update Android to use shared mosis-core library

- Remove duplicate sandbox sources from Android (now in core/)
- Update Android CMakeLists to link mosis-core
- Add OpenSSL crypto support for Android
- Update all includes to use core library headers
- Remove duplicate logger from Android (use core logger)
- Add openssl to Android vcpkg dependencies

This removes ~5,500 lines of duplicate code by sharing
the sandbox implementation between desktop and Android.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

src/main/cpp/vcpkg.json

@@ -6,6 +6,7 @@
     "freetype",
     "nlohmann-json",
     "minizip",
-    "sqlite3"
+    "sqlite3",
+    "openssl"
   ]
 }