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slyfox

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What this fixes

The Buddy mirror / AI emotions sub-tab buttons silently did nothing after PR #7 merged.

Root cause

In highlightCode(), the lookbehind regex was written into the HTML as (?<![a-zA-Z_])(\d+). The < got HTML-escaped to < and ended up inside the JS regex literal. When the browser parses the script, the JS engine sees (?<!...) inside the regex source, treats it as invalid, and throws a SyntaxError on script parse.

A parse-time SyntaxError kills the entire <script> block. None of it ever runs. That includes the line that registers the subtab click handler:

$("subtabs").querySelectorAll("button").forEach(b => b.addEventListener("click", () => setTab(b.dataset.tab)));

So clicks did nothing.

Fix

One-character change in mirror.html:

- .replace(/(?&lt;![a-zA-Z_])(\d+)\b/g, '<span class="n">$1</span>');
+ .replace(/(?<![a-zA-Z_])(\d+)\b/g, '<span class="n">$1</span>');

Verified the script now parses cleanly. The remaining </> occurrences in the file are only inside the escapeHtml() mapping table where they belong as the actual entity strings.

Why a new PR

The fix was pushed to refs/pr/7 after PR #7 was merged, so it never reached main. This PR re-applies it on top of current main (92cd143c).