When navigating within the iframe (e.g. meeting list → meeting detail),
the UUID is only present on the initial iframe src URL — internal SvelteKit
<a href> links don't carry it forward. The layout effect was unconditionally
clearing novi_verified on every navigation that lacked a UUID, causing
"Access Denied" on every internal link click.
Fix: if a valid TTL-cached Novi session exists when no UUID is in the URL,
treat it as internal navigation and preserve the session rather than wiping it.
Non-Novi paths (no session, no UUID) still clear and deny as before.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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