diff --git a/Dockerfile b/Dockerfile
index 30d392f..5ecf721 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -26,7 +26,9 @@ RUN npm ci --omit=dev
 # Copy backend source directly into root
 COPY backend/index.js ./index.js
 COPY backend/db.js ./db.js
+COPY backend/config ./config
 COPY backend/policies ./policies
+COPY backend/services ./services
 COPY backend/utils ./utils
 
 # Copy built frontend
diff --git a/GEMINI.md b/GEMINI.md
deleted file mode 100644
index af37a0c..0000000
--- a/GEMINI.md
+++ /dev/null
@@ -1,88 +0,0 @@
-# Fasto Project Documentation
-
-## Overview
-Fasto is a commercial team management system built with React (Vite) on the frontend and Node.js (Express) on the backend. It uses a MySQL database. It features a complete multi-tenant architecture designed to securely host multiple client organizations within a single deployment.
-
-## 🚀 Recent Major Changes (March 2026)
-We have transitioned from a mock-based prototype to a **secure, multi-tenant production architecture**:
-
-- **Multi-Tenancy & Data Isolation:** All backend routes (Users, Teams, Attendances) now strictly enforce `tenant_id` checks. It is technically impossible for one organization to query data from another.
-- **Advanced 2-Token Authentication (Rolling Sessions):**
-  - Replaced the vulnerable 1-year static JWT with a highly secure dual-token system.
-  - Generates a short-lived `AccessToken` (15 min) and a stateful `RefreshToken` (30 days) stored in the DB (`refresh_tokens` table).
-  - Built an Axios-like `apiFetch` interceptor on the frontend that automatically catches 401 Unauthorized errors, fetches a new Access Token in the background, extends the Refresh Token by another 30 days (Sliding Expiration), and retries the original request without logging the user out.
-  - Full remote revocation capability (Logout drops the token from the DB immediately).
-- **God Mode (Tenant Impersonation):** Super Admins can securely impersonate Tenant Admins via a specialized, temporary JWT (`/api/impersonate/:tenantId`). This allows seamless cross-domain support without storing passwords.
-- **Role-Based Access Control (RBAC) Simplification:**
-  - Removed the redundant 'owner' role. The system now strictly relies on 4 tiers:
-  - **Super Admin:** Global management of all tenants and API keys (via the hidden `system` tenant).
-  - **Admin:** Full control over members, teams, funnels, and origins within their specific organization.
-  - **Manager:** Mid-level control. Can edit basic info of users in their specific team, but cannot change user roles or re-assign users to different teams (only Admins can).
-  - **Agent:** Restricted access. Can only view their own performance metrics and historical attendances.
-- **Dynamic Funnel & Origin Managers:** 
-  - Funnel stages and Lead Origins are no longer hardcoded ENUMs. Each tenant can create multiple dynamic funnel/origin groups via relational tables (`funnels`, `funnel_stages`, `origin_groups`, `origin_items`).
-  - Admins can customize the exact Tailwind color class (e.g., "bg-green-100") for each stage and origin via visual UI pickers.
-  - Admins assign specific Teams to specific Funnels/Origin Groups.
-  - The Dashboard pie charts and data tables strictly filter and color-code data based on the active team's configuration. Deleted data falls back to an "Outros" category to prevent chart breakage.
-- **n8n / External API Webhooks (Completed):** 
-  - Super Admins can generate persistent `api_keys` for specific tenants.
-  - `GET /api/integration/users`, `/funnels`, and `/origins` allow the n8n AI to dynamically map the tenant's actual agents and workflow stages before processing a chat.
-  - `POST /api/integration/attendances` accepts the AI's final JSON payload (including the `full_summary` text) and injects it directly into the dashboard.
-- **Real-Time Notification System:** 
-  - Built a persistent notification tray (`/api/notifications`) with real-time polling (10s intervals) and a hidden HTML5 `<audio>` player for cross-browser sound playback (custom `.mp3` loaded via Vite).
-  - Automated Triggers: Super Admins are notified of new organizations; Admins/Super Admins are notified of new user setups; Agents are notified of team assignment changes; Managers get "Venda Fechada" alerts when n8n posts a converted lead.
-- **Enhanced UI/UX:** 
-  - Premium "Onyx & Gold" True Black dark mode (Zinc scale).
-  - Fully collapsible interactive sidebar with memory (`localStorage`).
-  - All Date/Time displays localized to strict Brazilian formatting (`pt-BR`, 24h, `DD/MM/YY`).
-
-## 📌 Roadmap / To-Do
-- [ ] **Advanced AI Notification Triggers:** Implement backend logic to automatically notify Managers when an attendance payload from n8n receives a critically low quality score (`score < 50`), or breaches a specific Response Time SLA (e.g., `first_response_time_min > 60`).
-- [ ] **Data Export/Reporting:** Allow Admins to export attendance and KPI data to CSV/Excel.
-- [ ] **Billing/Subscription Management:** Integrate a payment gateway (e.g., Stripe/Asaas) to manage tenant trial periods and active statuses dynamically.
-
-## 🛠 Architecture
-- **Frontend**: React 19, TypeScript, Vite, TailwindCSS (CDN), Recharts, Lucide React.
-- **Backend**: Node.js, Express, MySQL2 (Pool-based), Nodemailer.
-- **Database**: MySQL 8.0 (Schema: `fasto_db` or `agenciac_comia` depending on `.env`).
-- **Deployment**: Docker Compose for local development; Gitea Actions for CI/CD pushing to a Gitea Registry and deploying via Portainer webhook.
-
-## 📋 Prerequisites
-- Docker & Docker Compose
-- Node.js (for local development outside Docker)
-
-## ⚙️ Setup & Running
-
-### 1. Environment Variables
-Copy `.env.example` to `.env` and adjust values:
-```bash
-cp .env.example .env
-```
-*Note:* The backend automatically strips literal quotes from Docker `.env` string values (like `SMTP_PASS`) to prevent authentication crashes.
-
-### 2. Database
-The project expects a MySQL database. The Node.js backend automatically runs non-destructive schema migrations on startup (adding tables like `refresh_tokens`, `api_keys`, `origin_groups`, etc.).
-
-### 3. Running Locally (Docker Compose)
-To start the application and database locally:
-```bash
-docker-compose -f docker-compose.local.yml up -d --build
-```
-- **App**: http://localhost:3001
-- **Database**: Port 3306
-
-### 4. Gitea Runner
-The `docker-compose.yml` includes a service for a Gitea Runner (`fasto-runner`).
-- Persistent data is in `./fasto_runner/data`.
-
-## 🔄 CI/CD Pipeline
-The project uses Gitea Actions defined in `.gitea/workflows/build-deploy.yaml`.
-- **Triggers**: Push to `main` or `master`.
-- **Steps**:
-    1. Checkout code.
-    2. Build Docker image.
-    3. Push to `gitea.blyzer.com.br`.
-    4. Trigger Portainer webhook.
-
-## 💻 Development
-The Dockerfile uses a unified root structure. Both the frontend build and the backend Node.js server are hosted from the same container image.
diff --git a/backend/config/cors.js b/backend/config/cors.js
new file mode 100644
index 0000000..6522ebd
--- /dev/null
+++ b/backend/config/cors.js
@@ -0,0 +1,13 @@
+const cors = require('cors');
+
+const createCorsMiddleware = ({ allowedOrigins, isProduction }) => cors({
+  origin: (origin, callback) => {
+    if (!origin || !isProduction || allowedOrigins.includes(origin)) {
+      return callback(null, true);
+    }
+    return callback(new Error('Origem não permitida pelo CORS.'));
+  },
+  credentials: true
+});
+
+module.exports = { createCorsMiddleware };
diff --git a/backend/config/runtime.js b/backend/config/runtime.js
new file mode 100644
index 0000000..15397d7
--- /dev/null
+++ b/backend/config/runtime.js
@@ -0,0 +1,50 @@
+const { stripEnvQuotes } = require('../utils/security');
+
+const isProduction = process.env.NODE_ENV === 'production';
+const port = process.env.PORT || 3001;
+const jwtSecret = process.env.JWT_SECRET || (isProduction ? null : 'fasto_dev_secret_change_me');
+
+if (!jwtSecret) {
+  throw new Error('JWT_SECRET is required in production.');
+}
+
+const allowedOrigins = (process.env.CORS_ORIGIN || '')
+  .split(',')
+  .map(origin => origin.trim())
+  .filter(Boolean);
+
+const smtp = {
+  host: process.env.SMTP_HOST || 'mail.blyzer.com.br',
+  port: parseInt(process.env.SMTP_PORT, 10) || 587,
+  user: stripEnvQuotes(process.env.SMTP_USER || 'nao-responda@blyzer.com.br'),
+  pass: stripEnvQuotes(process.env.SMTP_PASS || ''),
+  debug: process.env.SMTP_DEBUG === 'true',
+};
+
+const getBaseUrl = (req) => {
+  if (process.env.APP_URL) return process.env.APP_URL;
+
+  const host = req ? (req.get('host') || 'localhost:3001') : 'localhost:3001';
+  const protocol = (req && (req.protocol === 'https' || req.get('x-forwarded-proto') === 'https')) ? 'https' : 'http';
+
+  if (isProduction && !host.includes('localhost')) {
+    return `https://${host}`;
+  }
+  return `${protocol}://${host}`;
+};
+
+const getStartupBaseUrl = () => {
+  if (process.env.APP_URL) return process.env.APP_URL;
+  if (isProduction) return 'https://fasto.blyzer.com.br';
+  return 'http://localhost:3001';
+};
+
+module.exports = {
+  allowedOrigins,
+  getBaseUrl,
+  getStartupBaseUrl,
+  isProduction,
+  jwtSecret,
+  port,
+  smtp,
+};
diff --git a/backend/index.js b/backend/index.js
index 12fddf1..65aaf30 100644
--- a/backend/index.js
+++ b/backend/index.js
@@ -1,16 +1,17 @@
 require('dotenv').config();
 const express = require('express');
-const cors = require('cors');
 const path = require('path');
 const bcrypt = require('bcryptjs');
 const jwt = require('jsonwebtoken');
 const crypto = require('crypto');
-const nodemailer = require('nodemailer');
 const multer = require('multer');
 const { v4: uuidv4 } = require('uuid');
 const fs = require('fs');
 const pool = require('./db');
-const { stripEnvQuotes, hashSecret, maskSecret } = require('./utils/security');
+const { hashSecret, maskSecret } = require('./utils/security');
+const transporter = require('./services/mailer');
+const { createCorsMiddleware } = require('./config/cors');
+const { allowedOrigins, getBaseUrl, getStartupBaseUrl, isProduction, jwtSecret: JWT_SECRET, port: PORT } = require('./config/runtime');
 const {
   canReadUser,
   canUpdateUser,
@@ -21,69 +22,9 @@ const {
 } = require('./policies/accessPolicy');
 
 const app = express();
-const PORT = process.env.PORT || 3001;
-const isProduction = process.env.NODE_ENV === 'production';
-const JWT_SECRET = process.env.JWT_SECRET || (isProduction ? null : 'fasto_dev_secret_change_me');
-
-if (!JWT_SECRET) {
-  throw new Error('JWT_SECRET is required in production.');
-}
-
 const USER_PUBLIC_FIELDS = 'id, tenant_id, team_id, name, email, slug, role, status, bio, avatar_url, sound_enabled, created_at';
 
-const transporter = nodemailer.createTransport({
-  host: process.env.SMTP_HOST || 'mail.blyzer.com.br',
-  port: parseInt(process.env.SMTP_PORT) || 587,
-  secure: false, // false para 587 (STARTTLS)
-  auth: {
-    user: stripEnvQuotes(process.env.SMTP_USER || 'nao-responda@blyzer.com.br'),
-    pass: stripEnvQuotes(process.env.SMTP_PASS || ''),
-  },
-  tls: {
-    ciphers: 'SSLv3',
-    rejectUnauthorized: false
-  },
-  debug: process.env.SMTP_DEBUG === 'true',
-  logger: process.env.SMTP_DEBUG === 'true'
-});
-
-// Helper para obter a URL base
-const getBaseUrl = (req) => {
-  // Use explicit environment variable if set
-  if (process.env.APP_URL) return process.env.APP_URL;
-  
-  // Otherwise, attempt to construct it from the request object dynamically
-  const host = req ? (req.get('host') || 'localhost:3001') : 'localhost:3001';
-  const protocol = (req && (req.protocol === 'https' || req.get('x-forwarded-proto') === 'https')) ? 'https' : 'http';
-  
-  // Se estivermos em produção e o host não for localhost, force HTTPS
-  if (process.env.NODE_ENV === 'production' && !host.includes('localhost')) {
-    return `https://${host}`;
-  }
-  return `${protocol}://${host}`;
-};
-
-// Quando não temos a request (ex: startup), usamos uma versão simplificada
-const getStartupBaseUrl = () => {
-  if (process.env.APP_URL) return process.env.APP_URL;
-  if (process.env.NODE_ENV === 'production') return 'https://fasto.blyzer.com.br';
-  return 'http://localhost:3001';
-};
-
-const allowedOrigins = (process.env.CORS_ORIGIN || '')
-  .split(',')
-  .map(origin => origin.trim())
-  .filter(Boolean);
-
-app.use(cors({
-  origin: (origin, callback) => {
-    if (!origin || !isProduction || allowedOrigins.includes(origin)) {
-      return callback(null, true);
-    }
-    return callback(new Error('Origem não permitida pelo CORS.'));
-  },
-  credentials: true
-}));
+app.use(createCorsMiddleware({ allowedOrigins, isProduction }));
 app.use(express.json());
 
 // Logger de Requisições
diff --git a/backend/services/mailer.js b/backend/services/mailer.js
new file mode 100644
index 0000000..b108e2c
--- /dev/null
+++ b/backend/services/mailer.js
@@ -0,0 +1,20 @@
+const nodemailer = require('nodemailer');
+const { smtp } = require('../config/runtime');
+
+const transporter = nodemailer.createTransport({
+  host: smtp.host,
+  port: smtp.port,
+  secure: false,
+  auth: {
+    user: smtp.user,
+    pass: smtp.pass,
+  },
+  tls: {
+    ciphers: 'SSLv3',
+    rejectUnauthorized: false
+  },
+  debug: smtp.debug,
+  logger: smtp.debug
+});
+
+module.exports = transporter;
diff --git a/src/components/Layout.tsx b/src/components/Layout.tsx
index 72bd5c7..31a9c7e 100644
--- a/src/components/Layout.tsx
+++ b/src/components/Layout.tsx
@@ -235,7 +235,11 @@ export const Layout: React.FC<{ children: React.ReactNode }> = ({ children }) =>
           {!isSuperAdmin && (
             <>
               <SidebarItem to="/" icon={LayoutDashboard} label="Dashboard" collapsed={isSidebarCollapsed} />
-              
+
+              {currentUser.role === 'agent' && (
+                <SidebarItem to={`/users/${currentUser.slug || currentUser.id}`} icon={MessageSquare} label="Seus Atendimentos" collapsed={isSidebarCollapsed} />
+              )}
+
               {currentUser.role !== 'agent' && (
                 <>
                   <SidebarItem to="/ranking" icon={Trophy} label="Ranking de Vendedores" collapsed={isSidebarCollapsed} />