m3ultra ddd1e6827e Lane F R19 (v4.0-alpha close): the alpha gate + roads dimension + the first real-street money shot ...

A resolved the R18 findings (fragmentation cull/join, poster clamp, goldens pinned) + D verified; F gated.

- town_matrix.py: a `roads` dimension — a schema-v2 cache (roads[]) must build the REAL street graph
  (norm.mode==='roads', read via the plan_osm opts.report sink); synthetic/fixtures stay marched/synthetic.
  10 towns x 6 gates: real roads green everywhere; classic/default proven untouched (roads ride the cache
  schema, not a flag — 0x3fa36874 frozen).
- docs/shots/v4_alpha/katoomba_mainstreet.png: the first real-street money shot — Katoomba's actual main
  street (asphalt + lane markings, footpaths, a pedestrian crossing, a walking crowd, gig posters, B's town
  selector in-frame), PROCITY's look on real bones, 121k tris midday.
- docs: LANE_F_NOTES §18 (why F correctly HELD in R18 — the gate would have failed by design) + §19 (the
  close), README real-roads note, F-progress.

qa.sh --strict --soak GREEN 7/7. One filed NON-blocking finding: katoomba_real venue_night 200,965 tris
(+965 / 0.5% over the soft ceiling, poster-count-scales-with-real-edges driven; midday play is 121k) — a
v4.0-beta hardening item (A caps posters per real town), on the opt-in --matrix warn-gate, not a play view.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

2026-07-16 18:07:24 +10:00

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