docs(architecture): consolidate modern runtime roadmap

Unify the unfinished Modern Pipeline work with Linux/headless goals around measured content, residency, streaming, render-scene, and runtime boundaries. Record twelve gated slices and preserve retail-shaped simulation plus the mandatory N.5 renderer.

Co-authored-by: Codex <codex@openai.com>
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Erik 2026-07-24 10:03:15 +02:00
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@ -1568,6 +1568,17 @@ port in any phase — no separate listing here.
> or throughput redesign. It is corrective ownership/reclamation work for a
> reproduced crash-class regression in the mandatory renderer, using the current
> architecture and preserving pixels/ranges.
>
> **2026-07-24 planning reconciliation:** a new connected nine-stop CPU/GPU/
> memory audit reproduced a larger portal allocation/GC storm (approximately
> 204 MiB in one frame, 276 ms maximum frame, 38 Gen-2 collections) while
> confirming stable entity/effect/GPU plateaus and low steady GPU utilization.
> The user requested a detailed modern architecture plan. The resulting
> [`2026-07-24-modern-runtime-architecture.md`](2026-07-24-modern-runtime-architecture.md)
> unifies the unfinished MP pak/render-world work with future Track LH, preserves
> retail-shaped simulation and the N.5 renderer, and reorders execution around
> prepared content and cost-budgeted streaming before render-ECS throughput.
> This records the plan only; implementation remains not started.
**Spec:** `docs/superpowers/specs/2026-07-05-modern-pipeline-design.md` (the
umbrella design — read it first). **Goal:** smoothness first (no frame over