Prepare documented WhatsApp injector with portable Python bundle

docs/runtime-assets.json

@@ -0,0 +1,8 @@
+{
+  "note": "Runtime asset hashes; integrity only, not a publisher signature",
+  "sha256": {
+    "math_probe.dll": "136620d96f4745a4c41edfe1f4a9272ef25fc060ddace1c0eec1027bf252e02a",
+    "search_probe.dll": "911beb9f6bb52390cde8a75562ca1d6c46f4629f641426a5250286903de60895",
+    "sqlite_inject.js": "f31f31e170d30c0c845a3759db631d084b0bb096f1b654a9d9168a1078daed3f"
+  }
+}