Fixes stale single-source references for dependency pins

[myurasov-nv]

Description

Fixes three references that drifted from the single-source-of-truth root pyproject.toml: the wheel builder comment pointed at python_packages.toml (removed long ago), daily-compatibility.yml parsed [tool.isaaclab.versions] with a hand-written regex (now tomllib, byte-identical output), and the pip-installation docs claimed rl_games is excluded from the wheel extras while gen_pyproject.py actually includes it in all/rl-games.

	Before	After
Wheel builder comment	references nonexistent python_packages.toml	describes the actual copy step
OV pins in daily-compatibility	regex over raw TOML text	tomllib parse
Docs all extra	"SB3, SKRL, RSL-RL"	full list incl. RL-Games, Rerun, Mimic, RLinf

Reproduction

1. grep python_packages.toml -r . returns only the stale comment; no such file exists.
2. python3 tools/wheel_builder/gen_pyproject.py pyproject.toml /tmp/p.toml 1.2.3 && grep rl-games /tmp/p.toml shows rl_games in the rl-games and all extras, contradicting the docs note.
3. Run both the old regex and new tomllib snippets against pyproject.toml: identical output.

Checklist

• I have read and understood the contribution guidelines
• I have run the pre-commit checks with ./isaaclab.sh --format
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• I have updated the changelog and the corresponding version in the extension's config/extension.toml file
• I have added my name to the CONTRIBUTORS.md or my name already exists there

[greptile-apps]

Greptile Summary

This PR fixes three stale references that had drifted from the single-source-of-truth pyproject.toml: a dead comment in the wheel builder, a hand-rolled regex TOML parser in the daily-compatibility workflow, and outdated pip-installation docs that incorrectly excluded rl_games from the wheel extras.

• build.sh: Comment updated from a reference to the deleted python_packages.toml to an accurate description of the copy step.
• daily-compatibility.yml: The fragile regex TOML parser is replaced with tomllib (stdlib since Python 3.11, guaranteed by the project's >=3.12 constraint), producing byte-identical output with no behavioral change.
• isaaclab_pip_installation.rst: The all extra description and the rl_games note are corrected to reflect the actual generated pyproject.toml — rl_games is included, and users are informed that git must be available at install time.

Confidence Score: 5/5

All three changes are safe to merge: two are comment/doc corrections and the third is a drop-in stdlib replacement with identical runtime output.

The tomllib swap is a clean improvement — it eliminates a fragile multi-line regex, produces byte-identical output, and is backed by stdlib (guaranteed available given the project's Python 3.12 pin). The docs and comment fixes simply align written text with the code that already existed. No logic is altered, no new dependencies are introduced, and no existing behavior changes.

No files require special attention.

Important Files Changed

Filename	Overview
.github/workflows/daily-compatibility.yml	Replaces hand-rolled regex TOML parsing with stdlib tomllib; functionally equivalent and safer for nested/quoted values.
docs/source/setup/installation/isaaclab_pip_installation.rst	Updates the all extra description and corrects the rl_games note to reflect that it is included in the wheel extras via all/rl-games.
tools/wheel_builder/build.sh	Single-line comment fix removing the reference to the long-deleted python_packages.toml.

Flowchart

%%{init: {'theme': 'neutral'}}%%
flowchart TD
    A[pyproject.toml\nsingle source of truth] --> B[tool.isaaclab.versions]
    A --> C[tool.isaaclab extras\nrl-games / all]

    B --> D[daily-compatibility.yml\ntomllib parse]
    D --> E[ovphysx / ovrtx pins\npassed to Docker build]

    C --> F[gen_pyproject.py\nwheel builder]
    F --> G[Generated wheel pyproject.toml\nincludes rl_games in all + rl-games]

    G --> H[isaaclab_pip_installation.rst\nnow accurately documents\nall extra incl. RL-Games]

    I[build.sh comment] -.->|was referencing| J[python_packages.toml\ndeleted file ❌]
    I -->|now describes| K[actual copy step\napps/ + source/ ✅]

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%%{init: {'theme': 'base', 'themeVariables': {"darkMode": true, "background": "#0d1117", "primaryColor": "#21262d", "primaryTextColor": "#e6edf3", "primaryBorderColor": "#8b949e", "lineColor": "#8b949e", "textColor": "#e6edf3", "edgeLabelBackground": "#161b22", "actorBkg": "#21262d", "actorBorder": "#8b949e", "actorTextColor": "#e6edf3", "actorLineColor": "#8b949e", "signalColor": "#8b949e", "signalTextColor": "#e6edf3", "noteBkgColor": "#373320", "noteBorderColor": "#d4a72c", "noteTextColor": "#f0e6c0", "labelBoxBkgColor": "#21262d", "labelBoxBorderColor": "#8b949e", "labelTextColor": "#e6edf3", "loopTextColor": "#e6edf3", "activationBkgColor": "#30363d", "activationBorderColor": "#8b949e"}}}%%
flowchart TD
    A[pyproject.toml\nsingle source of truth] --> B[tool.isaaclab.versions]
    A --> C[tool.isaaclab extras\nrl-games / all]

    B --> D[daily-compatibility.yml\ntomllib parse]
    D --> E[ovphysx / ovrtx pins\npassed to Docker build]

    C --> F[gen_pyproject.py\nwheel builder]
    F --> G[Generated wheel pyproject.toml\nincludes rl_games in all + rl-games]

    G --> H[isaaclab_pip_installation.rst\nnow accurately documents\nall extra incl. RL-Games]

    I[build.sh comment] -.->|was referencing| J[python_packages.toml\ndeleted file ❌]
    I -->|now describes| K[actual copy step\napps/ + source/ ✅]

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