nginx: the commented template for exposing /api/ sets the client-IP headers from $remote_addr (X-Real-IP, X-Forwarded-For, CF-Connecting-IP), like every active location, instead of $proxy_add_x_forwarded_for, which passes a client-sent X-Forwarded-For through if someone uncomments it (browser-check follow-up, WS-Q task 3; the active locations already set all three). Comment only

ddiff --git a/deploy/nginx/ai.openvibe.network.conf b/deploy/nginx/ai.openvibe.network.conf
iindex 6d77e1a..3aff6ed 100644
---- a/deploy/nginx/ai.openvibe.network.conf
++++ b/deploy/nginx/ai.openvibe.network.conf
@@@ -55,7 +55,9 @@ server {
          # proxy_pass http://127.0.0.1:4700;
          # proxy_http_version 1.1;
          # proxy_set_header Host $host;
--        # proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
++        # proxy_set_header X-Real-IP $remote_addr;          # client address from $remote_addr only (realip),
++        # proxy_set_header X-Forwarded-For $remote_addr;    # never appended to or passed through
++        # proxy_set_header CF-Connecting-IP $remote_addr;
          # proxy_set_header X-Forwarded-Proto $scheme;
          # proxy_read_timeout 90s;   # ?wait= holds a request up to 60 s
      }