[Noisemaker111]

Cuts 0.37.0 so games can adopt the model-variant LOD seam, the physics frame-rate fixes, the weapon shot spec and the tier flag.

Base: origin/beta ad945cd5; check-release-ancestor ok (release commit contains beta).

Carried merges, each an ancestor of this commit:

• Model-variant LOD seam: da00f16d (PR A model names cheaper mesh levels that the instanced prop path switches by camera distance #2325) - ModelConfig.variants, @jgengine/core/world/modelLod
• Scatter wiring: 1489058c (PR Scatter foliage switches each placement to its model's detail level by camera distance #2328) - scatter foliage switches each placement by camera distance
• Physics frame-rate invariance: faaf4f7e (PR Physics and movement integrate the same real time at any frame rate #2315) - fixed-step accumulation, Coulomb floor friction, trapezoidal gravity
• Weapon shot spec: ec22b181 (PR A weapon is a shot spec: delivery and contact stated as data, never inferred #2330) - packages/core/src/combat/shotSpec.ts
• Tier flag: 815326f9 (PR Let a capture or perf run say which tier it measured #2321) - capture/perf runs name the tier they measured
• check:no-blocking-wait reads code, not prose: ad945cd5 (PR check:no-blocking-wait reads code, not prose that describes waiting #2333) - the fix this cut needed

Not new in this release: the sun shadow texel-snap has been on beta since 036ebb57 (PR #1840, 2026-09-25); no shadow change landed since 0.36.0.

• Versions: lockstep SDK 0.37.0, CLI jgengine 0.34.0, @jgengine/github 0.24.0
• CHANGELOG.md + typed mirror carry the 16 folded fragments; changes/ emptied; api.md regenerated

Prevention: none - version-only release cut; changelog.ts is the generated mirror of CHANGELOG.md and changes no behavior

Verification: check-release-ancestor ok · check-release-set ok (13 packages) · check-version ok · check:no-blocking-wait ok on this cut · ship:preflight ok