Fix Veranstaltung dropdown appearing empty on form load

[Copilot]

The Veranstaltung dropdown in the Ausschreibung creation form showed no options. useAsyncState was fetching data but the component didn't track or surface loading, error, or empty states.

Changes

• Track async state: Destructure isReady and error from useAsyncState
• Dynamic placeholder: Show "Lade Veranstaltungen..." while fetching, "Veranstaltung auswählen" when ready
• Error handling: Display user-friendly message on API failure, log technical details to console
• Empty state: Show guidance message when no veranstaltungen exist
• Semantic fix: Changed placeholder from "Veranstaltungsort" (location) to "Veranstaltung auswählen" (select event)

Before:

const { state: veranstaltungen } = useAsyncState(...)

After:

const { state: veranstaltungen, isReady: veranstaltungenReady, error: errorVeranstaltungen } = useAsyncState(...)

watch(errorVeranstaltungen, (error) => {
  if (error) console.error('Error loading veranstaltungen:', error)
})

Template now conditionally renders error/empty state messages based on isReady and error flags.

Warning

Firewall rules blocked me from connecting to one or more addresses (expand for details)

I tried to connect to the following addresses, but was blocked by firewall rules:

• checkpoint.prisma.io
  • Triggering command: /opt/hostedtoolcache/node/24.13.0/x64/bin/node /opt/hostedtoolcache/node/24.13.0/x64/bin/node /home/REDACTED/work/brahmsee.digital/brahmsee.digital/node_modules/.pnpm/prisma@5.22.0/node_modules/prisma/build/child {"product":"prisma","version":"5.22.0","cli_install_type":"local","information":"","local_timestamp":"2026-02-12T21:25:10Z","project_hash":"b6c57c18","cli_path":"/home/REDACTED/work/brahmsee.digital/brahmsee.digital/apps/api/node_modules/prisma/build/index. (dns block)

If you need me to access, download, or install something from one of these locations, you can either:

• Configure Actions setup steps to set up my environment, which run before the firewall is enabled
• Add the appropriate URLs or hosts to the custom allowlist in this repository's Copilot coding agent settings (admins only)

Original prompt

---

This section details on the original issue you should resolve

<issue_title>Veranstaltung nicht auswählbar, DRINGEND</issue_title>
<issue_description>### Kurzbeschreibung

No response

Beschreibung

Wenn ich als Gliederungsadmin eine Veranstaltung ertellen möchte (mehr kann ich ja erst mal auch nicht tun), so ist im Pflichtfeld Veranstaltung nichts auswählbar.

</issue_description>

Comments on the Issue (you are @copilot in this section)

• Fixes Veranstaltung nicht auswählbar, DRINGEND #415

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