Remove macOS download quarantine/provenance attributes from the packaged node-pty runtime cache before loading the native module. Existing matching caches are repaired before require, and read-only helper permissions are restored after cleanup.\n\nTested: bun test desktop/electron/services/terminal.test.ts\nTested: cd desktop && bun run build:electron\nTested: git diff --check\nTested: prepared the installed 0.4.3 node-pty cache and required it with Electron's Node runtime\nScope-risk: narrow\nConfidence: high