V4.8.8.61 — CAMPAIGN REFERENCE VIEWER

Added a visible reference viewer to the unified Campaign Editor.

- VIEW SELECTED REFERENCE opens the complete reference for SoA, ToB, BP2, or the selected custom campaign.
- VIEW STOCK CAMPAIGN.2DA opens the exact verified stock CAMPAIGN.2DA bundled with the editor.
- Built-in reference files are included under CAMPAIGN_REFERENCES.
- Custom reference view shows every physical field/value from the selected CAMPAIGN.2DA row.
- No fake built-in rows are written to CAMPAIGN.2DA.
