],
+        })
+        mock_k8s_repo.list_deployments = AsyncMock(return_value=[
+            {"name": "awoooi-api", "ready_replicas": 1, "replicas": 1, "available": 1}
+        ])
 
         with patch(
-            "src.services.k8s_diagnostics._get_k8s_client",
-            new=AsyncMock(return_value=mock_client),
+            "src.services.terminal_service.get_k8s_repository",
+            return_value=mock_k8s_repo,
         ):
             await service._handle_status_query(
                 mock_publisher,
@@ -396,41 +383,26 @@ class TestHandleStatusQuery:
 
     @pytest.mark.asyncio
     async def test_status_query_with_problem_pods(self, mock_publisher):
-        """測試有問題 Pods 時的狀態查詢"""
+        """測試有問題 Pods 時的狀態查詢 (P1: 使用 K8sRepository)"""
         service = TerminalService()
 
-        # 一個正常 Pod，一個有問題的 Pod
-        mock_pod_ok = MagicMock()
-        mock_pod_ok.metadata.name = "awoooi-api-ok"
-        mock_pod_ok.status.phase = "Running"
-        mock_pod_ok.status.container_statuses = [MagicMock(ready=True)]
-
-        mock_pod_bad = MagicMock()
-        mock_pod_bad.metadata.name = "awoooi-worker-bad"
-        mock_pod_bad.status.phase = "Pending"
-        mock_pod_bad.status.container_statuses = []
-
-        mock_pods_list = MagicMock()
-        mock_pods_list.items = [mock_pod_ok, mock_pod_bad]
-
-        mock_deployments_list = MagicMock()
-        mock_deployments_list.items = []
-
-        mock_v1 = MagicMock()
-        mock_v1.list_namespaced_pod = AsyncMock(return_value=mock_pods_list)
-
-        mock_apps_v1 = MagicMock()
-        mock_apps_v1.list_namespaced_deployment = AsyncMock(
-            return_value=mock_deployments_list
-        )
-
-        mock_client = MagicMock()
-        mock_client.CoreV1Api.return_value = mock_v1
-        mock_client.AppsV1Api.return_value = mock_apps_v1
+        # Mock K8sRepository
+        mock_k8s_repo = MagicMock()
+        mock_k8s_repo.is_available = AsyncMock(return_value=True)
+        mock_k8s_repo.get_pod_status_summary = AsyncMock(return_value={
+            "total": 2,
+            "running": 1,
+            "pending": 1,
+            "failed": 0,
+            "problem_pods": [
+                {"name": "awoooi-worker-bad", "phase": "Pending", "ready": False, "restarts": 0}
+            ],
+        })
+        mock_k8s_repo.list_deployments = AsyncMock(return_value=[])
 
         with patch(
-            "src.services.k8s_diagnostics._get_k8s_client",
-            new=AsyncMock(return_value=mock_client),
+            "src.services.terminal_service.get_k8s_repository",
+            return_value=mock_k8s_repo,
         ):
             await service._handle_status_query(
                 mock_publisher,
@@ -454,12 +426,16 @@ class TestHandleStatusQuery:
 
     @pytest.mark.asyncio
     async def test_status_query_k8s_unavailable(self, mock_publisher):
-        """測試 K8s 連線失敗時的處理"""
+        """測試 K8s 連線失敗時的處理 (P1: 使用 K8sRepository)"""
         service = TerminalService()
 
+        # Mock K8sRepository - 不可用
+        mock_k8s_repo = MagicMock()
+        mock_k8s_repo.is_available = AsyncMock(return_value=False)
+
         with patch(
-            "src.services.k8s_diagnostics._get_k8s_client",
-            new=AsyncMock(return_value=None),
+            "src.services.terminal_service.get_k8s_repository",
+            return_value=mock_k8s_repo,
         ):
             # 不應拋出例外
             await service._handle_status_query(