fix: Shield tools → Shield Zone API (/shield/shield-zone), client.py에 put 추가

구 API(Pull Zone ShieldDDosProtectionEnabled 필드)는 읽기 전용이라 Shield 설정 변경 불가.
새 Shield Zone API: bunny_shield_list, bunny_shield_status(by shieldZoneId),
bunny_shield_create, bunny_shield_update(PUT), bunny_waf_rules, bunny_waf_logs.
waf_logs 엔드포인트도 /shield/event-logs/{shieldZoneId}로 수정.

bunnycdn_mcp/client.py

@@ -34,6 +34,15 @@ class BunnyClient:
             )
             return self._handle(resp)
 
+    async def put(self, path: str, json: dict | None = None) -> dict | list | str:
+        async with httpx.AsyncClient(timeout=REQUEST_TIMEOUT) as c:
+            resp = await c.put(
+                f"{self._base}{path}",
+                headers=self._headers,
+                json=json,
+            )
+            return self._handle(resp)
+
     async def delete(self, path: str) -> dict | str:
         async with httpx.AsyncClient(timeout=REQUEST_TIMEOUT) as c:
             resp = await c.delete(