Improve crawler reliability and update project management rules

dashboard.html

@@ -306,8 +306,7 @@
             }
 
             try {
-                const apiHost = window.location.hostname;
-                const response = await fetch(`http://${apiHost}:8001/sync`);
+                const response = await fetch(`/sync`);
                 
                 const reader = response.body.getReader();
                 const decoder = new TextDecoder();
@@ -334,7 +333,10 @@
                                     );
                                     
                                     if (target) {
-                                        target[3] = scrapedItem.recentLog;
+                                        // 기존 데이터 유지 마커 확인
+                                        if (scrapedItem.recentLog !== "기존데이터유지") {
+                                            target[3] = scrapedItem.recentLog;
+                                        }
                                         target[4] = scrapedItem.fileCount;
                                     }
                                 });