jpmschweitzerandClaude Opus 4.8 b73b4e6d92 feat(simulation): Layer-1 water bearing + D-234 waterfront rule (#957) ...

Close the last D-234 piece — terrain water-direction extraction wired through
to founding orientation and the quarter waterfront rule:

- Layer 1: TerrainAnalysis::water_bearing — 8-octant integer bearing toward the
  nearest water from the water_dist gradient (D-010, no atan2). Stored on
  GeographicAttractor.water_bearing (360 = none).
- #956 founding orientation: coastal/river settlements now get a real
  water-facing bearing (the anchoring attractor's), replacing the 0 stub.
- #957 waterfront rule (D-234b): the water-facing quarter edge (from the
  settlement's Coastal founding orientation) drops its block setback to 0 so
  buildings present flush to the quay (dock-orthogonal). Typed Edge + coastal_edge
  + per-block gating.

Golden + atlas_response fixture rebaked (additive water_bearing field only).
8 new tests. All integer-deterministic (D-010).

Pending: the waterfront rule reads context.founding_orientation, which
city_context_reader still stubs to Cardinal — real per-settlement orientation
reaches quarter generation once the Layer-3 placement -> Layer-4 GenerateSkeleton
dispatch is wired (the remaining cross-layer integration).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

2026-06-06 10:22:14 +02:00

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