fix: use full nginx.conf instead of conf.d snippet to avoid directive nesting error

Alpine nginx includes conf.d/*.conf inside the http{} block, but our
template contained map/log_format directives and a server{} block that
conflicted with the include structure. Switched to a complete standalone
nginx.conf with proper user/events/http nesting.

docker-entrypoint.sh

@@ -5,8 +5,9 @@ set -e
 # Ensure nginx can write to the shared logs directory
 mkdir -p /logs && chown nginx:nginx /logs
 
-# Render nginx config from template
+# Render nginx config from template to /etc/nginx/nginx.conf
-sed "s|__API_UPSTREAM__|${API_UPSTREAM}|g" /etc/nginx/conf.d/nginx.conf.template > /etc/nginx/conf.d/default.conf
+# (full config, not conf.d/ snippet — avoids Alpine include nesting issues)
+sed "s|__API_UPSTREAM__|${API_UPSTREAM}|g" /etc/nginx/conf.d/nginx.conf.template > /etc/nginx/nginx.conf
 
 # Render client-side config.json for fallback use
 envsubst '${API_PUBLIC_URL}' < /usr/share/nginx/html/config.json.template > /usr/share/nginx/html/config.json

nginx.conf.template

@@ -1,23 +1,34 @@
-# Map ISO timestamp to date-only string for daily log rotation
+# Full nginx configuration — rendered to /etc/nginx/nginx.conf
-map $time_iso8601 $log_date {
+# (NOT placed in conf.d/ to avoid include nesting issues with Alpine nginx)
-    "~^(?<date>\d{4}-\d{2}-\d{2})"  $date;
+
-    default                       "unknown";
+user nginx;
+worker_processes auto;
+error_log /var/log/nginx/error.log warn;
+pid /var/run/nginx.pid;
+
+events {
+    worker_connections 1024;
 }
 
-log_format kmtn_json escape=json
+http {
+    include /etc/nginx/mime.types;
+    default_type application/octet-stream;
+
+    log_format kmtn_json escape=json
         '{'
             '"time":"$time_iso8601",'
             '"remote_addr":"$remote_addr",'
             '"x_forwarded_for":"$http_x_forwarded_for"'
         '}';
 
-access_log /logs/access-$log_date.log kmtn_json;
+    access_log /logs/access.log kmtn_json;
+    sendfile on;
 
-upstream ssr_backend {
+    upstream ssr_backend {
         server 127.0.0.1:4200;
-}
+    }
 
-server {
+    server {
     listen 80;
     server_name _;
     root /usr/share/nginx/html;
@@ -83,3 +94,4 @@ server {
         add_header X-Powered-By "Angular SSR" always;
     }
 }
+}