feat(lotto-signals): signal_runner orchestrator + service_proxy GET helpers

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

agent-office/app/service_proxy.py

@@ -338,3 +338,25 @@ async def lookup_pipeline_by_msg(msg_id: int) -> Optional[dict]:
         if resp.status_code == 200:
             return resp.json()
         return None
+
+
+async def lotto_best() -> List[Dict[str, Any]]:
+    """GET /api/lotto/best — best_picks 20개 (numbers + scores 5종)."""
+    from .config import LOTTO_BACKEND_URL
+    resp = await _client.get(f"{LOTTO_BACKEND_URL}/api/lotto/best")
+    resp.raise_for_status()
+    data = resp.json()
+    items = data.get("items") if isinstance(data, dict) else data
+    return items or []
+
+
+async def lotto_strategy_weights() -> Dict[str, float]:
+    """GET /api/lotto/strategy/weights — 전략별 가중치 dict."""
+    from .config import LOTTO_BACKEND_URL
+    resp = await _client.get(f"{LOTTO_BACKEND_URL}/api/lotto/strategy/weights")
+    resp.raise_for_status()
+    data = resp.json()
+    weights = data.get("weights") if isinstance(data, dict) else data
+    if isinstance(weights, list):
+        return {item["strategy"]: float(item["weight"]) for item in weights}
+    return {k: float(v) for k, v in (weights or {}).items()}