fix(dashboard): point event links at /events/<route>

[harshtandiya]

What changed

The public event page lives at /events/<event_route>, but the dashboard built links to it two different (and both wrong) ways:

• EventRoute.vue — the Event URL field on Event Details pointed at /b/register/<route>.
• eventUrl() — hung the route straight off the origin, so the Event Drawer's Event Page button landed on /<route>.

Both now go through one helper:

• eventUrl(route) → <origin>/events/<route> (also what Copy Link puts on the clipboard).
• eventPath(route) → /events/<route>, used for the anchor's href.
• openEventPage(route) → opens the public page with window.open, a plain navigation rather than one the SPA router (based at /b) could claim. Used by the Event URL arrow link (@click.prevent) and the drawer's Event Page button.

The Event URL field prefix now reads <host>/events/ so the field shows the address it actually is.

Demo

No visual change beyond the field prefix now reading <host>/events/ instead of <host>/; the fix is in where the links go.

Testing

• node --test dashboard/src/utils/eventUrl.test.ts — updated for the new path, plus a case for eventPath. Passing.
• Updated the e2e assertion in e2e/tests/manage-event.spec.ts to expect href="/events/<route>".
• Pre-existing unrelated failures in timeZones.test.ts / timelineTabs.test.ts are untouched by this change.

🤖 Generated with Claude Code

https://claude.ai/code/session_01PdA87qK8nUEBfAxs9cGzjJ

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Generated by Claude Code

[github-actions]

✅ UI Demo Check — skipped via the skip-demo label.

[greptile-apps]

Confidence Score: 5/5

The PR appears safe to merge; the corrected event paths are applied consistently and no actionable regression was identified.

Summary

• Adds shared helpers for absolute URLs, origin-relative paths, and plain new-tab navigation.
• Updates the event drawer and event-route field to use the shared helpers.
• Updates unit and end-to-end expectations for the corrected public path.