fix: API funcionando com dados reais + dotenv config

- Adiciona dotenv para carregar variáveis de ambiente
- Configura DB_HOST para servidor remoto (176.9.3.158)
- Cria endpoint /api/diagnostic para testes
- Actualiza título: "Plan EAL" → "Dashboard Descomplicar"
- Adiciona tsconfig.json para pasta /api
- Fix: Carrega .env antes de inicializar MySQL pool

Tarefa: #1556

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

api/routes/diagnostic.ts

@@ -0,0 +1,76 @@
+/**
+ * Diagnostic API Route
+ * @author Descomplicar® | @link descomplicar.pt | @copyright 2026
+ */
+import { Router } from 'express'
+import type { Request, Response } from 'express'
+import * as dashboardService from '../services/dashboard.js'
+import * as calendarService from '../services/calendar.js'
+import db from '../db.js'
+
+const router = Router()
+
+router.get('/', async (req: Request, res: Response) => {
+  const tests = []
+
+  // Test database connection
+  try {
+    await db.query('SELECT 1')
+    tests.push({ name: 'DB Connection', status: 'OK' })
+  } catch (error: any) {
+    tests.push({ name: 'DB Connection', status: 'FAILED', error: error.message })
+  }
+
+  // Test each dashboard service function
+  const functions = [
+    { name: 'getUrgenteTasks', fn: dashboardService.getUrgenteTasks },
+    { name: 'getAltaTasks', fn: dashboardService.getAltaTasks },
+    { name: 'getVencidasTasks', fn: dashboardService.getVencidasTasks },
+    { name: 'getEmTestesTasks', fn: dashboardService.getEmTestesTasks },
+    { name: 'getEstaSemana', fn: dashboardService.getEstaSemana },
+    { name: 'getMondayMood', fn: dashboardService.getMondayMood },
+    { name: 'getTickets', fn: dashboardService.getTickets },
+    { name: 'getContactarLeads', fn: dashboardService.getContactarLeads },
+    { name: 'getFollowupLeads', fn: dashboardService.getFollowupLeads },
+    { name: 'getPropostaLeads', fn: dashboardService.getPropostaLeads },
+    { name: 'getProjectos', fn: dashboardService.getProjectos },
+    { name: 'getTimesheet', fn: dashboardService.getTimesheet },
+    { name: 'getBilling360', fn: dashboardService.getBilling360 },
+    { name: 'getPipeline', fn: dashboardService.getPipeline }
+  ]
+
+  for (const { name, fn } of functions) {
+    try {
+      await fn()
+      tests.push({ name, status: 'OK' })
+    } catch (error: any) {
+      tests.push({ name, status: 'FAILED', error: error.message })
+    }
+  }
+
+  // Test calendar functions
+  try {
+    await calendarService.getTodayEvents()
+    tests.push({ name: 'getTodayEvents', status: 'OK' })
+  } catch (error: any) {
+    tests.push({ name: 'getTodayEvents', status: 'FAILED', error: error.message })
+  }
+
+  try {
+    await calendarService.getWeekEvents()
+    tests.push({ name: 'getWeekEvents', status: 'OK' })
+  } catch (error: any) {
+    tests.push({ name: 'getWeekEvents', status: 'FAILED', error: error.message })
+  }
+
+  const failed = tests.filter(t => t.status === 'FAILED')
+  const summary = {
+    total: tests.length,
+    passed: tests.filter(t => t.status === 'OK').length,
+    failed: failed.length
+  }
+
+  res.json({ summary, tests, failed })
+})
+
+export default router