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>

tools/web/prepare-browser-python.py

@@ -0,0 +1,43 @@
+#!/usr/bin/env python3
+"""Publish the existing local Python/WASM runtime without running it."""
+import argparse
+import hashlib
+import json
+from pathlib import Path
+import shutil
+
+ROOT = Path(__file__).resolve().parents[2]
+
+
+def main():
+    parser = argparse.ArgumentParser(description=__doc__)
+    parser.add_argument('--source', type=Path, default=Path('/home/mes123456/workingRobotDKToWeb/public/wasm/pyodide'))
+    args = parser.parse_args()
+    origin = json.loads((args.source / 'runtime-manifest.json').read_text())
+    package = json.loads((args.source / 'package.json').read_text())
+    lock = json.loads((args.source / 'pyodide-lock.json').read_text())
+    destination = ROOT / 'web/app/public/vendor/pyodide'
+    files = []
+    for item in origin['files']:
+        name = item['path']
+        if Path(name).name != name:
+            raise ValueError('Runtime manifest must contain only file names')
+        source = args.source / name
+        digest = hashlib.sha256(source.read_bytes()).hexdigest()
+        if digest != item['sha256'] or source.stat().st_size != item['bytes']:
+            raise ValueError('Local artifact does not match its manifest: ' + name)
+        files.append((source, dict(item)))
+    destination.mkdir(parents=True, exist_ok=True)
+    for source, item in files:
+        target = destination / item['path']
+        if not target.exists() or hashlib.sha256(target.read_bytes()).hexdigest() != item['sha256']:
+            shutil.copy2(source, target)
+    manifest = dict(schemaVersion=1, status='COPIED_UNVERIFIED', validation='NOT_RUN',
+                    source=str(args.source), package=package['version'], python=lock['info']['python'],
+                    abi=lock['info']['abi_version'], files=[item for _, item in files])
+    (destination / 'runtime-manifest.json').write_text(json.dumps(manifest, indent=2) + '\n')
+    print(json.dumps(manifest))
+
+
+if __name__ == '__main__':
+    main()