Refactor demo URLs and add nginx reverse-proxy configuration

main-website/app/data/demos.ts

@@ -1,10 +1,14 @@
+// Base URL
+const BASE_URL = process.env.NEXT_PUBLIC_DEMO_BASE_URL ?? 'http://localhost';
+const isProd = process.env.NODE_ENV === 'production';
+
 export const demoCategories = [
     {
         label: 'Anwaltskanzlei',
         items: [
             {
                 name: 'Anwaltskanzlei Demo 1',
-                url: 'http://localhost:5101',
+                url: isProd ? '/lawfirm-demos/demo1/' : `${BASE_URL}:25601`,
                 preview: '/previews/lawfirm-1.png',
                 description: [
                     'Modernes Design',
@@ -14,7 +18,7 @@ export const demoCategories = [
             },
             {
                 name: 'Anwaltskanzlei Demo 2',
-                url: 'http://localhost:5101',
+                url: isProd ? '/lawfirm-demos/demo2/' : `${BASE_URL}:25602`,
                 preview: '/previews/lawfirm-1.png',
                 description: [
                     'Modernes Design',
@@ -30,7 +34,7 @@ export const demoCategories = [
         items: [
             {
                 name: 'SaaS Landing Page',
-                url: 'http://localhost:5201',
+                url: isProd ? '/lawfirm-demos/demo2/' : `${BASE_URL}:25801`,
                 preview: '/previews/saas-1.png',
                 description: [
                     'Klares und minimales UI',