fix(render): production packed classifier carries the foliage flags; deferred-alpha replay keeps them (Campaign VM VM6 review 2)

Narrow re-review of 43e3abed found every A1-A5/A7/A8 item resolved but
one new blocker in the production packed classifier.

F1 (BLOCKER): RetailPViewPassExecutor.DrawPackedProductionRoute — the
route production world geometry actually draws from — never computed
FoliageFlags at all. WbDrawDispatcher.PackedOracle.cs's
ClassifyPackedBatches built its GroupKey with the field defaulting to
0u, and GetOrCreatePackedGroup never copied it onto the created
InstanceGroup, so production BatchData.flags bits 1/2 were always zero
for every scenery entity: the world geometry never swayed even though
the independently-classified shadow caster did, so shadows visibly
swayed under rigid trees. Both classifier call sites now compute
FoliageFlags via the identical FoliageWindClassification.Classify call
and entity-scoped HasCutoutSubset OR the classic (non-packed) path
uses, and GetOrCreatePackedGroup copies it exactly like
GetOrCreateInstanceGroup always has. The G2/G3 classified-output
digest (AddOpaqueSubmissionGroup/BuildTransparentSubmissionDigest) now
also folds GroupKey.FoliageFlags into its hash — present in the key
since round 1 but never actually read by either digest function, so a
content-level (not just group-count-level) classic-vs-packed
divergence is now caught.

F2 (medium): the delayed-alpha replay path (PrepareDeferredAlphaDraws)
hardcoded Flags = 1, dropping bits 1/2 for any group replayed through
it — a trunk instance promoted into the alpha-blend group mid-fade
(the #188 translucency-promotion case) would stop swaying for the
duration of its fade. Now 1u | key.FoliageFlags.

F3 (nit): ComputeEntityHasCutoutSubset's three call sites (classic,
caster, and the newly-fixed packed classifier) each allocated a
closure over _meshAdapter per Setup entity per frame. A new
context-taking overload passes the mesh adapter as an explicit
argument to a static lambda instead, letting the compiler cache one
delegate for the method's lifetime rather than allocating fresh ones.

A3 test gap: WbDrawDispatcher.BindDirectionalShadowReceiver is now
internal so DirectionalShadowGpuTests can drive it directly with a
bare RecordingGpuDevice pass encoder, proving it emits
UniformAtmosphericFrame with the exact buffer/offset/size a
DirectionalShadowFrameBinding carries — paired with the existing test
proving that binding carries the caster's real bind forward untouched.

F1's missing test: PackedDispatcherOracleTests chains
FoliageWindClassification.Classify (called with the packed
classifier's exact argument shape) for a real 0x8... scenery entity id
through BuildIndirectArrays — the same shared, already-tested
production step both classic and packed group lists feed into BatchData —
proving the resulting flags word carries bit 0x2. Driving
ClassifyPackedBatches/GetOrCreatePackedGroup directly was not a "cheap
test": both are private instance methods reachable only through the
full RetailPViewPassExecutor route, which needs a real IGpuDevice,
world-pass scope, mesh manager, and compiled pipelines to construct —
no test anywhere in the App test project stands one up.

Nits: F4 corrects foliage_wind.glsl's header comment from "bit 31" to
the top-nibble test; F5 documents at the receiver bind site that the
caster's own AtmosphericFrameBufferBinding has its seven ABI v1
members zero/Identity by construction (only the two v2 wind members
are valid) — safe today because mesh_atmospheric.vert reads that
binding solely for wind displacement, flagged as a footgun for a
future v1-reading addition to that shader; F6 notes in the plan
(rather than fixes) that EntityCacheEntry does not proactively
invalidate when FoliageWindExclusions changes on a pack switch —
harmless with the pack off, self-heals on the entry's next natural
eviction.

foliage_wind.glsl's F4 comment-only change updated the SPIR-V
manifest's source hashes for the five includers (mesh_atmospheric.vert
+ four directional_shadow_world_* casters); the compiled .spv bytes
are byte-identical since comments do not affect bytecode.

Verify: Release build 0 warnings/0 errors. App hermetic-lane filter
6,043/0 failed. Core.Tests 4,695/0 failed. RenderPackValidator 30/30.
Full hermetic-filtered solution: 15,271/0 failed across 15 projects.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

src/AcDream.App/Rendering/Shaders/foliage_wind.glsl

@@ -2,8 +2,10 @@
 #define ACDREAM_FOLIAGE_WIND_GLSL
 
 // Campaign VM VM6 (2026-08-22): weather-driven foliage sway for procedural
-// scenery (trees/bushes — see ProceduralSceneryIdAllocator, bit 31 of the
-// entity id). Shared verbatim between mesh_atmospheric.vert (the world
+// scenery (trees/bushes — see ProceduralSceneryIdAllocator.IsInNamespace,
+// the top nibble 0x8 of the entity id — NOT bit 31 alone, which also
+// matches LandblockStaticEntityIdAllocator's 0xC... namespace). Shared
+// verbatim between mesh_atmospheric.vert (the world
 // receiver) and the four directional_shadow_world_*.vert casters so a
 // displaced leaf's shadow moves with it by construction — the caster and
 // receiver read the identical uAtmosphereClockWind/uAtmosphereWindAmplitude

src/AcDream.App/Rendering/Shaders/spv/shaders.manifest.json

@@ -151,7 +151,7 @@
       "stages": [
         {
           "stage": "vert",
-          "sourceSha256": "ae6026d4bc04bc07e5c67c1dca6c3dfd16ad377104153808a2e11b60bbe492f7",
+          "sourceSha256": "a30acec1fd60fcbc8a0cfa377726a65077a82836cbcf730cbcc756ce1b9299c5",
           "compiled": true
         },
         {
@@ -167,7 +167,7 @@
       "stages": [
         {
           "stage": "vert",
-          "sourceSha256": "c26158346a1db03e305192a23b595d288ed27a3622b8c2b49cc2fe6b27550946",
+          "sourceSha256": "7651a9622227c0322f75c8e3af2685bceb9bc28b692b53df305ec73161e589ff",
           "compiled": true
         },
         {
@@ -183,7 +183,7 @@
       "stages": [
         {
           "stage": "vert",
-          "sourceSha256": "c752d8f85e0aa4a5bd2b7cb8679276ba46850844362eef0efce885401021433b",
+          "sourceSha256": "9513c5baa4f269a9ddc265e9fa49c71a2834a004aca36939b99f9b5067d25ed1",
           "compiled": true
         },
         {
@@ -199,7 +199,7 @@
       "stages": [
         {
           "stage": "vert",
-          "sourceSha256": "e483aae19e35ad9bdd7226cb1604db33268f8ae4474d774dfa08d5ca681717ee",
+          "sourceSha256": "edf89ab8a8c02bf8fc3099b091ca3508a5b9c18e2ebbfe5bb5a7d6c50a82c745",
           "compiled": true
         },
         {
@@ -215,7 +215,7 @@
       "stages": [
         {
           "stage": "vert",
-          "sourceSha256": "949a50149a6dd7f8f2b44fa035ab80a4227a71a1cbd4ec812bf451d1c2971db3",
+          "sourceSha256": "a00aa83a8bd8ab4791b60bfb967a80b43bafcb0bf758f5e2e056b4272f3c8b1b",
           "compiled": true
         },
         {