fix: let informational xcodebuild commands bypass xcsift

[alexey1312]

Closes #80.

The problem

The pre-tool hooks rewrote every command that starts with xcodebuild, so informational commands went through the build parser, which discarded the answer:

$ xcodebuild -version 2>&1 | xcsift -f toon
hint: build output ended without a success or failure marker (truncated or killed?)
status: incomplete
summary:
  errors: 0
  warnings: 0

The issue lists four commands. xcodebuild -showsdks, -showdestinations and swift build --show-bin-path failed the same way.

The fix belongs in the hook: the hook reads the command, but xcsift reads only the output. A passthrough mode inside xcsift would have to hold the raw input, which contradicts the bounded-memory streaming design from #79 and #81.

Changes

The hook condition is duplicated in three files that must agree — CursorTemplates.hookScript (written by install-cursor), plugins/cursor/hooks/pre-xcsift.sh, and plugins/claude-code/scripts/pre-xcsift.sh (installed by install-claude-code). All three get the same edit:

• Informational commands pass through: -version, -usage, -help, -list, -showsdks, -showdestinations, -showTestPlans, -showBuildSettings(ForIndex), -find-executable, -find-library, -checkFirstLaunchStatus, -create-xcframework, --show-bin-path, --list-tests.
• cd App && xcodebuild build now matches. The old pattern was anchored to the start of the line, so those build logs reached the agent raw.
• The rewrite groups the command as { ... ; } 2>&1 | xcsift -f toon. The old code appended 2>&1 | to the end of the string, so xcodebuild build; swift test sent only the second half to xcsift.
• Commands with their own pipe or file redirection pass through. xcodebuild build > log.txt previously left xcsift with empty input, which exits 64.
• xcodebuild-foo build no longer matches. The old \b matched between d and -.

The Codex skill has no hook support, so SharedTemplates.skillMarkdown and both checked-in SKILL.md copies gain a "When Not to Use" section. PluginInstallation.md documents which commands the hooks rewrite.

The plugin version was 1.0.2 in marketplace.json, 1.0.3 in plugin.json and 1.0.3 in SKILL.md — #60 bumped two of the three. All three now read 1.0.4, so installed plugins load the new script.

Tests

PluginFilesTests runs one table of 17 commands against all three hook copies and parses their real JSON replies, and compares the three version manifests. Running one table across every copy is what keeps them from drifting apart again.

Verified by mutation: removing the informational-command guard from one script fails the test on seven commands and names the file; reverting makes it pass. Reverting marketplace.json to 1.0.2 fails the version test.

swift test: 431 passed, 0 failures. swift format applied.

Result

$ echo '{"tool_input":{"command":"xcodebuild -version"}}' | ./plugins/cursor/hooks/pre-xcsift.sh
{"permission":"allow"}

$ echo '{"tool_input":{"command":"xcodebuild build"}}' | ./plugins/cursor/hooks/pre-xcsift.sh
{"permission":"allow","updated_input":{"command":"{ xcodebuild build ; } 2>&1 | xcsift -f toon"}}