Greptile Summary

This PR fixes a WSL-specific permission issue in scripts/podman/setup.sh by relaxing the temporary image tar directory from chmod 700 to chmod 755, allowing the openclaw user to traverse into the directory and read the tar file during podman image load.

• The change is minimal and well-targeted: one line changed in a single file.
• The security trade-off is acceptable — the directory is short-lived (created and destroyed within the same script run via the cleanup_image_tar EXIT trap at line 257) and holds only a build artifact.
• chmod 755 is consistent with how other temporary directories in the script are handled, as noted in the PR description.

Confidence Score: 5/5

• This PR is safe to merge — it's a minimal, well-justified fix with no functional regressions.
• The change is a single-line permission tweak on an ephemeral temp directory. The rationale is sound (WSL needs execute bits to traverse directories), the directory is cleaned up immediately via an EXIT trap, and the relaxed permissions pose no meaningful security risk for a short-lived build artifact.
• No files require special attention.

_{Reviews (1): Last reviewed commit: "fix(podman): relax image tar directory p..." | Re-trigger Greptile}

CI note: Both failing checks fail on src/plugin-sdk/subpaths.test.ts (MODULE_NOT_FOUND for dist/plugin-sdk/core.js) — same pre-existing issue as other open PRs, unrelated to this podman permission fix.

Closing because this targets the old tar-based Podman setup path, which we no longer use on current main.