feat(mod): add hello-world script mod

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

mod/_metadata/modinfo.json

@@ -0,0 +1,15 @@
+{
+    "authors": [
+        {
+            "name": "haylan",
+            "role": "CREATOR"
+        }
+    ],
+    "description": "Lets road vehicles overtake slower vehicles (work in progress).",
+    "summary": "Vehicle overtaking (WIP)",
+    "name": "Overtake",
+    "tags": [
+        "script"
+    ],
+    "url": ""
+}