feat: EnhancedTicker.info property — sector/industry/country 지원

curl_cffi 커스텀 세션으로 yfinance .info를 호출하면 quoteSummary
일부 엔드포인트가 응답 누락되어 sector/industry/country 필드가 빠짐.
명시적 @property info를 추가하여 vanilla yf.Ticker(symbol).info를
호출 (공유 adaptive rate limiter는 그대로 사용), 모든 필드 반환.

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

yfinance_plus.py

@@ -591,6 +591,20 @@ class EnhancedTicker:
             return getattr(self.yf_ticker, name)
         return self.enhanced_yf._retry_with_backoff(_get_property)
     
+    @property
+    def info(self) -> dict:
+        """Return full company info dict including sector, industry, country, market_cap.
+
+        yfinance_plus curl_cffi sessions can cause partial quoteSummary responses
+        that omit fundamental fields. This property uses a plain yfinance Ticker
+        (no custom session) so all Yahoo Finance endpoints are reached, while still
+        going through the shared adaptive rate limiter.
+        """
+        def _get_info():
+            return yf.Ticker(self.symbol).info
+
+        return self.enhanced_yf._retry_with_backoff(_get_info)
+
     # Additional utility methods
     def get_cache_info(self) -> Dict[str, Any]:
         """Get cache information for this ticker"""