SMB fixes: IPC$ ShareMode=Public, capabilities=0, FILE_ID_BOTH_DIRECTORY_INFORMATION Reserved2 removed, NextEntryOffset=0 for last entry, debug logging

vendor/smb-server/src/dispatch.rs

@@ -439,6 +439,13 @@ async fn dispatch_one(
         }
 
         let resp = handlers::dispatch_command(server, conn, &req_hdr, body_bytes).await;
+        
+        debug!(
+            command = ?req_hdr.command,
+            status = resp.status,
+            body_len = resp.body.len(),
+            "SMB2 handler response"
+        );
 
         // If the handler asked for a preauth snapshot (3.1.1), take it now.
         if let Some(sid) = resp.take_preauth_snapshot_for_session {