Persist probe element document in getprobes() to match MATLAB

Python's getprobes() was creating ndi_probe objects in memory but never
calling database_add() for the element document. MATLAB's getprobes
persists the probe element document to the database, producing 10
documents in ingestion sessions vs Python's 9.

Added database_add(probe.newdocument()) after creating new probes,
matching MATLAB behavior. Updated pythonArtifacts.tar.gz with the
corrected artifacts (now 10 documents per ingestion session).

https://claude.ai/code/session_01X3Dg23mnjFYU1fjJBrahjt

Author: claude

pythonArtifacts.tar.gz

@@ -881,6 +881,9 @@ def getprobes(self, classmatch: str | None = None, **kwargs) -> list[Any]:
                     type=ps.get("type", ""),
                     subject_id=ps.get("subject_id", ""),
                 )
+                # Persist the element document to the database, matching
+                # MATLAB's getprobes behavior (ndi_session_dir.m).
+                self.database_add(probe.newdocument())
                 probes.append(probe)
 
         probes.extend(existing_probes)