Fixes six issues in the shared command resolver (Rust display.rs and
its TS mirror toolIcon.ts), all locked in by shared fixture cases:
- An unescaped newline now ends resolution like `;` does, instead of
being folded in as whitespace; a backslash-newline is a line
continuation, removed entirely rather than embedded or splitting
the word.
- Assignment recognition (`FOO=bar`) now requires the `=` to come from
plain, unquoted/unescaped source text. `"FOO=1"` and `FOO\=1` are
executable words named `FOO=1`, not assignments — quote removal was
losing that provenance.
- `command -v`/`-V` (lookup only, no execution), `env -S` (embeds a
command string) and `npx -c`/`--call` (same) no longer resolve
through to a program they don't actually run. Restricted bash
`time`'s options to `-p`, the only flag the keyword itself parses
(`-o` etc. belong to external GNU time) — this corrects a
previously-wrong fixture case.
- `env`, `sudo` and `command`'s options may now bundle (`env -iv`,
`sudo -nE`) or take an attached value (`sudo -uroot`), the way real
getopt-based tools do, with missing-operand forms safely rejected.
- pnpm/yarn `dlx` and `bun x`/`bunx` now consume their own trailing
options (`--package foo`/`--package=foo`, `--bun`) before the
executable, matching each tool's documented CLI syntax.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
