Feat/powershell -e encode decode

[Ne0re0]

Description

Adds a new PowerShell -e Encode/Decode.

powershell -e parameter expects the command to be encoded as UTF-16LE + Base64. Those 2 encodings have to be chained manually which is not really fun to set back every time. So this adds encoding/decoding as a single block.

Examples :

• Encode: whoami → dwBoAG8AYQBtAGkA, runnable as powershell -e dwBoAG8AYQBtAGkA.
• Decode: dwBoAG8AYQBtAGkA → whoami.

Existing Issue

N/A

Screenshots

N/A

AI disclosure

This code was written with the assistance of Claude Opus 4.8 (via Claude Code). I have reviewed the code, understand how it works, and take full responsibility for it.

Test Coverage

Test coverage is included in tests/operations/tests/PowerShellEncodeDecode.mjs, covering:

• encoding an empty input,
• encoding a known command (whoami → dwBoAG8AYQBtAGkA),
• decoding that same value back,
• a round-trip (encode → decode) of a more complex command containing spaces and special characters.

All operation tests pass locally (npm test).

[CLAassistant]

All committers have signed the CLA.