Refactor for i18n, CMS integration, and project slugs; enhance admin & analytics

Co-authored-by: dennis <dennis@konkol.net>

app/api/email/route.tsx

@@ -2,10 +2,8 @@ import { type NextRequest, NextResponse } from "next/server";
 import nodemailer from "nodemailer";
 import SMTPTransport from "nodemailer/lib/smtp-transport";
 import Mail from "nodemailer/lib/mailer";
-import { PrismaClient } from '@prisma/client';
 import { checkRateLimit, getRateLimitHeaders } from '@/lib/auth';
-
-const prisma = new PrismaClient();
+import { prisma } from "@/lib/prisma";
 
 // Sanitize input to prevent XSS
 function sanitizeInput(input: string, maxLength: number = 10000): string {
@@ -123,11 +121,11 @@ export async function POST(request: NextRequest) {
             connectionTimeout: 30000, // 30 seconds
             greetingTimeout: 30000,   // 30 seconds
             socketTimeout: 60000,     // 60 seconds
-            // Additional TLS options for better compatibility
-            tls: {
-                rejectUnauthorized: false, // Allow self-signed certificates
-                ciphers: 'SSLv3'
-            }
+            // TLS: allow opting into self-signed certificates if needed
+            tls:
+              process.env.SMTP_ALLOW_SELF_SIGNED === "true"
+                ? { rejectUnauthorized: false }
+                : undefined,
         };
 
         // Creating transport with configured options