Blocking PR #129 items 1, 2 (plus polish 16 and 17):
- D-191 §8 prose rewritten to match the code. The previous amendment said
positions were `{x, y}` objects against a "typically 1024 × 512" grid,
but the generator, the six hand-authored templates, and all 2394
procedural seed files ship `[row, col]` integer arrays against a
`{"w": 512, "h": 256}` grid. The decision doc is now aligned with
reality: positions are `[row, col]`, the storage grid is 512 × 256,
and the row-first ordering is called out explicitly so readers can
cross-reference NumPy/flood-fill/A*/cost-grid conventions.
- §8 now follows the D-094 amendment pattern. The superseded 2026-04-10
prose is preserved verbatim as "Original (superseded)" with a dated
Amendment block on top — future readers can see what changed and why
instead of silently losing the history.
- brands.toml header gains a short Phase 2 boundary note. The 4 anchor
brands come from D-189 §5; the additional ~23 brands from D-189 §11
are deliberately deferred to Phase 3 — Phase 2 only needs the demand-
node plumbing and V-B01..V-B06 validation exercised end-to-end.
- systems-schema.sql `bodies.terrain_reference` comment now pins the
repo-root-relative path convention (wiki/star-systems/<slug>/bodies/
<body_id>/heightmap.png) so the three downstream pipelines (populate,
atlas generator, client loader) share a documented contract instead
of drifting against an unwritten convention.
jpmschweitzer
56d524f37d