v2.57.2 — hooks run when the plugin path contains a space

Every hook now runs when the plugin is installed in a folder whose path contains a space. The Claude desktop app (3.1623.1) installs plugins under ~/Library/Application Support/Claude/…. Each hook command was bash ${CLAUDE_PLUGIN_ROOT}/scripts/<x>.sh with the path unquoted, so the shell split it at the space and bash exited 127. Claude Code treats that exit as a non-blocking error, so the hook was skipped and the tool call went ahead. Every aria hook stopped running in desktop-app sessions, including the Rule 22 edit gate, which failed open. Terminal installs under ~/.claude/plugins/ have no space and were not affected.

• All 19 Claude Code hook commands quote the root: bash "${CLAUDE_PLUGIN_ROOT}/scripts/<x>.sh".
• Skill instructions quote it too. Claude Code substitutes the root into skill text, so a skill telling the agent to run bash ${CLAUDE_PLUGIN_ROOT}/scripts/x.sh handed it the same broken command. The 21 command-position references are quoted; plain path mentions are unchanged.
• New guard, tests/repros/hook-commands-survive-spaced-plugin-root.sh: runs every hook command from a stub root whose path contains a space, with the variable both exported and substituted into the string, and scans every port's skills for an unquoted root after bash, sh, . or source. It failed on all 27 hook commands and 56 skill references before the fix.
• Ports: Codex (2.57.2-codex.0) quotes its 8 hook commands and 14 skill references. Antigravity (2.57.2) is regenerated, and its two hand-written overlays are quoted. Its hooks use relative paths and were not affected. Cursor stays at 2.57.1-cursor.0 (relative paths, no defect) and Cowork stays at 1.8.1.