nginx: space imports get their own body limits (3 MB for POST /api/v1/spaces/:space/import, 7 MB for the /s/:space/import form; everything else stays at 1 MB), so a 2 MB bundle reaches the app's own checks instead of nginx's 413; header comment says the vhost is live

ddiff --git a/deploy/nginx/openvibe.wiki.conf b/deploy/nginx/openvibe.wiki.conf
iindex 86788cf..7170eba 100644
---- a/deploy/nginx/openvibe.wiki.conf
++++ b/deploy/nginx/openvibe.wiki.conf
@@@ -2,8 +2,8 @@
  ## openvibe.wiki — Nginx Configuration (REFERENCE)
  ##
  ## Deployed to /etc/nginx/sites-available/openvibe.wiki.conf — keep them in sync and reload
--## nginx after changing it. Not live: openvibe.wiki is served by OpenVibe.Sites (placeholder)
--## until the launch release removes it from OpenVibe.Sites/sites.json in the same release.
++## nginx after changing it. Live since 2026-09-23 (the launch release removed openvibe.wiki from
++## OpenVibe.Sites/sites.json).
  ##
  ## The Node app (port 4800, systemd unit openvibe-wiki) renders every page. nginx terminates
  ## TLS, redirects www → apex, rate-limits auth, API and form posts, and never caches anything
@@@ -94,6 +94,20 @@ server {
          proxy_pass http://127.0.0.1:4800;
      }
  
++    # Space imports (server/wiki/import.js): a JSON bundle of up to 2 MB, or the same bundle pasted
++    # into the form (URL-encoded, the app accepts up to 6 MB there). The app also allows only 20
++    # imports an hour per address. Regex locations win over the /api/ and / prefixes above and below.
++    location ~ ^/api/v1/spaces/[^/]+/import$ {
++        client_max_body_size 3m;
++        limit_req zone=ovwiki_api burst=40 nodelay;
++        proxy_pass http://127.0.0.1:4800;
++    }
++    location ~ ^/s/[^/]+/import$ {
++        client_max_body_size 7m;
++        limit_req zone=ovwiki_write burst=20 nodelay;
++        proxy_pass http://127.0.0.1:4800;
++    }
++
      location / {
          limit_req zone=ovwiki_write burst=20 nodelay;
          proxy_pass http://127.0.0.1:4800;