Rivers/basins/attractors ride the existing whole-body layer1 field —
neither AtlasLayerResponse ceiling touched, no tagged-envelope
migration. Per-rung refinement is client-side class filtering on the
additive river_class (distinct from T-1162's server-side Nyquist
cutoff: a fixed finite graph has nothing to truncate). General rule:
discrete map features ride the whole-body overlay family filtered
client-side; continuous per-metre fields ride the windowed per-cell
arrays — wave 2's roads/settlements inherit this unchanged. Riparian
vegetation response is the named T-1168 forward contract, deferred.
Tickets: T-1156
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
jpmschweitzerandClaude Fable 5
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