Feat/gui2 stage6 3d scene prep - #36
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August 28, 2026 03:49
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Summary
Adds the nonvisual Stage 6 scene-preparation pipeline. Verified dataset and prepared-table sources can now be converted into deterministic, renderer-neutral scenes containing points, adjacency edges, ordered quads, optional scalar data, and topology evidence.
The implementation covers source profiling, scene construction and verification, lease lifecycle management, cancellation, stale-source handling, controller state, and exact source-row pick resolution.
Topology is derived from verified source sampling coordinates while preserving materialized order, gaps, and block boundaries. Malformed, stale, or tampered inputs are rejected.
Interactive rendering remains Stage 7 work. This PR introduces no public API, dependency, or dataset-schema changes.
Validation
The complete repository quality gate and Stage 6 scientific, integrity, lifecycle, and packaging acceptance suites pass.