chore: Next.js proxy migration & E2E integration

Former-commit-id: daf08548d0a8f45b07b4b87405edd081e823edd5

.next/server/middleware/middleware-manifest.json

@@ -1,35 +1,6 @@
 {
   "sorted_middleware": [],
-  "middleware": {
-    "/": {
-      "files": [
-        "server/edge/chunks/[root-of-the-server]__56dd5119._.js",
-        "server/edge/chunks/node_modules__pnpm_5565ae74._.js",
-        "server/edge/chunks/0f3a6_next_dist_esm_build_templates_edge-wrapper_9eac74d5.js"
-      ],
-      "name": "middleware",
-      "page": "/",
-      "matchers": [
-        {
-          "regexp": "/:nextData(_next/data/[^/]{1,})?/((?!api|_next/static|_next/image|favicon.ico|admin|manifest.webmanifest|.*\\.(?:svg|png|jpg|jpeg|gif|webp|pdf|xlsx|txt|vcf|xml|webm|mp4|map)$).*){(\\\\.json)}?",
-          "originalSource": "/((?!api|_next/static|_next/image|favicon.ico|admin|manifest.webmanifest|.*\\.(?:svg|png|jpg|jpeg|gif|webp|pdf|xlsx|txt|vcf|xml|webm|mp4|map)$).*)"
-        },
-        {
-          "regexp": "/:nextData(_next/data/[^/]{1,})?/(de|en)/:path*{(\\\\.json)}?",
-          "originalSource": "/(de|en)/:path*"
-        }
-      ],
-      "wasm": [],
-      "assets": [],
-      "env": {
-        "__NEXT_BUILD_ID": "1ISrtb3247wB9nysQeDHw",
-        "NEXT_SERVER_ACTIONS_ENCRYPTION_KEY": "+9xgpAi1+j3/+CivPX28MOGzBCnaFyOMNKtRCdSUhy8=",
-        "__NEXT_PREVIEW_MODE_ID": "4a530037cd10528408fe1837574faaf0",
-        "__NEXT_PREVIEW_MODE_ENCRYPTION_KEY": "f60eb087fbc9ed744976e433d6f637450b969047d2673fdebed7ce195454b7b1",
-        "__NEXT_PREVIEW_MODE_SIGNING_KEY": "1d4fbcc4f5f23b4b783f81a2a0643482695495e126ad348745c8a4580ba9e9fd"
-      }
-    }
-  },
+  "middleware": {},
   "instrumentation": null,
   "functions": {}
 }