Update catalog metadata for tropical Africa tiles (west/central/east-africa)

Add east-africa regional tile (Perch v2 slice, tropical Africa mainland)

Add central-africa regional tile (Perch v2 slice, tropical Africa mainland)

Add west-africa regional tile (Perch v2 slice, tropical Africa mainland)

Add canada-alaska to region table

Update catalog manifests for canada-alaska tile

Add canada-alaska regional tile (boreal+arctic North America)

Publish regions.json + migrate tile countries to ISO 3166-1 alpha-2; models.json schema v2 (family_meta + per-entry requirements)

add models.json: machine-readable index with backend support, input contract and checksums

groups.json: western-palearctic in europe

Checksums: add western-palearctic binaries

Card: add western-palearctic tile row

Add western-palearctic regional tile (1599 classes)

Add 8 more island tiles: Madeira, Azores, Galapagos, New Caledonia, Cape Verde, Sao Tome & Principe, Seychelles, Mauritius; island-mode coverage maps

Add 5 small-island tiles: Iceland, Svalbard, Canary Islands (Europe), Reunion (Africa), Hawaii (Oceania)

Group regional catalog by continent (Europe/Asia/NA/SA/Africa/Oceania); add groups.json + group fields in metadata.json

Upload folder using huggingface_hub

Upload README.md with huggingface_hub

Upload README.md with huggingface_hub

Upload folder using huggingface_hub

Model card: embed per-tile coverage maps

Add per-tile coverage maps + metadata

Model card: drop remaining cross-repo reference

Model card: standalone framing, BirdNET Geomodel attribution

Add Perch v2 full variants + regional catalog (phase 1, 13 tiles)

initial commit