Update portal to ds_260603 final benchmark (20 ep / 26 testbeds) + downloads

Add CLI data-access link to flash-flood-benchmark-data

Update portal to ds_260603 final benchmark (20 ep / 26 testbeds) + downloads

Update portal to L4: 58 accepted gage packages, 30 episodes (manual review)

Colorbar shows exact vmin/vmax per gage (MRMS mm, CREST m3/s/km2)

Overlay opacity sliders (MRMS+CREST); remove basemap opacity

MRMS QPE colormap + basemap opacity slider + NaN fix

Fix NaN -> null in ncei_hwm.json (976 values)

Add MRMS/CREST overlays, NCEI points, HWM layers

Use HF Dataset CDN for figures on HF deployment

Upload portal: 62 episodes, 161 gages, real data

initial commit