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

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

docs/reference/script-doc/api.md

@@ -0,0 +1,89 @@
+<!-- Source: https://wiki.transportfever3.com/script-doc/api.html (fetched 2026-10-04) -->
+
+[index](index.html) / api
+
+---
+
+# Module api[🔗](#api)
+
+```
+global record api  res: Res
+  gui: Gui
+  engine: Engine
+  type: Type
+  util: ApiUtil
+  cmd: Cmd
+  modhub: ModhubApi
+end
+global app: App
+global loaderHelper: LoaderHelper
+```
+
+## Category: globals[🔗](#category-globals)
+
+### api[🔗](#$api~api)
+
+```
+global record api  res: Res
+  gui: Gui
+  engine: Engine
+  type: Type
+  util: ApiUtil
+  cmd: Cmd
+  modhub: ModhubApi
+end
+```
+
+### api.res[🔗](#$api~api.res)
+
+```
+api.res: Res
+```
+
+### api.gui[🔗](#$api~api.gui)
+
+```
+api.gui: Gui
+```
+
+### api.engine[🔗](#$api~api.engine)
+
+```
+api.engine: Engine
+```
+
+### api.type[🔗](#$api~api.type)
+
+```
+api.type: Type
+```
+
+### api.util[🔗](#$api~api.util)
+
+```
+api.util: ApiUtil
+```
+
+### api.cmd[🔗](#$api~api.cmd)
+
+```
+api.cmd: Cmd
+```
+
+### api.modhub[🔗](#$api~api.modhub)
+
+```
+api.modhub: ModhubApi
+```
+
+### app[🔗](#$api~app)
+
+```
+global app: App
+```
+
+### loaderHelper[🔗](#$api~loaderHelper)
+
+```
+global loaderHelper: LoaderHelper
+```