Track bundled vendor runtime sources

vendor/README.md

@@ -1,13 +1,14 @@
-# Local Runtime Vendors
+# Vendored Runtime Source
 
-This directory is intentionally excluded from Git except for this note.
+TrueGrowth keeps selected third-party runtime source under this directory so a
+fresh checkout has the local bridges expected by the desktop app and local API.
 
-TrueGrowth may install or register local third-party runtimes here during
-development or desktop usage, such as ComfyUI, FunClip, social-auto-upload,
-Agent-Reach, and model download tools. Those folders can contain cloned
-repositories, Python or Node dependencies, generated logs, cookies, downloaded
-models, media outputs, and other machine-local state.
+Git tracks source files for runtimes such as ComfyUI, FunClip,
+social-auto-upload, AIGCPanel, and Agent-Reach. Git does not track machine-local
+state such as nested `.git` directories, Python or Node dependencies, logs,
+cookies, databases, account files, generated media, demo screenshots/videos,
+ComfyUI models, or downloaded model files.
 
-Keep those runtime folders out of the source repository. Reinstall, clone, or
-register them on each developer machine through the TrueGrowth local runtime
-setup flow or the matching script.
+After cloning, install each runtime's dependencies or use the TrueGrowth local
+runtime setup flow. Download large AI models on each machine instead of
+committing them to the repository.