Direct entry['url'] / entry['label'] would 500 the portal page if a
future helper emits an item dict missing a key. Use .get('url', '#')
and .get('label', '') so a malformed entry degrades silently instead
of taking the page down. Helper data is currently trusted (defined
in _FP_SIDEBAR_LAYOUT class constant) but defensive iteration is
cheap and prevents regression bugs from cascading.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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