feat: update all OpenAI/ChatGPT refs + settings dropdown for fixed-value fields

Co-authored-by: christianlouis <361235+christianlouis@users.noreply.github.com>

frontend/templates/about.html

@@ -18,7 +18,8 @@
       for everyone, whether you're a small startup or a large enterprise.
     </p>
     <p class="text-gray-600">
-      We harness the power of OpenAI for metadata extraction and text refinement, integrate seamlessly
+      We harness the power of pluggable AI providers (OpenAI, Anthropic Claude, Google Gemini, Ollama,
+      OpenRouter, Portkey, and more) for metadata extraction and text refinement, integrate seamlessly
       with Dropbox, Nextcloud, and Paperless NGX for storage and indexing, leverage Azure Document
       Intelligence for OCR, and even use Gotenberg for file-to-PDF conversions.
     </p>
@@ -33,7 +34,7 @@
         <ul class="list-disc list-inside text-gray-600 ml-2">
           <li>Simple and secure file uploads with drag & drop support</li>
           <li>OCR powered by Azure Document Intelligence</li>
-          <li>Automated metadata extraction using OpenAI</li>
+          <li>Automated metadata extraction using a pluggable AI provider</li>
           <li>PDF conversion for various file formats via Gotenberg</li>
           <li>Intelligent document classification and date extraction</li>
         </ul>

frontend/templates/settings.html

@@ -139,8 +139,21 @@
                   Enable {{ setting.key.replace('_', ' ').title() }}
                 </label>
               </div>
+              {% elif setting.metadata.options %}
+              <!-- Dropdown Select for fields with a fixed list of values -->
+              <select
+                id="{{ setting.key }}"
+                name="{{ setting.key }}"
+                x-model="formData['{{ setting.key }}']"
+                class="setting-input w-full px-3 py-2 border border-gray-300 rounded-md shadow-sm focus:outline-none focus:ring-blue-500 focus:border-blue-500"
+              >
+                <option value="">— select —</option>
+                {% for opt in setting.metadata.options %}
+                <option value="{{ opt }}">{{ opt }}</option>
+                {% endfor %}
+              </select>
               {% else %}
-              <!-- Text Input -->
+              <!-- Text / Password Input -->
               <div class="relative">
                 {% if setting.metadata.sensitive %}
                 <!-- Sensitive Field with Show/Hide Toggle -->

frontend/templates/setup_wizard.html

@@ -92,7 +92,7 @@
           <div class="border-b border-gray-200 pb-6 last:border-b-0">
             <label for="{{ setting.key }}" class="block text-sm font-medium text-gray-900 mb-1">
               {{ setting.label }}
-              {% if setting.default is none or setting.key in ['admin_password', 'openai_api_key', 'azure_ai_key', 'azure_endpoint'] %}
+              {% if setting.default is none or setting.key in ['admin_password'] %}
               <span class="text-red-600">*</span>
               {% endif %}
             </label>
@@ -129,7 +129,18 @@
               />
             </div>
             {% else %}
-            <!-- Regular input -->
+            <!-- Regular input or select -->
+            {% if setting.options %}
+            <select
+              id="{{ setting.key }}"
+              name="{{ setting.key }}"
+              class="wizard-input w-full px-4 py-3 border border-gray-300 rounded-md shadow-sm focus:outline-none focus:ring-2 focus:ring-indigo-500 focus:border-transparent"
+            >
+              {% for opt in setting.options %}
+              <option value="{{ opt }}" {% if setting.current_value == opt %}selected{% elif not setting.current_value and opt == setting.default %}selected{% endif %}>{{ opt }}</option>
+              {% endfor %}
+            </select>
+            {% else %}
             <input
               type="{% if setting.sensitive %}password{% else %}text{% endif %}"
               id="{{ setting.key }}"
@@ -137,9 +148,10 @@
               value="{{ setting.current_value if setting.current_value else '' }}"
               class="wizard-input w-full px-4 py-3 border border-gray-300 rounded-md shadow-sm focus:outline-none focus:ring-2 focus:ring-indigo-500 focus:border-transparent"
               placeholder="{{ setting.description }}"
-              {% if setting.default is none or setting.key in ['admin_password', 'openai_api_key', 'azure_ai_key', 'azure_endpoint'] %}required{% endif %}
+              {% if setting.default is none or setting.key in ['admin_password'] %}required{% endif %}
             />
             {% endif %}
+            {% endif %}
 
             {% if setting.value_source == 'db' %}
             <span class="inline-flex items-center px-2 py-0.5 rounded text-xs font-medium bg-green-100 text-green-800 mt-1">DB</span>

frontend/templates/status_dashboard.html

@@ -174,11 +174,11 @@
                       Configure Now
                     </a>
                   {% endif %}
-                {% elif name == "OpenAI" %}
+                {% elif name == "AI Provider" %}
                   {% if provider.configured %}
                     <button
                       class="test-provider-btn inline-flex items-center px-2.5 py-1.5 border border-gray-300 text-xs font-medium rounded text-gray-700 bg-white hover:bg-gray-50 focus:outline-none focus:ring-2 focus:ring-offset-2 focus:ring-indigo-500"
-                      data-provider="openai">
+                      data-provider="ai_provider">
                       Test Connection
                     </button>
                   {% endif %}
@@ -521,8 +521,8 @@ document.addEventListener('DOMContentLoaded', function() {
         endpoint = '/api/onedrive/test-token';
       } else if (provider === 'google_drive') {
         endpoint = '/api/google-drive/test-token';
-      } else if (provider === 'openai') {
-        endpoint = '/api/openai/test';
+      } else if (provider === 'ai_provider') {
+        endpoint = '/api/ai/test';
       } else if (provider === 'azure') {
         endpoint = '/api/azure/test';
       }