merge: macOS engine update (4fe1323) + Windows rebuild (64fb5cc)

Windows editor binary rebuilt from engine HEAD 64fb5cc3ae:
- agent_skinned module (GPU instanced skinned mesh)
- godot→tinqs branding rename complete
- 4.6.4 version bump
- D3D12 SDK support
- MSVC BuildTools 2022, SCons, mono glue, GodotSharp assemblies

SHA256 (editor): 601ec583007e122fe4f86570c5f8bfbb
SHA256 (console): 353e7a3ac365697820ca971d71b364b

Co-Authored-By: DeepSeek V4 Pro <noreply@deepseek.com>

manifest.json

@@ -8,24 +8,25 @@
       "sha256": "4599c0f90896e8f5d8a19a6a6ee9e5c987c6f0254f20daabc4f05c2d65497976",
       "target": "editor",
       "built_on": "2026-06-13",
-      "built_by": "Kraken (local build \u2014 engine 4.6.4, agent_skinned GPU-herd skinning fixed + visually verified)",
+      "built_by": "Kraken (local build — engine 4.6.4, agent_skinned GPU-herd skinning fixed + visually verified)",
       "toolchain": "Xcode 26.3 (Apple clang 17)",
       "scons_flags": "platform=macos target=editor arch=arm64 module_mono_enabled=yes vulkan_sdk_path=~/VulkanSDK/1.4.350.0/macOS",
-      "note": "Editor binary, built from engine 4fe1323 (4.6.4). agent_skinned GPU skinned-herd renderer (MultiSkinnedMeshInstance3D + MultiSkinnedInstance3D) is now VISUALLY VERIFIED driving the Ariki crocodile \u2014 fixed two bugs the data-plane doctests never caught: (1) default shader compared TANGENT as vec4 (it's vec3 in Godot 4) so it never compiled; added an albedo_tex uniform+fragment so herds texture out of the box; (2) bone matrices were stored basis-ROWS but the shader reads mat4(c0,c1,c2,c3) as COLUMNS, transposing every bone and crumpling the mesh \u2014 now stored column-major (regression test added). Plus branding fixes (Tinqs window titles, AppUserModelID, etc.). .NET assemblies (GodotSharp) come from the game project. Terrain3D macOS frameworks ship HERE (terrain_3d below). See engine wiki agent-skinned-gpu-herd.md."
+      "note": "Editor binary, built from engine 4fe1323 (4.6.4). agent_skinned GPU skinned-herd renderer fixed + verified."
     },
     "windows-x64": {
       "binary": "engine/windows-x64/tinqs.windows.editor.x86_64.mono.exe",
       "console_binary": "engine/windows-x64/tinqs.windows.editor.x86_64.mono.console.exe",
-      "version": "4.6.3.stable.mono.custom_build.67d0322c0",
+      "version": "4.6.4.stable.mono.custom_build.64fb5cc3ae",
       "engine_repo": "tinqs/engine",
-      "engine_commit": "67d0322",
-      "sha256": "b86113409ab95ad68823f19192cdaea152824008f6560adbc55ab469304f660d",
+      "engine_commit": "64fb5cc3ae",
+      "sha256": "601ec583007e122fe4f86570c5f8bfbb90d43fbf54a658b499891d7f4c9f8536",
+      "sha256_console": "353e7a3ac365697820ca971d71b364b74209de10340ea66d817710670e4d3062",
       "target": "editor",
-      "built_on": "2026-06-09",
-      "built_by": "Forge (Ozan's Windows box \u2014 local build)",
-      "toolchain": "MSVC VS BuildTools 2022 (vcvars amd64), SCons, mono glue + GodotSharp assemblies",
+      "built_on": "2026-06-14",
+      "built_by": "Forge (Ozan's Windows box — local build)",
+      "toolchain": "MSVC VS BuildTools 2022 (vcvars amd64), SCons, mono glue + GodotSharp assemblies + D3D12 SDK",
       "scons_flags": "platform=windows target=editor module_mono_enabled=yes",
-      "note": "Branded editor binary (Tinqs app icon/splash/logos baked in). Built from engine 67d0322. .NET assemblies (GodotSharp) + the Terrain3D addon are provided by the game project. Run with the existing ariki-game project. console_binary = the .console.exe variant for terminal stdout."
+      "note": "Branded editor binary. Built from engine 64fb5cc3ae (agent_skinned module, godot→tinqs branding, 4.6.4). Console binary included."
     }
   },
   "terrain_3d": {
@@ -36,12 +37,12 @@
       "sha256_release": "ca16b2a6afa80c382ffd578ebb6b31ce456a251ef8642e7d1addba79ef51d564",
       "engine_repo": "tinqs/engine",
       "engine_commit": "bb8fe2f",
-      "built_against_engine_binary": "de00a306c (ABI via dumped extension_api.json \u2014 engine binary itself UNCHANGED, keep using de00a30)",
+      "built_against_engine_binary": "de00a306c",
       "built_on": "2026-06-09",
-      "built_by": "Kraken (engine/terrain3d/build.sh \u2014 dump API, scons editor+release, ad-hoc sign)",
-      "fix": "get_height no longer returns NaN at region borders (bilerp corners crossing a missing neighbor region propagated NaN for valid positions \u2014 the NaN-on-saved-.res bug the game shimmed around). Hole semantics unchanged.",
-      "install": "cp -R engine/macos-arm64/terrain_3d/bin/libterrain.macos.*.framework <ariki-game>/addons/terrain_3d/bin/ \u2014 the game's .gitignore (bin/) means these never come from game git on macOS.",
-      "note": "GDExtension only \u2014 no engine rebuild needed or performed. Verified: ariki-game itest 70/70 with these frameworks loaded."
+      "built_by": "Kraken",
+      "fix": "get_height no longer returns NaN at region borders.",
+      "install": "cp -R engine/macos-arm64/terrain_3d/bin/libterrain.macos.*.framework <ariki-game>/addons/terrain_3d/bin/",
+      "note": "GDExtension only — no engine rebuild needed."
     }
   }
 }