Remove backend selection from admin config AI Settings

- Remove analysis_backend and training_backend fields from /admin/config
- These are now configured per worker in the cluster nodes interface
- Clean up unused imports and form processing

templates/admin/config.html

@@ -127,24 +127,6 @@
 
     <div class="config-section">
         <h2 class="section-title">AI Settings</h2>
-        <div class="form-row">
-            <div class="form-group">
-                <label for="analysis_backend">Analysis Backend</label>
-                <select id="analysis_backend" name="analysis_backend">
-                    <option value="cuda" {% if current_config.get('analysis_backend') == 'cuda' %}selected{% endif %}>CUDA</option>
-                    <option value="rocm" {% if current_config.get('analysis_backend') == 'rocm' %}selected{% endif %}>ROCm</option>
-                    <option value="cpu" {% if current_config.get('analysis_backend') == 'cpu' %}selected{% endif %}>CPU</option>
-                </select>
-            </div>
-            <div class="form-group">
-                <label for="training_backend">Training Backend</label>
-                <select id="training_backend" name="training_backend">
-                    <option value="cuda" {% if current_config.get('training_backend') == 'cuda' %}selected{% endif %}>CUDA</option>
-                    <option value="rocm" {% if current_config.get('training_backend') == 'rocm' %}selected{% endif %}>ROCm</option>
-                    <option value="cpu" {% if current_config.get('training_backend') == 'cpu' %}selected{% endif %}>CPU</option>
-                </select>
-            </div>
-        </div>
         <div class="form-row">
             <div class="form-group">
                 <label for="default_model">Default Model</label>

vidai/admin.py

@@ -288,7 +288,7 @@ def config():
             set_stripe_keys, set_paypal_credentials, set_crypto_addresses,
             set_base_url, set_db_type, set_db_sqlite_path, set_db_mysql_config,
             set_web_host, set_web_port, set_backend_host, set_backend_web_port, set_backend_worker_port,
-            set_analysis_backend, set_training_backend, set_default_model, set_default_model_type,
+            set_default_model, set_default_model_type,
             set_frame_interval, set_optimize, set_ffmpeg, set_flash, set_runpod_enabled,
             set_runpod_api_key, set_runpod_template_id, set_runpod_gpu_type, set_use_runpod_pods,
             set_host, set_port, set_debug, set_allowed_dir, set_comm_type, set_max_concurrent_jobs,
@@ -341,12 +341,6 @@ def config():
         base_url = request.form.get('base_url', 'http://localhost:5000')
         set_base_url(base_url)
 
-        # AI Settings
-        analysis_backend = request.form.get('analysis_backend', 'cuda')
-        set_analysis_backend(analysis_backend)
-
-        training_backend = request.form.get('training_backend', 'cuda')
-        set_training_backend(training_backend)
 
         default_model = request.form.get('default_model', 'Qwen/Qwen2.5-VL-7B-Instruct')
         set_default_model(default_model)