HTMX was never loaded on the page, so hx-get on the component label
spans was dead code — the dialog opened empty. Replace with a plain
openComponentDetail() fetch call. Also fix dialog positioning broken
by the CSS reset (*{margin:0} overrode the UA margin:auto that centers
<dialog>). Replace card hx-trigger polling with a setInterval.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
