- Updated the bun-install action to retry `bun install --frozen-lockfile` when the first attempt fails.
- Added a fallback path that creates a temporary job-local cache directory and reruns install with `--cache-dir`.
- Emitted a warning to note the shared-store failure before the retry path is used.
- Updated bun-install action to set mounted cache mode and use PVC cache paths.
- Removed RustFS Bun restore/save and maintenance scripts, replacing them with mounted cache setup.
- Removed zstd from runner image installation and baked-tool verification checks.
- Updated infra docs to describe split caching with RustFS for sccache and PVC for Bun/Cargo.
The backend-detection shell block in .github/actions/bun-install/action.yml was missing its closing fi, so every job that touched the composite failed immediately with . Restore the RustFS/GHA branch correctly and validate with YAML parse + bash -n.
- Updated the bun-install composite action to detect preinstalled Bun and only fetch it when missing.
- Added cache-backend detection and wiring so Bun dependencies use RustFS cache when SCCACHE credentials are present.
- Conditionally skipped rust-cache in build-native and CI jobs when shared sccache runners are available, relying on the existing RustFS/sccache layer instead.
- Added beforeEach and afterEach hooks in mnemopi tests to set and clear MNEMOPI_NO_EMBEDDINGS so embeddings are skipped during those runs.
- Updated the bun-install cache script to archive only node_modules paths that exist as directories.
- Updated CI dependency install flow to share bun cache orchestration across jobs.
- Added RustFS-backed bun cache restore/save script keyed by bun.lock hash.
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