chore: optimize nextjs build memory and rename middleware

middleware.ts

@@ -1,106 +0,0 @@
-import createMiddleware from 'next-intl/middleware';
-import { NextRequest, NextResponse } from 'next/server';
-
-// Create the internationalization middleware
-const intlMiddleware = createMiddleware({
-  // A list of all locales that are supported
-  locales: ['en', 'de'],
-
-  // Used when no locale matches
-  defaultLocale: 'en',
-});
-
-export default async function middleware(request: NextRequest) {
-  const { method, url, headers } = request;
-  const { pathname } = request.nextUrl;
-
-  // Explicit bypass for infrastructure and Payload CMS routes to avoid locale redirects/interception
-  if (
-    pathname.startsWith('/admin') ||
-    pathname.startsWith('/api') ||
-    pathname.startsWith('/stats') ||
-    pathname.startsWith('/errors') ||
-    pathname.startsWith('/health') ||
-    pathname.startsWith('/uploads') ||
-    pathname.includes('/api/og') ||
-    pathname.includes('opengraph-image') ||
-    pathname.endsWith('sitemap.xml') ||
-    pathname.endsWith('manifest.webmanifest')
-  ) {
-    return NextResponse.next();
-  }
-
-  // Build header object for logging
-  const headerObj: Record<string, string> = {};
-  headers.forEach((value, key) => {
-    headerObj[key] = value;
-  });
-
-  // Defensive URL correction for internal container leakage (0.0.0.0, klz-app, localhost)
-  // This prevents hydration mismatches and host poisoning in generated links/metadata.
-  const urlObj = new URL(url);
-  const internalHosts = ['0.0.0.0', 'klz-app', 'localhost', '127.0.0.1'];
-
-  let effectiveRequest = request;
-  if (internalHosts.includes(urlObj.hostname)) {
-    const proto = headers.get('x-forwarded-proto') || 'https';
-    // Prioritize x-forwarded-host (passed by Traefik) over the local Host header
-    const hostHeader =
-      headers.get('x-forwarded-host') || headers.get('host') || 'testing.klz-cables.com';
-
-    urlObj.protocol = proto;
-
-    effectiveRequest = new NextRequest(urlObj, {
-      headers: request.headers,
-      method: request.method,
-      body: request.body,
-    });
-
-    if (process.env.NODE_ENV !== 'production' || !process.env.CI) {
-      console.log(
-        `🛡️ Proxy: Fixed internal URL leak: ${url} -> ${urlObj.toString()} | Proto: ${proto} | Host: ${hostHeader}`,
-      );
-    }
-  }
-
-  try {
-    // Apply internationalization middleware
-    const response = intlMiddleware(effectiveRequest);
-
-    // Upgrade 307 (Temporary Redirect) to 308 (Permanent Redirect)
-    // This improves compatibility with scanners (Website Carbon, PageSpeed) and SEO.
-    if (response.status === 307) {
-      const location = response.headers.get('Location');
-      if (location) {
-        const url = new URL(location, request.url);
-        return Response.redirect(url, 308);
-      }
-    }
-
-    // Allow iframe embedding from recorder domains
-    const referer = headers.get('referer') || '';
-    const recorderDomains = ['recorder.localhost', 'recorder.mintel.me'];
-    const isRecorderRequest = recorderDomains.some((domain) => referer.includes(domain));
-
-    if (isRecorderRequest) {
-      response.headers.delete('x-frame-options');
-      response.headers.delete('content-security-policy');
-      response.headers.set('Access-Control-Allow-Origin', '*');
-    }
-
-    return response;
-  } catch (error) {
-    console.error(
-      `Request failed: method=${method} url=${url} headers=${JSON.stringify(headerObj)}`,
-      error,
-    );
-    throw error;
-  }
-}
-
-export const config = {
-  matcher: [
-    '/((?!api|_next/static|_next/image|favicon.ico|admin|manifest.webmanifest|.*\\.(?:svg|png|jpg|jpeg|gif|webp|pdf|txt|vcf|xml|webm|mp4|map)$).*)',
-    '/(de|en)/:path*',
-  ],
-};