* fix(cli): close --on-change command injection via sh -c (P0)
The --on-change flag on `webclaw watch` (single-URL, line 1588) and
`webclaw watch` multi-URL mode (line 1738) previously handed the entire
user-supplied string to `tokio::process::Command::new("sh").arg("-c").arg(cmd)`.
Any path that can influence that string — a malicious config file, an MCP
client driven by an LLM with prompt-injection exposure, an untrusted
environment variable substitution — gets arbitrary shell execution.
The command is now tokenized with `shlex::split` (POSIX-ish quoting rules)
and executed directly via `Command::new(prog).args(args)`. Metacharacters
like `;`, `&&`, `|`, `$()`, `<(...)`, env expansion, and globbing no longer
fire.
An explicit opt-in escape hatch is available for users who genuinely need
a shell pipeline: `WEBCLAW_ALLOW_SHELL=1` preserves the old `sh -c` path
and logs a warning on every invocation so it can't slip in silently.
Both call sites now route through a shared `spawn_on_change()` helper.
Adds `shlex = "1"` to webclaw-cli dependencies.
Version: 0.3.13 -> 0.3.14
CHANGELOG updated.
Surfaced by the 2026-04-16 workspace audit.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
* chore(brand): fix clippy 1.95 unnecessary_sort_by errors
Pre-existing sort_by calls in brand.rs became hard errors under clippy
1.95. Switch to sort_by_key with std::cmp::Reverse. Pure refactor — same
ordering, no behavior change. Bundled here so CI goes green on the P0
command-injection fix.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
