Rust-specific rust-ci*.yml workflows are intentionally removed in this fork.

• bazel.yml is the primary Rust verification path for pull requests and for main.
• release.yml remains the post-merge release pipeline for main.

• .github/workflows/** is fork-owned during upstream merges.
• .github/workflows/rust-ci.yml and .github/workflows/rust-ci-full.yml are also listed in .github/merge-policy.json under perma_removed_paths so future upstream syncs keep them deleted.