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/src/services/telegram_gateway.py

@@ -1290,11 +1290,16 @@ class TelegramGateway:
         duration_seconds: int = 0,
         message: str = "",
         workflow_url: str = "",
+        max_retries: int = 3,
     ) -> dict:
         """
         發送 CI/CD 進度通知 (簡潔版，不走 AI 仲裁)
 
         2026-03-30 ogt: 新增，解決 CI/CD 告警被當成事件處理的問題
+        2026-03-30 P1: 新增重試機制 (指數退避)
+
+        Args:
+            max_retries: 最大重試次數 (預設 3)
 
         Returns:
             dict: Telegram API 回應
@@ -1318,10 +1323,37 @@ class TelegramGateway:
         }
 
         logger.info("telegram_cicd_progress_sending", job=job_name, status=status)
-        result = await self._send_request("sendMessage", payload)
-        logger.info("telegram_cicd_progress_sent", job=job_name, status=status)
 
-        return result
+        # 重試機制 (指數退避)
+        import asyncio
+        last_error = None
+        for attempt in range(max_retries):
+            try:
+                result = await self._send_request("sendMessage", payload)
+                logger.info("telegram_cicd_progress_sent", job=job_name, status=status, attempt=attempt + 1)
+                return result
+            except TelegramGatewayError as e:
+                last_error = e
+                if attempt < max_retries - 1:
+                    delay = 2 ** attempt  # 1, 2, 4 秒
+                    logger.warning(
+                        "telegram_cicd_progress_retry",
+                        job=job_name,
+                        attempt=attempt + 1,
+                        delay=delay,
+                        error=str(e),
+                    )
+                    await asyncio.sleep(delay)
+
+        # 所有重試都失敗
+        logger.error(
+            "telegram_cicd_progress_failed",
+            job=job_name,
+            status=status,
+            max_retries=max_retries,
+            error=str(last_error),
+        )
+        raise last_error
 
     async def send_deploy_success(
         self,

apps/api/src/services/terminal_service.py

@@ -34,6 +34,7 @@ from src.models.terminal import (
     TerminalSession,
     TerminalSessionStatus,
 )
+from src.repositories.k8s_repository import get_k8s_repository
 from src.services.approval_db import get_approval_service
 from src.services.openclaw import get_openclaw
 
@@ -649,6 +650,7 @@ class TerminalService:
         處理狀態查詢
 
         Phase 19.4: 整合真實 K8s API
+        P1 改進: 使用 K8sRepository (積木化)
         @author Claude Code
         @date 2026-03-30 (台北時間)
         """
@@ -656,54 +658,28 @@ class TerminalService:
         await self._publish_tool_call(publisher, topic, "K8s-Status", "executing")
 
         try:
-            # 使用 K8s Diagnostics Service 的 client
-            from src.services.k8s_diagnostics import _get_k8s_client
+            # P1 改進: 使用 K8sRepository 代替直接呼叫 K8s client
+            k8s_repo = get_k8s_repository()
 
-            client = await _get_k8s_client()
-            if not client:
-                raise RuntimeError("K8s client initialization failed")
+            # 檢查 K8s 可用性
+            if not await k8s_repo.is_available():
+                raise RuntimeError("K8s API unavailable")
 
-            v1 = client.CoreV1Api()
-            apps_v1 = client.AppsV1Api()
-
-            # 查詢 awoooi namespace 的 Pods
+            # 取得 Pod 狀態摘要
             namespace = "awoooi"
-            pods = await v1.list_namespaced_pod(namespace=namespace)
+            pod_summary = await k8s_repo.get_pod_status_summary(namespace)
+            deployments = await k8s_repo.list_deployments(namespace)
 
-            # 統計 Pod 狀態
-            pods_total = len(pods.items)
-            pods_running = sum(
-                1 for p in pods.items
-                if p.status.phase == "Running"
-            )
-            pods_ready = sum(
-                1 for p in pods.items
-                if p.status.phase == "Running"
-                and all(
-                    c.ready for c in (p.status.container_statuses or [])
-                )
-            )
+            # 統計
+            pods_total = pod_summary["total"]
+            pods_running = pod_summary["running"]
+            pods_ready = pods_running  # running 已包含 ready 檢查
+            problem_pods = pod_summary["problem_pods"]
 
-            # 找出有問題的 Pods
-            problem_pods = []
-            for pod in pods.items:
-                if pod.status.phase != "Running":
-                    problem_pods.append(f"{pod.metadata.name}: {pod.status.phase}")
-                elif pod.status.container_statuses:
-                    for cs in pod.status.container_statuses:
-                        if not cs.ready:
-                            reason = ""
-                            if cs.state and cs.state.waiting:
-                                reason = cs.state.waiting.reason or ""
-                            problem_pods.append(f"{pod.metadata.name}: {reason or 'NotReady'}")
-                            break
-
-            # 查詢 Deployments
-            deployments = await apps_v1.list_namespaced_deployment(namespace=namespace)
-            deployments_total = len(deployments.items)
+            deployments_total = len(deployments)
             deployments_healthy = sum(
-                1 for d in deployments.items
-                if d.status.ready_replicas == d.spec.replicas
+                1 for d in deployments
+                if d["ready_replicas"] == d["replicas"]
             )
 
             await self._publish_tool_call(
@@ -716,7 +692,7 @@ class TerminalService:
                     "deployments_total": deployments_total,
                 }
             )
-            await asyncio.sleep(0.3)
+            await asyncio.sleep(SSE_DELAY_SECONDS)
 
             # 組合狀態訊息
             status_lines = [
@@ -727,7 +703,7 @@ class TerminalService:
             if problem_pods:
                 status_lines.append(f"\n問題 Pods ({len(problem_pods)}):")
                 for pp in problem_pods[:3]:  # 最多顯示 3 個
-                    status_lines.append(f"  - {pp}")
+                    status_lines.append(f"  - {pp['name']}: {pp['phase']}")
                 if len(problem_pods) > 3:
                     status_lines.append(f"  ... 還有 {len(problem_pods) - 3} 個")
             else:
@@ -742,11 +718,11 @@ class TerminalService:
             logger.error("k8s_status_query_failed", error=str(e))
             await self._publish_tool_call(
                 publisher, topic, "K8s-Status", "failed",
-                result={"error": str(e)[:100]}
+                result={"error": sanitize_error_message(str(e))}
             )
             await self._publish_thought(
                 publisher, topic, "System",
-                f"K8s 狀態查詢失敗: {str(e)[:50]}\n"
+                f"K8s 狀態查詢失敗: {sanitize_error_message(str(e), ERROR_MESSAGE_DISPLAY_LENGTH)}\n"
                 "請確認 K8s 連線配置。"
             )