[Backport] PR #7389 to release/3.0.0

[isaaclab-bot]

Backports #7389 to release/3.0.0.

The original cherry-pick conflicted. An NVIDIA inference model proposed this resolution, and deterministic validation confirmed that it changes no paths outside the original PR. Because conflict resolution cannot be certified as an exact patch replay, this PR is intentionally a draft and requires release-maintainer review.

Field	Commit
Original merged change	9adf4831384dbe9320de72e9b7809c0d87252b9a
Release base used	355dc9ba107527d7baae7600e89229a89d4e4628
Proposed backport	53b77121e69f2d52fcc842bd791536ce8777e35a

[kellyguo11]

run-ci

[greptile-apps]

Greptile Summary

This backport gates tests that inspect repository-only artifacts behind a shared source-checkout fixture.

• Adds a session-scoped fixture that locates the checkout root and skips affected tests when it is unavailable.
• Updates application, CLI metadata, wheel-builder, teleoperation, and script-ordering tests to obtain repository paths through that fixture.
• Preserves release-specific teleoperation dependency and wheel-console expectations during conflict resolution.

Confidence Score: 5/5

The PR appears safe to merge after the requested release-maintainer review of the conflict resolution.

The fixture is discoverable by every changed test, resolves correctly in supported source-checkout layouts, and intentionally skips only tests whose required repository artifacts are unavailable; no actionable regression remains.

Important Files Changed

Filename	Overview
source/isaaclab/test/conftest.py	Adds the shared checkout-root discovery and skip behavior used by repository-artifact tests.
source/isaaclab/test/cli/test_uv_run_pyproject.py	Routes root project, documentation, lock, and workflow reads through the checkout fixture while preserving release-specific assertions.
source/isaaclab/test/cli/test_wheel_builder_metadata.py	Routes wheel-builder scripts and metadata artifacts through the checkout fixture without changing subprocess semantics.
source/isaaclab/test/cli/test_teleop_entrypoints.py	Uses the fixture for teleoperation script and dependency metadata checks.
source/isaaclab/test/app/test_experience_files.py	Resolves application experience files relative to the discovered source checkout.
source/isaaclab/test/test_scripts_warp_backward_ordering.py	Gates repository script-ordering checks through the shared fixture and applies the unit marker at module scope.

_{Reviews (1): Last reviewed commit: "Gate checkout-only tests with a root fix..." | Re-trigger Greptile}

[isaaclab-review-bot]

Isaac Lab Review Bot

This test-infrastructure backport centralizes source-checkout discovery in a session-scoped source_checkout_root fixture and updates repository-artifact tests to use it. The accompanying .skip changelog fragment appropriately marks the change as non-user-visible.

• Design and architecture: The shared fixture replaces duplicated parent-index and repository-root discovery logic across app, CLI, metadata, wheel-builder, and script-ordering tests. Its placement covers the converted test subdirectories, while skipping when no source checkout exists intentionally supports installed-package test runs.
• API: No public API, CLI option, default, export, or documented behavior changes. install.ISAACLAB_ROOT is patched only within a test, and the changelog treatment follows the repository guidance for test-only changes.
• Implementation: Converted helper signatures and call sites are updated consistently, path construction still targets the checkout root, and the module-level pytestmark preserves the unit marker. One non-blocking tradeoff is that the teleop dispatch test now also detects disagreement between the CLI's configured root and the discovered checkout root, which could fail in a non-editable installation run beside a checkout.

No blocking issues. No inline issue met the actionable-evidence threshold; the assessment above records the review feedback.

Automated review; human maintainers own approval decisions.