refactor: enhance chat components with type safety and response functionality

- Updated type definitions in ChatWindow and MessageList components for better type safety.
- Improved MessageInput to handle message responses, including a preview feature for replying to messages.
- Enhanced the chat message handling logic to support message references and improve user interaction.
- Refactored notification utility functions to support push notifications and rate limiting for email sending.
- Updated backend schema to accommodate new features related to message responses and notifications.

packages/backend/convex/actions/utils/nodeCrypto.ts

@@ -0,0 +1,72 @@
+/**
+ * Utilitários de criptografia compatíveis com Node.js
+ * Para uso em actions que rodam em ambiente Node.js
+ */
+
+/**
+ * Descriptografa senha SMTP usando Web Crypto API compatível com Node.js
+ * Esta versão funciona em ambiente Node.js (actions)
+ */
+export async function decryptSMTPPasswordNode(encryptedPassword: string): Promise<string> {
+  try {
+    // Em Node.js, crypto.subtle está disponível globalmente
+    const crypto = globalThis.crypto;
+    
+    if (!crypto || !crypto.subtle) {
+      throw new Error("Web Crypto API não disponível");
+    }
+
+    // Chave base - mesma usada em auth/utils.ts
+    const keyMaterial = new TextEncoder().encode("SGSE-EMAIL-ENCRYPTION-KEY-2024");
+    
+    // Importar chave material
+    const keyMaterialKey = await crypto.subtle.importKey(
+      "raw",
+      keyMaterial,
+      { name: "PBKDF2" },
+      false,
+      ["deriveBits", "deriveKey"]
+    );
+
+    // Derivar chave de 256 bits usando PBKDF2
+    const key = await crypto.subtle.deriveKey(
+      {
+        name: "PBKDF2",
+        salt: new TextEncoder().encode("SGSE-SALT"),
+        iterations: 100000,
+        hash: "SHA-256",
+      },
+      keyMaterialKey,
+      { name: "AES-GCM", length: 256 },
+      false,
+      ["encrypt", "decrypt"]
+    );
+    
+    // Decodificar base64 manualmente (compatível com Node.js e browser)
+    const binaryString = atob(encryptedPassword);
+    const combined = Uint8Array.from(binaryString, (c) => c.charCodeAt(0));
+
+    // Extrair IV e dados criptografados
+    const iv = combined.slice(0, 12);
+    const encrypted = combined.slice(12);
+
+    // Descriptografar
+    const decrypted = await crypto.subtle.decrypt(
+      {
+        name: "AES-GCM",
+        iv: iv,
+      },
+      key,
+      encrypted
+    );
+
+    // Converter para string
+    const decoder = new TextDecoder();
+    return decoder.decode(decrypted);
+  } catch (error) {
+    const errorMessage = error instanceof Error ? error.message : String(error);
+    console.error("Erro ao descriptografar senha SMTP (Node.js):", errorMessage);
+    throw new Error(`Falha ao descriptografar senha SMTP: ${errorMessage}`);
+  }
+}
+