feat: snapshot/resume — serialize interpreter state mid-execution#954
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feat: snapshot/resume — serialize interpreter state mid-execution#954
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Add Bash::snapshot() -> Vec<u8> and Bash::from_snapshot(&[u8]) to capture and restore interpreter state between exec() calls: - Shell state (variables, env, arrays, cwd, aliases, traps, exit code) - VFS contents (files, directories, symlinks via VfsSnapshot) - Session-level counters (commands used, exec calls) Implementation: - New Snapshot struct combining ShellState + VfsSnapshot + counters - JSON serialization for Phase 1 (debuggable, human-readable) - vfs_snapshot()/vfs_restore() on FileSystemExt trait for InMemoryFs, MountableFs, and OverlayFs - JS/TS bindings: snapshot(), restoreSnapshot(), Bash.fromSnapshot() - 10 new tests covering byte roundtrip, arrays, env, cwd, restore-in-place Closes #930
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Summary
Bash::snapshot() -> Vec<u8>andBash::from_snapshot(&[u8])for serializing/restoring interpreter state betweenexec()callssnapshot(),restoreSnapshot(),Bash.fromSnapshot()vfs_snapshot()/vfs_restore()onFileSystemExttrait forInMemoryFs,MountableFs,OverlayFsTest plan
cargo test --test snapshot_tests)cargo build)cargo fmt --checkcleancargo clippy --all-targets --all-features -- -D warningscleanCloses #930