✏️ Editar/reenviar mensagens do usuário

public/app.js

@@ -520,7 +520,16 @@ document.addEventListener('DOMContentLoaded', () => {
           <span>Regenerar</span>
         </button>
       </div>
-    ` : '';
+    ` : `
+      <div class="message-actions">
+        <button class="msg-action-btn btn-edit" title="Editar e reenviar" data-content="${escapeHtml(content).replace(/"/g, '&quot;')}">
+          <svg xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke-width="2" stroke="currentColor">
+            <path stroke-linecap="round" stroke-linejoin="round" d="m16.862 4.487 1.687-1.688a1.875 1.875 0 1 1 2.652 2.652L10.582 16.07a4.5 4.5 0 0 1-1.897 1.13L6 18l.8-2.685a4.5 4.5 0 0 1 1.13-1.897l8.932-8.931Zm0 0L19.5 7.125M18 14v4.75A2.25 2.25 0 0 1 15.75 21H5.25A2.25 2.25 0 0 1 3 18.75V8.25A2.25 2.25 0 0 1 5.25 6H10" />
+          </svg>
+          <span>Editar</span>
+        </button>
+      </div>
+    `;
 
     row.innerHTML = `
       <div class="message-icon">${avatarHtml}</div>
@@ -551,6 +560,48 @@ document.addEventListener('DOMContentLoaded', () => {
       });
     }
 
+    // Event listener para editar/reenviar mensagem
+    const editBtn = row.querySelector('.btn-edit');
+    if (editBtn) {
+      editBtn.addEventListener('click', () => {
+        const text = editBtn.dataset.content;
+        const chat = chats.find(c => c.id === currentChatId);
+        if (!chat) return;
+
+        // Encontrar índice desta mensagem no chat
+        const rows = conversationList.querySelectorAll('.message-row.user');
+        let msgRow = null;
+        for (const r of rows) {
+          const btn = r.querySelector('.btn-edit');
+          if (btn && btn.dataset.content === text) {
+            msgRow = r;
+            break;
+          }
+        }
+
+        // Remover esta mensagem e todas as subsequentes (do user e do bot)
+        if (msgRow) {
+          const allRows = Array.from(conversationList.querySelectorAll('.message-row'));
+          const idx = allRows.indexOf(msgRow);
+          for (let i = allRows.length - 1; i >= idx; i--) {
+            allRows[i].remove();
+          }
+          // Remover do estado também
+          const msgIndex = chat.messages.findIndex(m => m.role === 'user' && m.content === text);
+          if (msgIndex >= 0) {
+            chat.messages = chat.messages.slice(0, msgIndex);
+          }
+          saveChats();
+        }
+
+        // Colocar texto no input e focar
+        userInput.value = text;
+        userInput.focus();
+        userInput.dispatchEvent(new Event('input'));
+        btnSend.disabled = false;
+      });
+    }
+
     // Event listener para regenerar resposta
     const regenBtn = row.querySelector('.btn-regenerate');
     if (regenBtn) {

public/style.css

@@ -1242,6 +1242,19 @@ code {
   transition: transform 0.3s ease;
 }
 
+/* Botão editar */
+.msg-action-btn.btn-edit:hover {
+  color: #8b5cf6 !important;
+}
+
+.msg-action-btn.btn-edit:hover svg {
+  transform: scale(1.1);
+}
+
+.msg-action-btn.btn-edit svg {
+  transition: transform 0.2s ease;
+}
+
 .disclaimer {
   font-size: 11px;
   color: var(--text-muted);