db: more sb improvments

VERSION

@@ -1 +1 @@
-2.3.7
+2.3.8

core/nfo_manager.py

@@ -699,11 +699,14 @@ class NFOManager:
             # Dates at the end
             if aired:
                 aired_elem = ET.SubElement(episode, "aired")
-                aired_elem.text = aired[:10] if len(aired) >= 10 else aired
+                # Convert datetime objects to strings
+                aired_str = str(aired)
+                aired_elem.text = aired_str[:10] if len(aired_str) >= 10 else aired_str
             
             if dateadded:
                 dateadded_elem = ET.SubElement(episode, "dateadded")
-                dateadded_elem.text = dateadded
+                # Convert datetime objects to strings
+                dateadded_elem.text = str(dateadded)
             
             # Add lockdata at the very end
             if lock_metadata:
@@ -735,9 +738,15 @@ class NFOManager:
         except Exception as e:
             print(f"❌ Error creating/updating episode NFO {nfo_path}: {e}")
     
-    def set_file_mtime(self, file_path: Path, iso_timestamp: str) -> None:
+    def set_file_mtime(self, file_path: Path, iso_timestamp) -> None:
         """Set file modification time to match import date"""
         try:
+            # Convert datetime objects to strings first
+            if hasattr(iso_timestamp, 'isoformat'):
+                iso_timestamp = iso_timestamp.isoformat()
+            elif not isinstance(iso_timestamp, str):
+                iso_timestamp = str(iso_timestamp)
+            
             # Parse ISO timestamp
             if iso_timestamp.endswith('Z'):
                 dt = datetime.fromisoformat(iso_timestamp.replace('Z', '+00:00'))