agent.json names /openapi.json, which this site now serves (#302)

ddiff --git a/server/agent-descriptor.js b/server/agent-descriptor.js
iindex e8ddab6..7419130 100644
---- a/server/agent-descriptor.js
++++ b/server/agent-descriptor.js
@@@ -3,6 +3,7 @@
  // Every field is something this host really serves: the public media index and the watch pages Media is the
  // canonical home of, the Media API under /api/v1, llms.txt, llms-full.txt and the sitemap. No OpenAPI document or
  // MCP endpoint is published here, so none is named.
++// 11-03 (SEO-3): this site serves /openapi.json now (the contracts' document for it), so it is named below.
  module.exports = {
      id: 'media',
      name: 'OpenVibe.Media',
@@@ -10,6 +11,7 @@ module.exports = {
      home: 'https://openvibe.media',
      site: 'openvibe.media',
      api: '/api/v1',
++    openapi: '/openapi.json',
      policy: {
          auth: ['none', 'bearer', 'Network OIDC'],
          rateLimit: 'The public pages and playable bytes are not limited per address; the API answers a tenant token (or a signed-in person) and is bounded by the project\'s quotas, published at /limits.json',