Improve Chat Model component to dynamically fetch models from configured providers
>>> [!note] Migrated issue
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Reported by: [gxleano](https://www.drupal.org/user/3591999)
>>>
<h3 id="summary-problem-motivation">Problem/Motivation</h3>
<p>The Chat Model component currently relies on hardcoded configuration. This prevents the system from dynamically reflecting new or updated models provided by different AI providers. Users cannot access the latest models without manual configuration updates, reducing flexibility and potentially leading to outdated model selection.</p>
<h3 id="summary-proposed-resolution">Proposed resolution</h3>
<p>Update the Chat Model component to fetch available models dynamically from all configured AI providers.</p>
issue