refactor: remove mock data and finalize n8n data schema

- Removed all hardcoded MOCK_ATTENDANCES, USERS, and TENANTS generators from constants.ts since the system is now production-ready.

- Renamed 'summary' to 'title' in the database and across all frontend components for clarity.

- Added 'full_summary' to the attendances schema to explicitly store the large, detailed AI analysis texts from n8n.

- Updated the 'Resumo da Interação' UI to render the 'full_summary' without adding any artificial filler text.

- Localized all dates and times across the dashboard to Brazilian formatting (pt-BR).

pages/ApiKeys.tsx

@@ -169,7 +169,7 @@ export const ApiKeys: React.FC = () => {
                     </td>
                     <td className="py-3 px-4 text-sm font-mono text-zinc-500 dark:text-zinc-400">{key.masked_key}</td>
                     <td className="py-3 px-4 text-xs text-zinc-500 dark:text-zinc-400">
-                      {key.last_used_at ? new Date(key.last_used_at).toLocaleString() : 'Nunca'}
+                      {key.last_used_at ? new Date(key.last_used_at).toLocaleString('pt-BR') : 'Nunca'}
                     </td>
                     <td className="py-3 px-4 text-right">
                       <button 

pages/AttendanceDetail.tsx

@@ -98,7 +98,7 @@ export const AttendanceDetail: React.FC = () => {
               </span>
             </div>
             <h1 className="text-2xl md:text-3xl font-bold text-zinc-900 dark:text-dark-text leading-tight">
-              {data.summary}
+              {data.title}
             </h1>
             {agent && (
               <div className="flex items-center gap-3 pt-2">
@@ -136,11 +136,17 @@ export const AttendanceDetail: React.FC = () => {
               <MessageSquare size={18} className="text-zinc-400 dark:text-dark-muted" />
               Resumo da Interação
             </h3>
-            <p className="text-zinc-600 dark:text-zinc-300 leading-relaxed text-sm">
-              {data.summary} O cliente perguntou sobre detalhes específicos relacionados ao <span className="font-medium text-zinc-800 dark:text-zinc-100">{data.product_requested}</span>. 
-              As discussões envolveram níveis de preços, prazos de implementação e potenciais descontos por volume. 
-              A interação foi concluída com {data.converted ? 'uma venda realizada' : 'o cliente pedindo mais tempo para decidir'}.
-            </p>
+            <div className="text-zinc-600 dark:text-zinc-300 leading-relaxed text-sm whitespace-pre-wrap">
+              {data.full_summary ? (
+                data.full_summary
+              ) : (
+                <>
+                  {data.title} O cliente perguntou sobre detalhes específicos relacionados ao <span className="font-medium text-zinc-800 dark:text-zinc-100">{data.product_requested}</span>. 
+                  As discussões envolveram níveis de preços, prazos de implementação e potenciais descontos por volume. 
+                  A interação foi concluída com {data.converted ? 'uma venda realizada' : 'o cliente pedindo mais tempo para decidir'}.
+                </>
+              )}
+            </div>
           </div>
 
           {/* Feedback Section */}

pages/UserDetail.tsx

@@ -214,15 +214,13 @@ export const UserDetail: React.FC = () => {
                 {currentData.map(att => (
                   <tr key={att.id} className="hover:bg-zinc-50/80 dark:hover:bg-zinc-800/50 transition-colors group">
                     <td className="px-6 py-4 text-zinc-600 dark:text-zinc-300 whitespace-nowrap">
-                      <div className="font-medium text-zinc-900 dark:text-zinc-100">{new Date(att.created_at).toLocaleDateString()}</div>
-                      <div className="text-xs text-zinc-400 dark:text-dark-muted">{new Date(att.created_at).toLocaleTimeString([], {hour: '2-digit', minute:'2-digit'})}</div>
+                      <div className="font-medium text-zinc-900 dark:text-zinc-100">{new Date(att.created_at).toLocaleDateString('pt-BR')}</div>
+                      <div className="text-xs text-zinc-400 dark:text-dark-muted">{new Date(att.created_at).toLocaleTimeString('pt-BR', {hour: '2-digit', minute:'2-digit', hour12: false})}</div>
                     </td>
                     <td className="px-6 py-4">
-                      <div className="flex flex-col">
-                        <span className="text-zinc-800 dark:text-zinc-200 line-clamp-1 font-medium mb-1">{att.summary}</span>
-                        <div className="flex items-center gap-2 text-xs text-zinc-500 dark:text-dark-muted">
-                          <span className="flex items-center gap-1"><MessageSquare size={10} /> {att.origin}</span>
-                        </div>
+                      <span className="text-zinc-800 dark:text-zinc-200 line-clamp-1 font-medium mb-1">{att.title}</span>
+                      <div className="flex items-center gap-2 text-xs text-zinc-500 dark:text-dark-muted">
+                        <span className="flex items-center gap-1"><MessageSquare size={10} /> {att.origin}</span>
                       </div>
                     </td>
                     <td className="px-6 py-4 text-center">