docs: name the correct release tool in CLAUDE.md

[Herm71]

Why

The Release & Packaging section of CLAUDE.md said npm run release bumps the version via standard-version. It doesn't — package.json defines the script as commit-and-tag-version and carries that package as the devDependency:

"scripts":         { "release": "commit-and-tag-version" },
"devDependencies": { "commit-and-tag-version": "^12.0.0" }

standard-version was deprecated and commit-and-tag-version is its maintained fork, so the name was likely accurate once and went stale across the switch. Harmless until someone tries to look up the tool's configuration or CLI flags — the two projects' docs have diverged enough by now to send you the wrong way.

Noticed while rewriting the README in #29, which names the tool correctly. This removes the disagreement between the two files.

What changed

One line in CLAUDE.md. No code, no behavior change.

-npm run release    # Bump version via standard-version (updates plugin.php header + CHANGELOG.md)
+npm run release    # Bump version via commit-and-tag-version (updates plugin.php header + CHANGELOG.md)

Verification

• Confirmed against package.json — the release script and the devDependency both read commit-and-tag-version
• grep -i 'standard-version' across the repo returns nothing further; this was the only stale reference
• The surrounding npm run dryrun and npm run zip lines in that block are accurate and untouched

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