feat(chat): NemoClaw→Claude Haiku API + 告警只由 OpenClaw 分析

老闆指示 (2026-04-03):
1. NemoClaw 改接 Claude API (claude-haiku-4-5)，快速中文對話
2. 群組告警分析只觸發 OpenClaw，NemoClaw 不分析告警
3. OpenClaw/NemoClaw 雙向自然語言對話維持

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

apps/api/src/services/chat_manager.py

@@ -144,23 +144,39 @@ class ChatManager:
 
     async def _call_nemotron(self, system_prompt: str, user_message: str) -> str | None:
         """
-        呼叫 NemoClaw 對話 — NVIDIA NIM nemotron-mini-4b
+        呼叫 NemoClaw 對話 — Claude API (claude-haiku-4-5)
 
-        2026-04-03 ogt: Ollama 188 主機負載高常超時，暫時維持 NIM
-        老闆可接受慢速，timeout=120s
+        2026-04-03 ogt: 老闆指示改接 Claude API，快速且中文能力強
+        用 haiku 降低費用
         """
-        from src.services.nvidia_provider import get_nvidia_provider
-        nvidia = get_nvidia_provider()
-        try:
-            full_prompt = f"{system_prompt}\n\n用戶訊息: {user_message}"
-            response, success, _, _ = await nvidia.chat(
-                prompt=full_prompt,
-                model="nvidia/nemotron-mini-4b-instruct",
-                max_tokens=300,
-            )
-            if success and response and "not configured" not in response and "Circuit Breaker" not in response:
-                return response.strip()
+        import httpx
+        from src.core.config import get_settings
+        settings = get_settings()
+
+        api_key = getattr(settings, 'CLAUDE_API_KEY', None)
+        if not api_key:
+            logger.warning("nemotron_chat_failed", error="CLAUDE_API_KEY not configured")
             return None
+
+        try:
+            async with httpx.AsyncClient(timeout=30.0) as client:
+                resp = await client.post(
+                    "https://api.anthropic.com/v1/messages",
+                    headers={
+                        "x-api-key": api_key,
+                        "anthropic-version": "2023-06-01",
+                        "content-type": "application/json",
+                    },
+                    json={
+                        "model": "claude-haiku-4-5-20251001",
+                        "max_tokens": 300,
+                        "system": system_prompt,
+                        "messages": [{"role": "user", "content": user_message}],
+                    },
+                )
+                resp.raise_for_status()
+                data = resp.json()
+                return data["content"][0]["text"].strip()
         except Exception as e:
             logger.warning("nemotron_chat_failed", error=str(e))
             return None

apps/api/src/services/telegram_gateway.py

@@ -2684,36 +2684,19 @@ class TelegramGateway:
         try:
             chat_mgr = ChatManager()
 
+            # 2026-04-03 ogt: 老闆指示 — 告警分析只由 OpenClaw 負責，NemoClaw 不分析告警
             openclaw_prompt = (
                 f"你是 OpenClaw，AWOOOI SRE 戰情室首席 AI，精通 K8s、Prometheus、告警分析。\n"
-                f"以下是一則基礎設施告警，請進行 RCA 根因分析並給出 3 點具體建議行動：\n\n"
-                f"{alert_summary}"
-            )
-            nemo_prompt = (
-                f"你是 NemoClaw，AWOOOI SRE 戰情室 AI 參謀，由 NVIDIA Nemotron 驅動。\n"
-                f"以下是一則基礎設施告警，請從風險評估角度分析，指出潛在的連鎖失效點：\n\n"
+                f"以下是一則基礎設施告警，請進行 RCA 根因分析並給出 3 點具體建議行動。\n"
+                f"繁體中文回應，不超過 300 字：\n\n"
                 f"{alert_summary}"
             )
 
-            # 2026-04-03 ogt: 並行執行，兩個 AI 同時分析，不互相影響（更客觀）
-            openclaw_task = asyncio.create_task(
-                chat_mgr._call_openclaw(
-                    system_prompt="你是 OpenClaw，AWOOOI SRE 戰情室首席 AI。",
-                    user_message=openclaw_prompt,
-                )
-            )
-            nemo_task = asyncio.create_task(
-                chat_mgr._call_nemotron(
-                    system_prompt="你是 NemoClaw，AWOOOI SRE 戰情室 AI 參謀。",
-                    user_message=nemo_prompt,
-                )
+            openclaw_analysis = await chat_mgr._call_openclaw(
+                system_prompt="你是 OpenClaw，AWOOOI SRE 戰情室首席 AI。稱呼用戶為「老闆」。",
+                user_message=openclaw_prompt,
             )
 
-            openclaw_analysis, nemo_analysis = await asyncio.gather(
-                openclaw_task, nemo_task, return_exceptions=True
-            )
-
-            # OpenClaw 發到群組
             if openclaw_analysis and not isinstance(openclaw_analysis, Exception):
                 await self.send_as_openclaw(
                     text=f"🦞 <b>OpenClaw 分析</b>\n\n{openclaw_analysis}",
@@ -2723,16 +2706,6 @@ class TelegramGateway:
             else:
                 logger.warning("trigger_group_ai_discussion_openclaw_empty")
 
-            # NemoClaw 發到群組（同樣 reply 告警訊息，並排出現）
-            if nemo_analysis and not isinstance(nemo_analysis, Exception):
-                await self.send_as_nemotron(
-                    text=f"🤖 <b>NemoClaw 分析</b>\n\n{nemo_analysis}",
-                    reply_to_message_id=alert_message_id,
-                )
-                logger.info("group_ai_discussion_nemo_sent")
-            else:
-                logger.warning("trigger_group_ai_discussion_nemo_empty")
-
             logger.info("group_ai_discussion_completed", alert_message_id=alert_message_id)
 
         except Exception as e: