Fixed download sizes and directory highlighting

Co-Authored-By: Claude Opus 5.5 <[email protected]>

Client/Core.py

@@ -539,6 +539,17 @@ def HumanSize(NumBytes: Optional[int]) -> str:
     return f"{Size:.1f} TB"
 
 
+def HumanDuration(Seconds: float) -> str:
+    """Roughly, for "about ... left": 8 s, 3 min, 1 h, 1 h 20 min."""
+    Seconds = max(1, round(Seconds))
+    if Seconds < 60:
+        return f"{Seconds} s"
+    Hours, Minutes = divmod(round(Seconds / 60), 60)
+    if not Hours:
+        return f"{Minutes} min"
+    return f"{Hours} h {Minutes} min" if Minutes else f"{Hours} h"
+
+
 def DisplayPath(PathText: str) -> str:
     """/home/sarah/Notes -> ~/Notes, for labels (C:\\Users\\x\\Notes -> ~\\Notes)."""
     HomeText = str(Home)