Generation-Panel zeigt dauerhaft „No models found“ trotz verfügbarer Backend-Modelle

Im Modell-Auswahlmenü des Generation-Panels werden keine Generierungsmodelle angezeigt. Das Suchfeld ist leer, dennoch erscheint ausschließlich „No models found“. Die Backend-Modellliste ist verfügbar und enthält zahlreiche Bild-, Video- und Audiomodelle. Mehrere vollständige App-Neustarts sowie zwischenzeitliche Versionsupdates haben das Problem nicht behoben.

Steps to reproduce
1. Eine Board-Canvas öffnen.
2. Das Generation-Panel am unteren Fensterrand öffnen.
3. Auf „Select model“ klicken.
4. Das leere Suchfeld kontrollieren.
5. Beobachten, dass im Auswahlmenü nur „No models found“ erscheint.
6. App vollständig neu starten beziehungsweise aktualisieren und die Schritte wiederholen.

Expected
Der Modell-Picker sollte die vom Backend gelieferten Generierungsmodelle nach Typ beziehungsweise Provider auflisten und auswählbar machen.

Actual
Der Modell-Picker bleibt leer und zeigt dauerhaft „No models found“, obwohl das Backend Modelle liefert. Neustarts und Versionsupdates ändern das Verhalten nicht.

Error output

No models found

Context
Generation-Panel / Frontend-Modell-Picker; aktuelles Board: Gebaudereinignug_Scheibler. Das Problem wurde anhand eines Screenshots bestätigt. Backend-seitig ist eine umfangreiche Modellliste vorhanden.

Environment
App version: 9.0.0
Platform: Windows 11 (AMD64)

server.log tail

2026-07-26 23:25:51,793 INFO [frontend] Serving built bundle from C:UsersinfoAppDataLocalProgramsGreenLight DashBoardresourcesfrontend-dist
2026-07-26 23:25:52,962 INFO Server startup complete. AI providers registered. Log file=C:UsersinfoAppDataRoaminggreenlight-dashboardlogsserver.log
2026-07-26 23:33:36,159 ERROR [agent-chat] Error
Traceback (most recent call last):
  File "aiohttpclient_reqrep.py", line 558, in start
  File "aiohttpstreams.py", line 705, in read
asyncio.exceptions.CancelledError

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "main.py", line 11259, in agent_chat
  File "main.py", line 10950, in _run_board_helper_agent
  File "agent_platformvibe_service.py", line 411, in call_agent_chat_model
    return await _call_openai_chat(model_id, system_prompt, content, response_format_json=response_format_json)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "agent_platformvibe_service.py", line 187, in _call_openai_chat
    async with session.post("https://api.openai.com/v1/chat/completions", headers=headers, json=payload) as resp:
               ~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "aiohttpclient.py", line 1693, in __aenter__
  File "aiohttpclient.py", line 858, in _request
  File "aiohttpclient.py", line 836, in _connect_and_send_request
  File "aiohttpclient_reqrep.py", line 553, in start
  File "aiohttphelpers.py", line 759, in __exit__
TimeoutError
2026-07-26 23:34:13,827 WARNING [board-agent] Model returned non-JSON response; attempting repair: Model returned an empty response
2026-07-26 23:35:05,332 WARNING [board-agent] Model returned non-JSON response; attempting repair: Model did not return valid JSON
2026-07-26 23:35:09,362 WARNING [board-agent] JSON repair failed; wrapping raw response: Model did not return valid JSON
2026-07-26 23:36:21,340 WARNING [board-agent] Model returned non-JSON response; attempting repair: Model did not return valid JSON
2026-07-26 23:36:24,847 WARNING [board-agent] JSON repair failed; wrapping raw response: Model did not return valid JSON
2026-07-26 23:36:44,289 WARNING [board-agent] Model returned non-JSON response; attempting repair: Model did not return valid JSON
2026-07-26 23:36:48,272 WARNING [board-agent] JSON repair failed; wrapping raw response: Model did not return valid JSON
2026-07-26 23:37:59,938 WARNING [board-agent] Model returned non-JSON response; attempting repair: Model returned an empty response
2026-07-26 23:38:27,653 WARNING [board-agent] Model returned non-JSON response; attempting repair: Model returned an empty response
2026-07-26 23:39:03,068 WARNING [board-agent] Model returned non-JSON response; attempting repair: Model did not return valid JSON
2026-07-26 23:39:46,618 WARNING [board-agent] Model returned non-JSON response; attempting repair: Model returned an empty response
2026-07-30 20:22:29,128 INFO [frontend] Serving built bundle from C:UsersinfoAppDataLocalProgramsGreenLight DashBoardresourcesfrontend-dist
2026-07-30 20:22:29,150 INFO Server startup complete. AI providers registered. Log file=C:UsersinfoAppDataRoaminggreenlight-dashboardlogsserver.log
2026-07-30 20:29:55,714 INFO [frontend] Serving built bundle from C:UsersinfoAppDataLocalProgramsGreenLight DashBoardresourcesfrontend-dist
2026-07-30 20:29:55,741 INFO Server startup complete. AI providers registered. Log file=C:UsersinfoAppDataRoaminggreenlight-dashboardlogsserver.log
2026-07-30 20:45:26,495 WARNING [board-agent] Model returned non-JSON response; attempting repair: Model did not return valid JSON
2026-07-30 20:45:28,975 WARNING [board-agent] JSON repair failed; wrapping raw response: Model did not return valid JSON
2026-07-30 20:47:03,700 INFO [cleanup] Trashed media file: C:UsersinfoAppDataRoaminggreenlight-dashboardmediaadminGebaudereinignug_ScheiblerLogo_Gebaudereiniger_Scheibler_ohne_Hintergrund.ai
2026-08-04 22:21:58,565 INFO [frontend] Serving built bundle from C:UsersinfoAppDataLocalProgramsGreenLight DashBoardresourcesfrontend-dist
2026-08-04 22:21:58,586 INFO Server startup complete. AI providers registered. Log file=C:UsersinfoAppDataRoaminggreenlight-dashboardlogsserver.log
2026-08-04 22:30:09,197 INFO [frontend] Serving built bundle from C:UsersinfoAppDataLocalProgramsGreenLight DashBoardresourcesfrontend-dist
2026-08-04 22:30:09,513 INFO Server startup complete. AI providers registered. Log file=C:UsersinfoAppDataRoaminggreenlight-dashboardlogsserver.log

Response

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