so101: pin lerobot version and include readme

Author: tenfoldpaper

extensions/README.md

@@ -4,4 +4,5 @@ To install hardware exentsion use
 ```shell
 pip install -ve <extension> # e.g. rcs_fr3
 ```
-Some extensions need further dependencies or further setups. Please to check out their readme pages for details.
+Some extensions need further dependencies or further setups. Please to check out their readme pages for details.
+When installing the SO101 extension, make sure to check its `README_IMPORTANT.md` for dealing with dependency conflict.

extensions/rcs_so101/README_IMPORTANT.md

@@ -0,0 +1,13 @@
+# RCS SO101 Extension
+
+## Package Dependency Issue Workaround
+The extension for SO101 depends on the `lerobot` package, which depends on `opencv-python-headless`, which uninstalls RCS' own `opencv-python` dependency install. 
+Since the extension doesn't care about the OpenCV-dependent parts of `lerobot`, this package works fine even with the full `opencv-python`, but it needs to be re-installed manually.
+You can do it by the following: 
+```
+pip uninstall opencv-python-headless
+pip uninstall opencv-python
+pip install opencv-python~=4.10.0.84
+```
+which will reinstall the correct version of OpenCV to the environment. 
+Unfortunately, there's no easy automated solution for it, so it needs to be done manually each time this extension is installed with `pip install -e .`.

extensions/rcs_so101/pyproject.toml

@@ -8,7 +8,7 @@ version = "0.5.0"
 description="RCS SO101 module"
 dependencies = [
     "rcs>=0.5.0",
-    "lerobot @ git+https://github.com/huggingface/lerobot.git",
+    "lerobot==0.3.3",
 ]
 readme = "README.md"
 maintainers = [