feat(test): implement Playwright E2E and Dockerized testing infrastructure

test_data/nginx.conf

@@ -0,0 +1,18 @@
+events {}
+http {
+    server {
+        listen 80;
+        location / {
+            root /usr/share/nginx/html;
+            add_header 'Access-Control-Allow-Origin' '*' always;
+            add_header 'Access-Control-Allow-Methods' 'GET, OPTIONS' always;
+            add_header 'Access-Control-Allow-Headers' 'DNT,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Range' always;
+            if ($request_method = 'OPTIONS') {
+                add_header 'Access-Control-Max-Age' 1728000;
+                add_header 'Content-Type' 'text/plain; charset=utf-8';
+                add_header 'Content-Length' 0;
+                return 204;
+            }
+        }
+    }
+}