chore: checkpoint web Blender migration source, tools and docs

Accumulated uncommitted work: GHOST Web backend, WebGL/GPU web layer,
web workflow engine and protocol, tooling, docs and task records.
Large generated evidence, user-testing archives, build snapshots and
imported test assets remain untracked.

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

web/package-lock.json

@@ -11,6 +11,9 @@
         "@ffmpeg/core": "^0.12.10",
         "@ffmpeg/ffmpeg": "^0.12.15",
         "@ffmpeg/util": "^0.12.2",
+        "fflate": "0.8.3",
+        "naga-wasm": "30.1.0",
+        "@webgpu/glslang": "0.0.15",
         "react": "19.2.8",
         "react-dom": "19.2.8"
       },
@@ -831,6 +834,12 @@
         }
       }
     },
+    "node_modules/@webgpu/glslang": {
+      "version": "0.0.15",
+      "resolved": "https://registry.npmjs.org/@webgpu/glslang/-/glslang-0.0.15.tgz",
+      "integrity": "sha512-niT+Prh3Aff8Uf1MVBVUsaNjFj9rJAKDXuoHIKiQbB+6IUP/3J3JIhBNyZ7lDhytvXxw6ppgnwKZdDJ08UMj4Q==",
+      "license": "glslang/LICENSE.txt"
+    },
     "node_modules/acorn": {
       "version": "8.18.0",
       "resolved": "https://registry.npmjs.org/acorn/-/acorn-8.18.0.tgz",
@@ -1144,8 +1153,7 @@
     "node_modules/fflate": {
       "version": "0.8.3",
       "resolved": "https://registry.npmjs.org/fflate/-/fflate-0.8.3.tgz",
-      "integrity": "sha512-tbZNuJrLwGUp3zshBtdy4W+ORxZuIh8a5ilyIEQDC5rY1f3U20JMry0Ll3WBzU58EZKsEuJFXhb5gwv8CsPvgA==",
-      "dev": true
+      "integrity": "sha512-tbZNuJrLwGUp3zshBtdy4W+ORxZuIh8a5ilyIEQDC5rY1f3U20JMry0Ll3WBzU58EZKsEuJFXhb5gwv8CsPvgA=="
     },
     "node_modules/file-entry-cache": {
       "version": "8.0.0",
@@ -1596,6 +1604,15 @@
       "integrity": "sha512-6FlzubTLZG3J2a/NVCAleEhjzq5oxgHyaCU9yYXvcLsvoVaHJq/s5xXI6/XXP6tz7R9xAOtHnSO/tXtF3WRTlA==",
       "dev": true
     },
+    "node_modules/naga-wasm": {
+      "version": "30.1.0",
+      "resolved": "https://registry.npmjs.org/naga-wasm/-/naga-wasm-30.1.0.tgz",
+      "integrity": "sha512-uROKRlHP61ZIBab0ztBIFN8dWloDm+fdgO+cg5A7m7KK50HeHECiV0C2HvV1a+XNYiHVQZ6VV7EYGWbW7LS3Ug==",
+      "license": "MIT OR Apache-2.0",
+      "engines": {
+        "node": ">=24.12"
+      }
+    },
     "node_modules/nanoid": {
       "version": "3.3.18",
       "resolved": "https://registry.npmjs.org/nanoid/-/nanoid-3.3.18.tgz",