Clean up Key Status section UI

- Remove "Service" word from section headers
- Move average response time next to AI model name (e.g., "OpenAI - 2.01s")
- Remove separate Avg Response metric box to reduce clutter
- Keep only Prompt Tokens and Total Tokens metrics
- Cleaner, more compact layout

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

templates/dashboard.html

@@ -470,7 +470,7 @@
                 <h3>🔑 Key Status <span class="cat-emoji">🗝️</span></h3>
                 {% for service, health in key_health_data.items() %}
                 <div style="margin-bottom: 20px;">
-                    <h4>{{service.title()}} Service</h4>
+                    <h4>{{service.title()}} - {{health.avg_response_time|default('0.00')}}s</h4>
                     <div style="display: flex; gap: 15px; margin-bottom: 10px; flex-wrap: wrap;">
                         <span class="status-good" style="padding: 5px 10px; border-radius: 8px; font-size: 0.9em;">
                             🟢 Healthy: {{health.healthy}}
@@ -499,10 +499,6 @@
                             <div class="metric-value" style="font-size: 1.2em;">{{health.total_tokens|default(0)}}</div>
                             <div class="metric-label" style="font-size: 0.8em;">Total Tokens</div>
                         </div>
-                        <div class="metric status-good" style="padding: 10px; margin: 0; display: inline-block; min-width: 80px;">
-                            <div class="metric-value" style="font-size: 1.2em;">{{health.avg_response_time|default('0.00')}}s</div>
-                            <div class="metric-label" style="font-size: 0.8em;">Avg Response</div>
-                        </div>
                     </div>
                     
                     {% if not health.key_details %}