docs(research): TpF3 mod tooling and structure, offline wiki/script-doc copies

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

.examples/ug_tf3_example_config_change/_metadata/modinfo.json

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+{
+    "authors": [
+        {
+            "name": "Urban Games",
+            "role": "CREATOR"
+        }
+    ],
+    "description": "Simple config change mod",
+    "summary": "Example config change",
+    "name": "Example Base Config Change",
+    "tags": [
+        "script"
+    ],
+    "url": ""
+}

.examples/ug_tf3_example_config_change/content/mod.script.tl

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+local mod = {}
+
+mod.preRunFn = function(_configDict : {{string, string}}, _allModParams : {string : {string : integer}}, baseConfig : BaseConfig)
+
+	baseConfig.trainAccelerationFactor = 0.5
+
+end
+
+return mod

.examples/ug_tf3_example_config_change/mod.json

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+{
+    "modId": "ug_tf3_config_change",
+    "revision": 1,
+    "severityAdd": "None",
+    "severityRemove": "Warning",
+    "cosmetic": false,
+    "preRunScript": {
+        "fileName": "ug_tf3_config_change::mod.script@preRunFn"
+    }
+}