[Backport] PR #7435 to release/3.0.0 (#7589)

Backports #7435 to `release/3.0.0`.

The release branch advanced after this backport was created, causing a
conflict in `docs/index.rst`. The original PR removes the walkthrough
entry, while the updated release branch removes the old own-project
entry. The resolution preserves both removals.

Deterministic validation confirmed that the final diff against the
updated release base has the same stable patch ID as the original merged
change and changes no paths outside the original PR.

| Field | Commit |
|---|---|
| Original merged change | `493ee92f8a9ccf62d1cd199ce90075fcd78c722a` |
| Updated release base | `e79616ee6b8cc344bfdc2ea812a6dec25769748d` |
| Resolved backport | `26e188e23eeaae24a1608407f62cdb43e1a1c8cc` |

Validation:
- `uv run isaaclab -f`
- `uv run --isolated --extra test -- make -C docs current-docs`

Co-authored-by: Mustafa H <34825877+StafaH@users.noreply.github.com>
Co-authored-by: Mustafa Haiderbhai <mhaiderbhai@nvidia.com>

Author: isaaclab-bot[bot]

docs/index.rst

@@ -92,6 +92,7 @@ Table of Contents
    source/setup/installation/index
    source/setup/environments
    source/setup/quickstart
+   source/setup/tutorial
    source/migration/migrating_to_isaaclab_3-0
 
 
@@ -112,7 +113,6 @@ Table of Contents
    :caption: Getting Started
    :titlesonly:
 
-   source/setup/walkthrough/index
    source/tutorials/index
    source/how-to/index
    source/overview/developer-guide/index

docs/source/_static/setup/walkthrough_1_1_result.jpg

@@ -68,8 +68,9 @@ For reinforcement learning, much of this has been done for you already! In most
 
 .. seealso::
 
-    We provide a more detailed tutorial for setting up an environment using the manager-based workflow at
-    :ref:`tutorial-create-manager-rl-env`.
+    Start with :ref:`tutorial-create-manager-rl-env` for a focused manager-based environment example. Then follow
+    the :ref:`SO-101 vial-placement tutorial <tutorial-so101-task>` for a complete manipulation task, including its
+    scene, MDP terms, reset curriculum, and agent configuration.
 
 
 Direct Environments
@@ -117,10 +118,9 @@ operations in the environment.
 
 .. seealso::
 
-    We provide a more detailed tutorial for setting up a RL environment using the direct workflow at
+    We provide a detailed tutorial for setting up a direct RL environment at
     :ref:`tutorial-create-direct-rl-env`.
 
-
 .. _IsaacGymEnvs: https://github.com/isaac-sim/IsaacGymEnvs
 .. _OmniIsaacGymEnvs: https://github.com/isaac-sim/OmniIsaacGymEnvs
 .. _Pytorch JIT: https://pytorch.org/docs/stable/jit.html