~anthropic/claude-sonnet-latest → A (6:4)

Side A fixes real bugs that were breaking E2E auth tests (wrong str/split arg types, incorrect InputStream/RequestBody API usage, nil state handling, missing error handling causing crashes), restoring test suite functionality. Side B is a UI refactor consolidating multiple cli_panel calls into one, which is a reasonable improvement but is feature polish rather than a correctness fix, and introduces a slightly awkward assert-based safety check instead of proper escaping.