Make CSV export delimiters configurable via OSGi

Make CSV export delimiters configurable via OSGi: a task in LegoFlow-SWE (Harbor dataset). Problem: The CSV report export currently uses hardcoded delimiter characters: a comma ( , ) to separate fields and a semicolon ( ; ) to join multiple values within a cell (e.g., reference lists, tag arrays)…

The task

**Problem:** The CSV report export currently uses hardcoded delimiter characters: a comma (`,`) to separate fields and a semicolon (`;`) to join multiple values within a cell (e.g., reference lists, tag arrays). There is no way for administrators to change these delimiters without modifying and rebuilding the…

Part of Lego-X/LegoFlow-SWE.