Add hydrothermal vent and cold seep distributions

[boettiger-lab-llm-agent]

Dataset

Global hydrothermal vent and cold seep locations — point/polygon data of chemosynthetic ecosystems (InterRidge Vents Database and/or ChEssBase).

Upstream STAC import: boettiger-lab/data-workflows#66

Context

Vents and seeps host unique chemosynthetic communities and are priority features for deep-sea conservation planning. Key targets for evaluating MPA candidate placement in abyssal and mid-ocean ridge settings.

STAC catalog status

Tracked in data-workflows#66. Not yet in catalog.

App integration

• STAC collection available in catalog
• PMTiles point layer added to layers-input.json (layer_type: "circle")
• H3 hex parquet for SQL spatial joins
• System prompt updated with vent/seep ecological context