fix: add libnginx-mod-http-ndk dep and load ndk_http_module.so

ngx_http_lua_module depends on the nginx development kit (NDK) for the
ndk_set_var_value symbol. Must install libnginx-mod-http-ndk and load
ndk_http_module.so before ngx_http_lua_module.so.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

docker/Dockerfile

@@ -57,7 +57,7 @@ RUN set -eux; \
     if [ "$WITH_GRAPHVIZ" = "1" ]; then apt-get install -y --no-install-recommends graphviz; fi; \
     if [ "$WITH_POPPLER" = "1" ]; then apt-get install -y --no-install-recommends poppler-utils; fi; \
     if [ "$WITH_PSQL_CLIENT" = "1" ]; then apt-get install -y --no-install-recommends postgresql-client; fi; \
-    if [ "$WITH_NGINX" = "1" ]; then apt-get install -y --no-install-recommends nginx libnginx-mod-http-geoip2 libnginx-mod-http-lua libmaxminddb0; fi; \
+    if [ "$WITH_NGINX" = "1" ]; then apt-get install -y --no-install-recommends nginx libnginx-mod-http-geoip2 libnginx-mod-http-ndk libnginx-mod-http-lua libmaxminddb0; fi; \
     rm -rf /var/lib/apt/lists/*
 
 # Usuários/grupos (idempotente)

docker/config/nginx/nginx.conf

@@ -1,3 +1,4 @@
+load_module modules/ndk_http_module.so;
 load_module modules/ngx_http_geoip2_module.so;
 load_module modules/ngx_http_lua_module.so;