One W3C trace across services (Track O): openvibe-shared v1.7.0 trace.install(app) keeps each request's traceparent and puts it on the calls made while serving it, to loopback and OpenVibe hosts only; Chat also takes the request context from openvibe-contracts http.middleware()

ddiff --git a/package-lock.json b/package-lock.json
iindex bf085e9..6d76aa3 100644
---- a/package-lock.json
++++ b/package-lock.json
@@@ -18,7 +18,7 @@
          "multer": "^2.0.2",
          "openvibe-contracts": "https://codeload.github.com/OpenVibers/OpenVibe.Contracts/tar.gz/refs/tags/v0.35.0",
          "openvibe-sdk": "https://codeload.github.com/OpenVibers/OpenVibe.SDK/tar.gz/refs/tags/v0.7.0",
--        "openvibe-shared": "https://codeload.github.com/OpenVibers/OpenVibe.Shared/tar.gz/refs/tags/v1.6.0",
++        "openvibe-shared": "https://codeload.github.com/OpenVibers/OpenVibe.Shared/tar.gz/refs/tags/v1.7.0",
          "ws": "^8.18.0"
        },
        "engines": {
@@@ -1087,9 +1087,9 @@
        }
      },
      "node_modules/openvibe-shared": {
--      "version": "1.6.0",
--      "resolved": "https://codeload.github.com/OpenVibers/OpenVibe.Shared/tar.gz/refs/tags/v1.6.0",
--      "integrity": "sha512-kd9DdLQg2iK6m/VzwBBhKBNsg9riMzdI4jJFvfgIgW3vTsIz1SflAtZdMjRGbDPx3Hdvba2oOT2085n+npmzNQ==",
++      "version": "1.7.0",
++      "resolved": "https://codeload.github.com/OpenVibers/OpenVibe.Shared/tar.gz/refs/tags/v1.7.0",
++      "integrity": "sha512-gF1PABMEGHhtu0WMkJQHwJOvbYzWcdfOi3feGYrCUkLXIZhpeSvrSOD7SF0+nveWhfCQMFjqNU8Q0d90vv4s/A==",
        "license": "MIT",
        "dependencies": {
          "jsonwebtoken": "^9.0.0"
ddiff --git a/package.json b/package.json
iindex 4336044..54c821a 100644
---- a/package.json
++++ b/package.json
@@@ -29,7 +29,7 @@
      "multer": "^2.0.2",
      "openvibe-contracts": "https://codeload.github.com/OpenVibers/OpenVibe.Contracts/tar.gz/refs/tags/v0.35.0",
      "openvibe-sdk": "https://codeload.github.com/OpenVibers/OpenVibe.SDK/tar.gz/refs/tags/v0.7.0",
--    "openvibe-shared": "https://codeload.github.com/OpenVibers/OpenVibe.Shared/tar.gz/refs/tags/v1.6.0",
++    "openvibe-shared": "https://codeload.github.com/OpenVibers/OpenVibe.Shared/tar.gz/refs/tags/v1.7.0",
      "ws": "^8.18.0"
    },
    "engines": {
ddiff --git a/server/app.js b/server/app.js
iindex bfdb513..724718d 100644
---- a/server/app.js
++++ b/server/app.js
@@@ -65,6 +65,10 @@ function createApp({ chatServer, bridge, mirror, relay, events = null }) {
      // Cloudflare → nginx → Node: TRUST_PROXY hops, but a hop past nginx only when it is a
      // Cloudflare address (DNS-only hosts reach nginx directly with a client-written X-Forwarded-For).
      app.set('trust proxy', trustProxy(config.trustProxy));
++    // The request's W3C trace and request id (openvibe-contracts), carried onto the calls Chat makes.
++    app.use(require('openvibe-contracts').http.middleware());
++    // One W3C trace across services (openvibe-shared/trace): calls made while serving a request carry its traceparent.
++    require('openvibe-shared/trace').install(app);
  
      // GET /release.json (ADR-016, D43) and loopback GET /metrics (Track O): what this deployment is,
      // request rates/latencies and process metrics, from openvibe-shared (before any route).