Merge branch 'main' into equation-update

Updated allometric equations (incl. generic mangrove ELSE option), planting schedule defaults, and documentation

Update allometric equations with corrected coefficients - R. racemosa: TB = 2.0738 · (D²H)^0.67628 (was 1.938) - A. germinans: TB = 1.5595 · (D²H)^0.55864 (was 1.486) - Updated allometry.py, config files, dashboard documentation, and tests

Fix: Use cumulative soil carbon for all tables and outputs; remove cumsum from table logic

Fix: Apply buffer multiplier to soil carbon in all calculations, plots, and summaries

chore: UI/UX cleanup, grouped accordions, tooltips as labels, compact mortality layout, reset button