openvibe-shared v4.91.0 (was v4.88.0) (#50)

ddiff --git a/README.md b/README.md
iindex 404f974..b51a187 100644
---- a/README.md
++++ b/README.md
@@@ -73,7 +73,7 @@ Environment variable names are in [.env.example](.env.example); no value is comm
  - **PostgreSQL** — `DATABASE_URL` (through PgBouncer) and `DATABASE_DIRECT_URL` (migrations); embedded PGlite in
    `CAM_PGLITE_DIR` for development.
  - **Valkey** — optional `VALKEY_URL`, `VALKEY_PREFIX` (readiness lists it; the limits in v1 count in-process).
--- **Packages** — `openvibe-contracts` v0.234.0, `openvibe-sdk` v0.74.0, `openvibe-shared` v4.88.0, the same tags
++- **Packages** — `openvibe-contracts` v0.234.0, `openvibe-sdk` v0.74.0, `openvibe-shared` v4.91.0, the same tags
    OpenVibe.Meme pins.
  
  ## API
@@@ -187,5 +187,5 @@ AGPL-3.0-only. See [LICENSE](LICENSE).
  <!-- versions:start -->
  - openvibe-contracts: v0.237.0
  - openvibe-sdk: v0.74.0
--- openvibe-shared: v4.88.0
++- openvibe-shared: v4.91.0
  <!-- versions:end -->
ddiff --git a/STATUS.json b/STATUS.json
iindex bb82599..cdf1808 100644
---- a/STATUS.json
++++ b/STATUS.json
@@@ -10,11 +10,11 @@
    "domain": "openvibe.cam",
    "contracts": "openvibe-contracts v0.237.0",
    "sdk": "openvibe-sdk v0.74.0",
--  "shared": "openvibe-shared v4.88.0",
++  "shared": "openvibe-shared v4.91.0",
    "packages": [
      "openvibe-contracts v0.237.0",
      "openvibe-sdk v0.74.0",
--    "openvibe-shared v4.88.0"
++    "openvibe-shared v4.91.0"
    ],
    "summary": "OpenVibe.Cam is the camera app, the private wall for cameras a person owns, and the API Live's cam button calls. The camera preview, timer, burst, grid and filter run in the browser; a photo is posted to Cam and forwarded to OpenVibe.Pics with the person's own Network token. A camera is private: its owner sees it, and a viewer sees it only while a grant naming them is unrevoked and unexpired, checked on every read, so a revocation is refused at once. Live's cam button calls Cam with the viewer's token; Cam reads OpenVibe.Media's public live frame, saves the JPEG to Pics as that person, and returns the line Live posts in the stream's chat. Cam keeps a Pics slug, links, filter and caption — never the picture bytes — and there is no face recognition.",
    "works": [
@@@ -58,5 +58,5 @@
      "deploy files"
    ],
    "deployment": "not deployed: the unit and nginx vhost are deploy/systemd/openvibe-cam.service and deploy/nginx/openvibe.cam.conf",
--  "updated": "2026-11-01"
++  "updated": "2026-11-02"
  }
ddiff --git a/package-lock.json b/package-lock.json
iindex a80b9aa..4dfe7d4 100644
---- a/package-lock.json
++++ b/package-lock.json
@@@ -17,7 +17,7 @@
          "iovalkey": "^0.4.0",
          "openvibe-contracts": "https://codeload.github.com/OpenVibers/OpenVibe.Contracts/tar.gz/refs/tags/v0.237.0",
          "openvibe-sdk": "https://codeload.github.com/OpenVibers/OpenVibe.SDK/tar.gz/refs/tags/v0.74.0",
--        "openvibe-shared": "https://codeload.github.com/OpenVibers/OpenVibe.Shared/tar.gz/refs/tags/v4.88.0",
++        "openvibe-shared": "https://codeload.github.com/OpenVibers/OpenVibe.Shared/tar.gz/refs/tags/v4.91.0",
          "pg": "^8.23.0"
        },
        "devDependencies": {
@@@ -1194,9 +1194,9 @@
        }
      },
      "node_modules/openvibe-shared": {
--      "version": "4.88.0",
--      "resolved": "https://codeload.github.com/OpenVibers/OpenVibe.Shared/tar.gz/refs/tags/v4.88.0",
--      "integrity": "sha512-ovHIqOOq5sFWDOqajB2ssF8EoymDZoi9BRcsDQwNckg0a2C9IkvLUzRsoNQKVaeOerXB7+Y1fpscY0GExuGrPw==",
++      "version": "4.91.0",
++      "resolved": "https://codeload.github.com/OpenVibers/OpenVibe.Shared/tar.gz/refs/tags/v4.91.0",
++      "integrity": "sha512-Gea2I7qN+waTU9mg627ipiJBSdInKEw9kUCKFVumB5NYYlUMWRuTY8fjRbSkja//2qRvBZG+YZAGXdOcznvjHA==",
        "license": "MIT",
        "dependencies": {
          "jsonwebtoken": "^9.0.0",
ddiff --git a/package.json b/package.json
iindex 4b7d724..1247703 100644
---- a/package.json
++++ b/package.json
@@@ -25,7 +25,7 @@
      "iovalkey": "^0.4.0",
      "openvibe-contracts": "https://codeload.github.com/OpenVibers/OpenVibe.Contracts/tar.gz/refs/tags/v0.237.0",
      "openvibe-sdk": "https://codeload.github.com/OpenVibers/OpenVibe.SDK/tar.gz/refs/tags/v0.74.0",
--    "openvibe-shared": "https://codeload.github.com/OpenVibers/OpenVibe.Shared/tar.gz/refs/tags/v4.88.0",
++    "openvibe-shared": "https://codeload.github.com/OpenVibers/OpenVibe.Shared/tar.gz/refs/tags/v4.91.0",
      "pg": "^8.23.0"
    },
    "engines": {