Add ParrelSync 1.5.2 for local two-client testing

Editor-only clone tool so the capsule/bot replication can be tested with
a second Unity instance (joins the host via Relay code) without a separate
machine or a standalone build. Clone lives at ../jankenbots_clone_0
(sibling of the repo, symlinks Assets + ProjectSettings back to it).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

Packages/packages-lock.json

@@ -315,6 +315,13 @@
       },
       "url": "https://packages.unity.com"
     },
+    "com.veriorpies.parrelsync": {
+      "version": "https://github.com/VeriorPies/ParrelSync.git?path=/ParrelSync",
+      "depth": 0,
+      "source": "git",
+      "dependencies": {},
+      "hash": "a122dc90cbe2d4cc2669ddad00b12b3917ef934b"
+    },
     "com.unity.modules.accessibility": {
       "version": "1.0.0",
       "depth": 0,