fix(rendering): bound portal resource lifetime

Separate logical ownership, render publication, and GPU retirement across live entities, landblocks, particles, textures, mesh arenas, portal/UI teardown, and per-frame scratch storage. Add bounded DAT/texture caches, upload budgets, three-frame fence retirement, exact-incarnation appearance reconciliation, frame pacing, and extensive lifetime conformance coverage.\n\nThe seven-destination connected route now cuts peak working/private memory roughly in half, returns Caul to 125-153 FPS locally, and produces no WER or AMD reset.\n\nCo-authored-by: OpenAI Codex <codex@openai.com>

src/AcDream.Core/Meshing/CellMesh.cs

@@ -2,6 +2,7 @@ using System.Numerics;
 using AcDream.Core.Terrain;
 using DatReaderWriter;
 using DatReaderWriter.DBObjs;
+using AcDream.Core.Content;
 using DatReaderWriter.Types;
 
 namespace AcDream.Core.Meshing;
@@ -28,7 +29,7 @@ public static class CellMesh
     /// <see cref="GfxObjSubMesh.Translucency"/>. When null (e.g. offline tests)
     /// all sub-meshes default to <see cref="TranslucencyKind.Opaque"/>.
     /// </param>
-    public static IReadOnlyList<GfxObjSubMesh> Build(EnvCell envCell, CellStruct cellStruct, DatCollection? dats = null)
+    public static IReadOnlyList<GfxObjSubMesh> Build(EnvCell envCell, CellStruct cellStruct, IDatObjectSource? dats = null)
     {
         // Group output vertices and indices per surface dat id.
         var perSurface = new Dictionary<uint, (List<Vertex> Vertices, List<uint> Indices, Dictionary<(int pos, int uv), uint> Dedupe)>();

src/AcDream.Core/Meshing/GfxObjDegradeResolver.cs

@@ -1,5 +1,6 @@
 using DatReaderWriter;
 using DatReaderWriter.DBObjs;
+using AcDream.Core.Content;
 using DatReaderWriter.Enums;
 
 namespace AcDream.Core.Meshing;
@@ -66,7 +67,7 @@ public static class GfxObjDegradeResolver
     /// this; tests use the callback overload below for easy fakes.
     /// </summary>
     public static bool TryResolveCloseGfxObj(
-        DatCollection dats,
+        IDatObjectSource dats,
         uint gfxObjId,
         out uint resolvedId,
         out GfxObj? resolvedGfxObj)
@@ -156,7 +157,7 @@ public static class GfxObjDegradeResolver
     /// slot1 Id=0 MaxDist=FLT_MAX}). Callers that hydrate static geometry (always viewed at
     /// distance &gt; 0) skip such GfxObjs.
     /// </summary>
-    public static bool IsRuntimeHiddenMarker(DatCollection dats, uint gfxObjId)
+    public static bool IsRuntimeHiddenMarker(IDatObjectSource dats, uint gfxObjId)
         => IsRuntimeHiddenMarker(
             id => dats.Get<GfxObj>(id),
             id => dats.Get<GfxObjDegradeInfo>(id),

src/AcDream.Core/Meshing/GfxObjMesh.cs

@@ -2,6 +2,7 @@ using System.Numerics;
 using AcDream.Core.Terrain;
 using DatReaderWriter;
 using DatReaderWriter.DBObjs;
+using AcDream.Core.Content;
 using DatReaderWriter.Enums;
 
 namespace AcDream.Core.Meshing;
@@ -50,7 +51,7 @@ public static class GfxObjMesh
     /// normals (and potentially different UVs via <c>NegUVIndices</c>).
     /// </para>
     /// </remarks>
-    public static IReadOnlyList<GfxObjSubMesh> Build(GfxObj gfxObj, DatCollection? dats = null)
+    public static IReadOnlyList<GfxObjSubMesh> Build(GfxObj gfxObj, IDatObjectSource? dats = null)
     {
         // One bucket per (surface-index, isNeg) pair. Negative-side triangles
         // always land in a different bucket than their positive counterparts

src/AcDream.Core/Meshing/MotionResolver.cs

@@ -2,6 +2,7 @@ using DatReaderWriter;
 using DatReaderWriter.DBObjs;
 using DatReaderWriter.Types;
 using AcDream.Core.Physics;
+using AcDream.Core.Content;
 
 namespace AcDream.Core.Meshing;
 
@@ -75,7 +76,7 @@ public static class MotionResolver
     /// </summary>
     public static IdleCycle? GetIdleCycle(
         Setup setup,
-        DatCollection dats,
+        IDatObjectSource dats,
         IAnimationLoader animationLoader,
         uint? motionTableIdOverride = null,
         ushort? stanceOverride = null,
@@ -123,7 +124,7 @@ public static class MotionResolver
 
     public static AnimationFrame? GetIdleFrame(
         Setup setup,
-        DatCollection dats,
+        IDatObjectSource dats,
         IAnimationLoader animationLoader,
         uint? motionTableIdOverride = null,
         ushort? stanceOverride = null,
@@ -148,7 +149,7 @@ public static class MotionResolver
     /// </summary>
     private static (Animation, AnimData)? ResolveIdleCycleInternal(
         Setup setup,
-        DatCollection dats,
+        IDatObjectSource dats,
         IAnimationLoader animationLoader,
         uint? motionTableIdOverride,
         ushort? stanceOverride,