feat: AI 서비스 MLX 듀얼 백엔드 및 모델 최적화

- MLX(맥미니 27B) 우선 → Ollama(조립컴 9B) fallback 구조
- pydantic-settings 기반 config 전환
- health check에 MLX 상태 추가
- 텍스트 모델 qwen3:8b → qwen3.5:9b-q8_0 변경

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

ai-service/services/report_service.py

@@ -1,58 +1,38 @@
+import asyncio
 import httpx
 from services.ollama_client import ollama_client
 from services.db_client import get_daily_qc_stats, get_issues_for_date
+from services.utils import load_prompt
 from config import settings
 
 
 REPORT_PROMPT_PATH = "prompts/daily_report.txt"
 
 
-def _load_prompt(path: str) -> str:
-    with open(path, "r", encoding="utf-8") as f:
-        return f.read()
+async def _fetch_one(client: httpx.AsyncClient, url: str, params: dict, headers: dict):
+    try:
+        r = await client.get(url, params=params, headers=headers)
+        if r.status_code == 200:
+            return r.json()
+    except Exception:
+        pass
+    return None
 
 
 async def _fetch_system1_data(date_str: str, token: str) -> dict:
     headers = {"Authorization": f"Bearer {token}"}
-    data = {"attendance": None, "work_reports": None, "patrol": None}
+    params = {"date": date_str}
+    base = settings.SYSTEM1_API_URL
     try:
         async with httpx.AsyncClient(timeout=15.0) as client:
-            # 근태
-            try:
-                r = await client.get(
-                    f"{settings.SYSTEM1_API_URL}/api/attendance/daily-status",
-                    params={"date": date_str},
-                    headers=headers,
-                )
-                if r.status_code == 200:
-                    data["attendance"] = r.json()
-            except Exception:
-                pass
-            # 작업보고
-            try:
-                r = await client.get(
-                    f"{settings.SYSTEM1_API_URL}/api/daily-work-reports/summary",
-                    params={"date": date_str},
-                    headers=headers,
-                )
-                if r.status_code == 200:
-                    data["work_reports"] = r.json()
-            except Exception:
-                pass
-            # 순회점검
-            try:
-                r = await client.get(
-                    f"{settings.SYSTEM1_API_URL}/api/patrol/today-status",
-                    params={"date": date_str},
-                    headers=headers,
-                )
-                if r.status_code == 200:
-                    data["patrol"] = r.json()
-            except Exception:
-                pass
+            attendance, work_reports, patrol = await asyncio.gather(
+                _fetch_one(client, f"{base}/api/attendance/daily-status", params, headers),
+                _fetch_one(client, f"{base}/api/daily-work-reports/summary", params, headers),
+                _fetch_one(client, f"{base}/api/patrol/today-status", params, headers),
+            )
     except Exception:
-        pass
-    return data
+        attendance = work_reports = patrol = None
+    return {"attendance": attendance, "work_reports": work_reports, "patrol": patrol}
 
 
 def _format_attendance(data) -> str:
@@ -102,7 +82,7 @@ async def generate_daily_report(
     qc_stats = get_daily_qc_stats(date_str)
     qc_issues = get_issues_for_date(date_str)
 
-    template = _load_prompt(REPORT_PROMPT_PATH)
+    template = load_prompt(REPORT_PROMPT_PATH)
     prompt = template.format(
         date=date_str,
         attendance_data=_format_attendance(system1_data["attendance"]),