feat(mod): add hello-world script mod

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

mod/_metadata/modinfo.json

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

mod/content/mod.script.tl

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+local mod = {}
+
+mod.preRunFn = function(_configDict : {{string, string}}, _allModParams : {string : {string : integer}}, _baseConfig : BaseConfig)
+	print("[haylan_tf3_overtake] hello from preRunFn")
+end
+
+mod.postRunFn = function(_configDict : {{string, string}}, _allModParams : {string : {string : integer}})
+	print("[haylan_tf3_overtake] hello from postRunFn")
+end
+
+return mod

mod/mod.json

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+{
+    "modId": "haylan_tf3_overtake",
+    "revision": 1,
+    "severityAdd": "None",
+    "severityRemove": "Warning",
+    "cosmetic": false,
+    "preRunScript": {
+        "fileName": "haylan_tf3_overtake::mod.script@preRunFn"
+    },
+    "postRunScript": {
+        "fileName": "haylan_tf3_overtake::mod.script@postRunFn"
+    }
+}