dsh-memory v0.8.2

Fixed

• Distinguish zstd frames from plain JSONL by magic bytes so launchd's minimal PATH no longer causes plain fixtures to be mis-decoded.
• Resolve zstd through DPSK_ZSTD, PATH, and standard Homebrew locations; explicit decoder failures are reported as zstd-unavailable.
• Refresh stale deployed memory helpers idempotently, refuse dirty helpers, and create helper-only refresh commits.
• Deploy the existing redacting template to stale local installations.

Operational notes

• A single session larger than MAX_CANDIDATE_BYTES still rejects the whole batch; per-file skip-and-journal is a follow-up issue.
• Capped recovery batches do not advance .last-sync until the final non-truncated run.
• Distributed through GitHub source installs and GitHub Releases; not published to npm.

Verification

• Full local npm test and GitHub CI passed.
• No real model synchronization was run for this release.