Opcore 0.2.1

Opcore 0.2.1 is an urgent macOS stability hotfix for Rust validation.

Rust Cargo and native-tool checks previously created a fresh recursive copy of the target repository for every
selected check. On large repositories and concurrent agent runs, that produced a high-volume create/delete event
storm, left large temporary trees behind when processes were interrupted, and could drive macOS fseventsd memory
growth.

This release:

• materializes one Rust workspace per validation file-view state and materialization environment;
• shares that exact staged, tree, or hypothetical after-state across selected Rust checks;
• disposes run-scoped workspaces on normal, fail-fast, streaming, and failed exits;
• retains separate snapshots when Git/tool environments differ; and
• adds regression coverage for bounded materialization, cleanup, resource factory failures, and reverse-order
  disposal.

Install:

npm install --global opcore@0.2.1

Or run without installing:

npx opcore@0.2.1 --version

Full comparison: v0.2.0...v0.2.1