Contracts devDependency v0.31.0: the release-manifest 1.1.0 schema comes from the package; the interim fixture is gone

ddiff --git a/package-lock.json b/package-lock.json
iindex b399571..5f0fb71 100644
---- a/package-lock.json
++++ b/package-lock.json
@@@ -15,7 +15,7 @@
          "better-sqlite3": "^11.10.0",
          "express": "^4.22.3",
          "linkedom": "^0.18.13",
--        "openvibe-contracts": "https://codeload.github.com/OpenVibers/OpenVibe.Contracts/tar.gz/refs/tags/v0.30.2"
++        "openvibe-contracts": "https://codeload.github.com/OpenVibers/OpenVibe.Contracts/tar.gz/refs/tags/v0.31.0"
        }
      },
      "node_modules/accepts": {
@@@ -1321,9 +1321,9 @@
        }
      },
      "node_modules/openvibe-contracts": {
--      "version": "0.30.2",
--      "resolved": "https://codeload.github.com/OpenVibers/OpenVibe.Contracts/tar.gz/refs/tags/v0.30.2",
--      "integrity": "sha512-R01NgRY5V/GEYWkWUyxfl1MifSQb4dfJy11VS9RP+wsWedh2Crr9/IL7yGSn1PytwTKKL+tQl/r4ppGfH3TwLg==",
++      "version": "0.31.0",
++      "resolved": "https://codeload.github.com/OpenVibers/OpenVibe.Contracts/tar.gz/refs/tags/v0.31.0",
++      "integrity": "sha512-1LUi9aJ1PaMeO2HtbZtk8J5DcGztDMzDyUnpMM/GiM84rlW2HhbpT0rMqoKgy/tOcpA417qbWNvZYW7PQC1aBA==",
        "dev": true,
        "license": "AGPL-3.0-only",
        "dependencies": {
ddiff --git a/package.json b/package.json
iindex a555e6d..c40ba52 100644
---- a/package.json
++++ b/package.json
@@@ -76,6 +76,6 @@
      "better-sqlite3": "^11.10.0",
      "express": "^4.22.3",
      "linkedom": "^0.18.13",
--    "openvibe-contracts": "https://codeload.github.com/OpenVibers/OpenVibe.Contracts/tar.gz/refs/tags/v0.30.2"
++    "openvibe-contracts": "https://codeload.github.com/OpenVibers/OpenVibe.Contracts/tar.gz/refs/tags/v0.31.0"
    }
  }
ddiff --git a/test/fixtures/release-manifest.v1.1.0.json b/test/fixtures/release-manifest.v1.1.0.json
ddeleted file mode 100644
iindex 52c9449..0000000
---- a/test/fixtures/release-manifest.v1.1.0.json
++++ /dev/null
@@@ -1,85 +0,0 @@
--{
--  "$schema": "https://json-schema.org/draft/2020-12/schema",
--  "$id": "https://openvibe.network/contracts/registry/release-manifest.v1.json",
--  "title": "ReleaseManifest",
--  "description": "What a running web surface is serving (GET /release.json, ADR-016). Open clients compare it on focus and reconnect. A client outside the supported window is prompted and reloads only when that is safe. Since 1.1.0 the manifest can also say which components changed, so a client can apply style and content changes in place, and which contract versions the server still accepts, so a mixed-version population can be checked.",
--  "type": "object",
--  "required": ["service", "release", "released_at", "contracts_version", "min_client_release", "mixed_version_window_hours"],
--  "additionalProperties": false,
--  "properties": {
--    "service": { "type": "string", "pattern": "^[a-z][a-z0-9-]{1,39}$" },
--    "release": { "type": "string", "pattern": "^[0-9a-f]{7,40}$", "description": "The deployed commit (short sha)." },
--    "released_at": { "type": "string", "format": "date-time", "description": "Commit time of the release." },
--    "booted_at": { "type": "string", "format": "date-time" },
--    "contracts_version": { "type": ["string", "null"], "description": "openvibe-contracts version the service runs against." },
--    "packages": {
--      "type": "object",
--      "description": "Versions of the platform packages the page loads (openvibe-shared, openvibe-sdk, ...).",
--      "additionalProperties": { "type": "string" }
--    },
--    "min_client_release": { "type": ["string", "null"], "description": "Oldest client release still supported; null while every client in the window is." },
--    "mixed_version_window_hours": { "type": "integer", "minimum": 0 },
--    "components": {
--      "type": "object",
--      "description": "Since 1.1.0. Per-component versions. A client applies a new release in place only when every component that changed is a style, content or server component and the contract ranges still match. Any other change is applied by a reload at a safe moment. The shell component covers every client-facing file that no other component lists.",
--      "propertyNames": { "pattern": "^[a-z][a-z0-9-]{0,39}$" },
--      "additionalProperties": {
--        "type": "object",
--        "required": ["kind", "version"],
--        "additionalProperties": false,
--        "properties": {
--          "kind": {
--            "enum": ["style", "content", "script", "server"],
--            "description": "style: stylesheets, swapped in place. content: server-rendered regions (data-ov-content), re-fetched in place. script: code the page runs, applied by a reload. server: code only the server runs, no client action."
--          },
--          "version": { "type": "string", "pattern": "^[0-9A-Za-z._+-]{1,64}$", "description": "Content hash of the component's files, or a version the service states." }
--        }
--      }
--    },
--    "assets": {
--      "type": "object",
--      "description": "Since 1.1.0. Asset map: each logical URL path the release serves, mapped to its content-addressed URL. HTML from this release references only these URLs.",
--      "propertyNames": { "pattern": "^/[^?#\\s]{0,255}$" },
--      "additionalProperties": {
--        "type": "object",
--        "required": ["url", "component"],
--        "additionalProperties": false,
--        "properties": {
--          "url": { "type": "string", "minLength": 1, "maxLength": 512 },
--          "component": { "type": "string", "pattern": "^[a-z][a-z0-9-]{0,39}$" },
--          "integrity": { "type": "string", "pattern": "^sha(256|384|512)-[A-Za-z0-9+/]+={0,2}$" }
--        }
--      }
--    },
--    "schema_generation": {
--      "type": ["integer", "null"],
--      "minimum": 0,
--      "description": "Since 1.1.0. The database schema generation this release migrates to and runs against; null when the service does not track one."
--    },
--    "schema_compatible_from": {
--      "type": ["integer", "null"],
--      "minimum": 0,
--      "description": "Since 1.1.0. The oldest schema generation whose code still runs against this release's schema, because every migration since then only expanded it. Rolling back to a release whose schema_generation is lower is not data-safe."
--    },
--    "contract_ranges": {
--      "type": "object",
--      "description": "Since 1.1.0. For each contract the service produces (its API, as served to its own pages and clients) or consumes: the version this release speaks and the range of versions it accepts from the other side. A page from release A works against a server on release B when, for every contract A produces, A's version is in B's accepts and B's version is in A's accepts.",
--      "propertyNames": { "pattern": "^[a-z][a-z0-9-]*(\\.[a-z0-9_-]+)+$", "maxLength": 100 },
--      "additionalProperties": {
--        "type": "object",
--        "required": ["version", "accepts"],
--        "additionalProperties": false,
--        "properties": {
--          "version": { "type": "string", "pattern": "^\\d+\\.\\d+\\.\\d+$" },
--          "accepts": { "type": "string", "pattern": "^>=\\d+\\.\\d+\\.\\d+ <\\d+\\.\\d+\\.\\d+$", "description": "A half-open range, always written \">=a.b.c <x.y.z\"." },
--          "role": { "enum": ["produces", "consumes"], "description": "produces when absent." }
--        }
--      }
--    },
--    "metrics_url": {
--      "type": ["string", "null"],
--      "maxLength": 512,
--      "description": "Since 1.1.0. Same-origin URL where clients POST their update outcome counts (applied, reloaded, deferred, failed); null or absent when the service does not collect them."
--    }
--  }
--}
ddiff --git a/test/release-mixed-version.test.js b/test/release-mixed-version.test.js
iindex cff1802..be82d4f 100644
---- a/test/release-mixed-version.test.js
++++ b/test/release-mixed-version.test.js
@@@ -40,7 +40,7 @@ const client3 = compat.replay([{ path: '/api/items', check: hasTitle }]);
  
  // Manifests the way a service makes them (createRelease), and one the way a fixture from production looks.
  const manifest = (sha, version, accepts, extra = {}) => createRelease({
--    service: 'items', root: __dirname, env: { RELEASE_COMMIT: sha, RELEASE_AT: '2026-09-23T10:00:00Z' }, schema: require('./fixtures/release-manifest.v1.1.0.json'),
++    service: 'items', root: __dirname, env: { RELEASE_COMMIT: sha, RELEASE_AT: '2026-09-23T10:00:00Z' }, schema: require('openvibe-contracts/contracts/registry/release-manifest.v1.json'),
      contracts: { 'items.web-api': { version, accepts } }, logger: { warn() {} }, ...extra,
  }).full();
  const R1 = { name: 'R1', manifest: manifest('1111111', '1.0.0', '^1.0.0', { schemaGeneration: 3 }), server: service(v1), client: client1 };
ddiff --git a/test/release.test.js b/test/release.test.js
iindex 80b1c31..bd2373b 100644
---- a/test/release.test.js
++++ b/test/release.test.js
@@@ -7,7 +7,7 @@ const { createRegistry } = require('../metrics');
  const { openPage } = require('../release-compat');
  
  const ROOT = path.join(__dirname, '..');
--const FIXTURE = require('./fixtures/release-manifest.v1.1.0.json');
++const FIXTURE = require('openvibe-contracts/contracts/registry/release-manifest.v1.json');
  const Ajv2020 = require(require.resolve('ajv/dist/2020', { paths: [path.dirname(require.resolve('openvibe-contracts/package.json'))] }));
  const addFormats = require(require.resolve('ajv-formats', { paths: [path.dirname(require.resolve('openvibe-contracts/package.json'))] }));
  const contracts = require('openvibe-contracts');