Clarify Decision::StopRelocation behavior in cell-based relocation

[asonnino]

Question

The Decision::StopRelocation enum variant is used in both WAL-based and cell-based relocation strategies, but its behavior differs:

Current Behavior

WAL-based relocation (line 315):

• Decision::StopRelocation breaks the entire relocation loop
• Stops processing all remaining WAL entries

Cell-based relocation (line 466-468):

• Decision::StopRelocation only breaks the current cell's processing loop
• Continues to the next cell in the sequence

The Question

Should Decision::StopRelocation in cell-based relocation:

1. Stop the entire relocation run (consistent with WAL-based behavior)?
2. Only skip the current cell (current behavior)?