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docs(physics): close Slice I evidence and roadmap

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Record the accepted flat-authoritative collision cutover, production parsed-graph removal, exact rollbacks, zero-residency connected gates, and RDP measurement boundary. Reconcile architecture, milestones, roadmap, issue ledger, agent instructions, and the active Slice J handoff.

Validated by the existing zero-warning Release build, 8,413 passing Release tests with five pre-existing skips, 201 focused closeout tests, and both exact-binary connected routes.

Co-authored-by: Codex <codex@openai.com>
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Erik 2026-07-25 18:44:43 +02:00
parent 82f8d4f82e
commit afebbe3eca
11 changed files with 257 additions and 71 deletions
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17
docs/architecture/worldbuilder-inventory.md
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@ -140,8 +140,8 @@ strict little-endian codec and `IPreparedCollisionSource`.
`PakPreparedAssetSource` implements the render and collision interfaces over
one mmap; it does not create a second DAT reader or mapping. CellStruct
payloads alias only after exact serialized-byte comparison, while each
EnvCell topology remains independently keyed. Production traversal is still
the parsed graph oracle until Slice I6. Full-catalog evidence:
EnvCell topology remains independently keyed. Production traversal remained
on the parsed graph oracle until the later Slice-I cutover. Full-catalog evidence:
`docs/research/2026-07-25-slice-i3-prepared-collision-package.md`.
**Slice I5 dual-publication seam (2026-07-25).** Near-tier
@ -155,6 +155,19 @@ fault. This is still one `DatCollection` and one prepared-package mmap, not a
second reader or a WorldBuilder runtime dependency. Evidence:
`docs/research/2026-07-25-slice-i5-dual-collision-shadow.md`.
**Slice I6/I7 flat-authoritative closeout (2026-07-25).** Production
`PhysicsDataCache` now publishes only immutable flat GfxObj, Setup,
CellStruct, and EnvCell-topology records from the validated package. Stable
world state strips temporary `PhysicsDatBundle` source material, and near
landblock builds discard raw Environment/GfxObj collision graphs once the
flat closure exists. Parsed graph constructors remain explicit
test/bake/equivalence oracles only; gameplay has no graph fallback or referee.
Both exact-binary connected routes report `0/0/0` retained parsed collision
graphs at every stable checkpoint while flat residency remains populated.
This remains one `DatCollection`, one preparation algorithm, and one package
mmap. Evidence:
`docs/research/2026-07-25-slice-i7-closeout.md`.
**Retail VFX hook compatibility seam (2026-07-14).** Chorizite.DatReaderWriter
2.1.7 models `CreateBlockingParticleHook` as the common hook header only, while
retail inherits the complete `CreateParticleHook` payload. The narrow readers in