Plan T1: move OpenVibe.Blog onto openvibe-sdk/service from… (#2)

ddiff --git a/package-lock.json b/package-lock.json
iindex 9d1bed0..fddd853 100644
---- a/package-lock.json
++++ b/package-lock.json
@@@ -17,7 +17,7 @@
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++        "openvibe-sdk": "https://codeload.github.com/OpenVibers/OpenVibe.SDK/tar.gz/refs/tags/v0.26.0",
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@@@ -177,32 +118,6 @@
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@@@ -247,14 +162,6 @@
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--      "resolved": "https://registry.npmjs.org/rc/-/rc-1.2.8.tgz",
--      "integrity": "sha512-y3bGgqKj3QBdxLbLkomlohkvsA8gdAiUQlSBJnBhfn+BPxg4bc62d8TcBW15wavDfgexCgccckhcZvywyQYPOw==",
--      "license": "(BSD-2-Clause OR MIT OR Apache-2.0)",
--      "optional": true,
--      "peer": true,
--      "dependencies": {
--        "deep-extend": "^0.6.0",
--        "ini": "~1.3.0",
--        "minimist": "^1.2.0",
--        "strip-json-comments": "~2.0.1"
--      },
--      "bin": {
--        "rc": "cli.js"
--      }
--    },
--    "node_modules/readable-stream": {
--      "version": "3.6.2",
--      "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-3.6.2.tgz",
--      "integrity": "sha512-9u/sniCrY3D5WdsERHzHE4G2YCXqoG5FTHUiCC4SIbr6XcLZBY05ya9EKjYek9O5xOAwjGq+1JdGBAS7Q9ScoA==",
--      "license": "MIT",
--      "optional": true,
--      "peer": true,
--      "dependencies": {
--        "inherits": "^2.0.3",
--        "string_decoder": "^1.1.1",
--        "util-deprecate": "^1.0.1"
--      },
--      "engines": {
--        "node": ">= 6"
--      }
--    },
      "node_modules/redis-errors": {
        "version": "1.2.0",
        "resolved": "https://registry.npmjs.org/redis-errors/-/redis-errors-1.2.0.tgz",
@@@ -1683,55 +1335,6 @@
          "url": "https://github.com/sponsors/ljharb"
        }
      },
--    "node_modules/simple-concat": {
--      "version": "1.0.1",
--      "resolved": "https://registry.npmjs.org/simple-concat/-/simple-concat-1.0.1.tgz",
--      "integrity": "sha512-cSFtAPtRhljv69IK0hTVZQ+OfE9nePi/rtJmw5UjHeVyVroEqJXP1sFztKUy1qU+xvz3u/sfYJLa947b7nAN2Q==",
--      "funding": [
--        {
--          "type": "github",
--          "url": "https://github.com/sponsors/feross"
--        },
--        {
--          "type": "patreon",
--          "url": "https://www.patreon.com/feross"
--        },
--        {
--          "type": "consulting",
--          "url": "https://feross.org/support"
--        }
--      ],
--      "license": "MIT",
--      "optional": true,
--      "peer": true
--    },
--    "node_modules/simple-get": {
--      "version": "4.0.1",
--      "resolved": "https://registry.npmjs.org/simple-get/-/simple-get-4.0.1.tgz",
--      "integrity": "sha512-brv7p5WgH0jmQJr1ZDDfKDOSeWWg+OVypG99A/5vYGPqJ6pxiaHLy8nxtFjBA7oMa01ebA9gfh1uMCFqOuXxvA==",
--      "funding": [
--        {
--          "type": "github",
--          "url": "https://github.com/sponsors/feross"
--        },
--        {
--          "type": "patreon",
--          "url": "https://www.patreon.com/feross"
--        },
--        {
--          "type": "consulting",
--          "url": "https://feross.org/support"
--        }
--      ],
--      "license": "MIT",
--      "optional": true,
--      "peer": true,
--      "dependencies": {
--        "decompress-response": "^6.0.0",
--        "once": "^1.3.1",
--        "simple-concat": "^1.0.0"
--      }
--    },
      "node_modules/split2": {
        "version": "4.2.0",
        "resolved": "https://registry.npmjs.org/split2/-/split2-4.2.0.tgz",
@@@ -1756,60 +1359,6 @@
          "node": ">= 0.8"
        }
      },
--    "node_modules/string_decoder": {
--      "version": "1.3.0",
--      "resolved": "https://registry.npmjs.org/string_decoder/-/string_decoder-1.3.0.tgz",
--      "integrity": "sha512-hkRX8U1WjJFd8LsDJ2yQ/wWWxaopEsABU1XfkM8A+j0+85JAGppt16cr1Whg6KIbb4okU6Mql6BOj+uup/wKeA==",
--      "license": "MIT",
--      "optional": true,
--      "peer": true,
--      "dependencies": {
--        "safe-buffer": "~5.2.0"
--      }
--    },
--    "node_modules/strip-json-comments": {
--      "version": "2.0.1",
--      "resolved": "https://registry.npmjs.org/strip-json-comments/-/strip-json-comments-2.0.1.tgz",
--      "integrity": "sha512-4gB8na07fecVVkOI6Rs4e7T6NOTki5EmL7TUduTs6bu3EdnSycntVJ4re8kgZA+wx9IueI2Y11bfbgwtzuE0KQ==",
--      "license": "MIT",
--      "optional": true,
--      "peer": true,
--      "engines": {
--        "node": ">=0.10.0"
--      }
--    },
--    "node_modules/tar-fs": {
--      "version": "2.1.5",
--      "resolved": "https://registry.npmjs.org/tar-fs/-/tar-fs-2.1.5.tgz",
--      "integrity": "sha512-OboTd8mmMhZDNPV+UjQcK9yKAatXu2aJ+r1w4im1Otd4M4fl2hwvdoXUxIYHFTHWK/3y3FarBP70v3vwmGlOxw==",
--      "license": "MIT",
--      "optional": true,
--      "peer": true,
--      "dependencies": {
--        "chownr": "^1.1.1",
--        "mkdirp-classic": "^0.5.2",
--        "pump": "^3.0.0",
--        "tar-stream": "^2.1.4"
--      }
--    },
--    "node_modules/tar-stream": {
--      "version": "2.2.0",
--      "resolved": "https://registry.npmjs.org/tar-stream/-/tar-stream-2.2.0.tgz",
--      "integrity": "sha512-ujeqbceABgwMZxEJnk2HDY2DlnUZ+9oEcb1KzTVfYHio0UE6dG71n60d8D2I4qNvleWrrXpmjpt7vZeF1LnMZQ==",
--      "license": "MIT",
--      "optional": true,
--      "peer": true,
--      "dependencies": {
--        "bl": "^4.0.3",
--        "end-of-stream": "^1.4.1",
--        "fs-constants": "^1.0.0",
--        "inherits": "^2.0.3",
--        "readable-stream": "^3.1.1"
--      },
--      "engines": {
--        "node": ">=6"
--      }
--    },
      "node_modules/toidentifier": {
        "version": "1.0.1",
        "resolved": "https://registry.npmjs.org/toidentifier/-/toidentifier-1.0.1.tgz",
@@@ -1819,20 +1368,6 @@
          "node": ">=0.6"
        }
      },
--    "node_modules/tunnel-agent": {
--      "version": "0.6.0",
--      "resolved": "https://registry.npmjs.org/tunnel-agent/-/tunnel-agent-0.6.0.tgz",
--      "integrity": "sha512-McnNiV1l8RYeY8tBgEpuodCC1mLUdbSN+CYBL7kJsJNInOP8UjDDEwdk6Mw60vdLLrr5NHKZhMAOSrR2NZuQ+w==",
--      "license": "Apache-2.0",
--      "optional": true,
--      "peer": true,
--      "dependencies": {
--        "safe-buffer": "^5.0.1"
--      },
--      "engines": {
--        "node": "*"
--      }
--    },
      "node_modules/type-is": {
        "version": "1.6.18",
        "resolved": "https://registry.npmjs.org/type-is/-/type-is-1.6.18.tgz",
@@@ -1855,14 +1390,6 @@
          "node": ">= 0.8"
        }
      },
--    "node_modules/util-deprecate": {
--      "version": "1.0.2",
--      "resolved": "https://registry.npmjs.org/util-deprecate/-/util-deprecate-1.0.2.tgz",
--      "integrity": "sha512-EPD5q1uXyFxJpCrLnCc1nHnq3gOa6DZBocAIiI2TaSCA7VCJ1UJDMagCzIkXNsUYfD1daK//LTEQ8xiIbrHtcw==",
--      "license": "MIT",
--      "optional": true,
--      "peer": true
--    },
      "node_modules/utils-merge": {
        "version": "1.0.1",
        "resolved": "https://registry.npmjs.org/utils-merge/-/utils-merge-1.0.1.tgz",
@@@ -1881,14 +1408,6 @@
          "node": ">= 0.8"
        }
      },
--    "node_modules/wrappy": {
--      "version": "1.0.2",
--      "resolved": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz",
--      "integrity": "sha512-l4Sp/DRseor9wL6EvV2+TuQn63dMkPjZ/sp9XkghTEbV9KlPS1xUsZ3u7/IQO4wxtcFB4bgpQPRcR3QCvezPcQ==",
--      "license": "ISC",
--      "optional": true,
--      "peer": true
--    },
      "node_modules/xtend": {
        "version": "4.0.2",
        "resolved": "https://registry.npmjs.org/xtend/-/xtend-4.0.2.tgz",
ddiff --git a/package.json b/package.json
iindex 3c6c5aa..a22a0b1 100644
---- a/package.json
++++ b/package.json
@@@ -29,7 +29,7 @@
      "iovalkey": "^0.4.0",
      "openvibe-contracts": "https://codeload.github.com/OpenVibers/OpenVibe.Contracts/tar.gz/refs/tags/v0.79.0",
      "openvibe-publishing": "https://codeload.github.com/OpenVibers/OpenVibe.Publishing/tar.gz/refs/tags/v1.0.0",
--    "openvibe-sdk": "https://codeload.github.com/OpenVibers/OpenVibe.SDK/tar.gz/refs/tags/v0.25.0",
++    "openvibe-sdk": "https://codeload.github.com/OpenVibers/OpenVibe.SDK/tar.gz/refs/tags/v0.26.0",
      "openvibe-shared": "https://codeload.github.com/OpenVibers/OpenVibe.Shared/tar.gz/refs/tags/v2.3.1",
      "pg": "^8.23.0"
    },
ddiff --git a/server/http/errors.js b/server/http/errors.js
iindex 9f71079..392bb70 100644
---- a/server/http/errors.js
++++ b/server/http/errors.js
@@@ -2,63 +2,26 @@
  
  /**
   * Errors as RFC 9457 problems (contracts errors.problem@1, which keeps the legacy { error } field),
-- * and the small request helpers every router shares.
++ * and the small request helpers every router shares. Built from openvibe-sdk/service (docs/service.md,
++ * the Blog row) so every service answers the same way; the exports stay put so no call site moves.
   */
--const express = require('express');
--const contracts = require('openvibe-contracts');
++const svc = require('openvibe-sdk/service');
  
  /** A refusal with a stable problem code (e.g. 404 'post.not_found'). */
--class ApiError extends Error {
--    constructor(status, code, detail, extra) {
--        super(detail || code);
--        this.name = 'ApiError';
--        this.status = status;
--        this.code = code;
--        this.extra = extra || null;
--    }
--}
++const ApiError = svc.createServiceError('ApiError');
++
++const o = { name: 'Blog API', publishing: true, ServiceError: ApiError };
  
  /** Publishing package errors carry { status, code } too. */
--function asApiError(err) {
--    if (err instanceof ApiError) return err;
--    if (err && err.name === 'PublishingError' && Number.isInteger(err.status)) {
--        const extra = err.code === 'revision.conflict' ? { expected: err.expected, current: err.current } : null;
--        return new ApiError(err.status, err.code, err.message, extra);
--    }
--    if (err instanceof TypeError && err.message && !/Cannot read|is not a function|undefined/.test(err.message)) {
--        return new ApiError(422, 'request.invalid', err.message);
--    }
--    return null;
--}
++const asApiError = (err) => svc.asServiceError(err, o);
  
  /** Wrap a JSON handler: its return value is the body; errors become problems. */
--function run(fn, status = 200) {
--    return async (req, res) => {
--        try {
--            const out = await fn(req, res);
--            if (out === undefined || res.headersSent) return;
--            res.status(typeof status === 'function' ? status(out) : status).json(out);
--        } catch (err) {
--            if (res.headersSent) return;
--            const e = asApiError(err);
--            if (e) return contracts.http.sendProblem(res, e.status, e.code, { detail: e.message, ctx: req.ov, extra: e.extra || undefined });
--            console.error('[Blog API]', err && err.stack ? err.stack : err);
--            contracts.http.sendProblem(res, 500, 'internal.error', { detail: 'Internal error', ctx: req.ov });
--        }
--    };
--}
++const run = (fn, status) => svc.run(fn, status, o);
  
--const jsonParser = express.json({ limit: '512kb' });
--/** JSON body parser whose syntax errors are problems too. */
--function jsonBody(req, res, next) {
--    jsonParser(req, res, (err) => (err ? contracts.http.sendProblem(res, 400, 'request.invalid_json', { detail: 'Malformed JSON body', ctx: req.ov }) : next()));
--}
++/** JSON body parser whose failures are problems too: malformed 400, over the limit 413. */
++const jsonBody = svc.jsonBody();
  
  /** Private, per-viewer responses: never stored by a shared cache, never indexed. */
--function privateNoStore(res) {
--    res.set('Cache-Control', 'private, no-store');
--    res.vary('Cookie');
--    res.vary('Authorization');
--}
++const privateNoStore = svc.privateNoStore;
  
  module.exports = { ApiError, asApiError, run, jsonBody, privateNoStore };
ddiff --git a/server/index.js b/server/index.js
iindex 6659a2c..fecc76f 100644
---- a/server/index.js
++++ b/server/index.js
@@@ -6,32 +6,41 @@
   * client secret are set) and the worker (scheduled publication, media verification).
   */
  const { createApp } = require('./app');
++const { gracefulStop } = require('openvibe-sdk/service');
  
--(async () => {
--const { app, ctx } = await createApp();
--const { config } = ctx;
++/**
++ * The process stop (openvibe-sdk/service, docs/service.md's Blog family): the worker and the
++ * changelog stop taking new work, the HTTP drain runs (defaults 4000/5000), then the outbox settles
++ * and the store closes. Exported so a test can inject `exit` and `signals: false`.
++ */
++function createLifecycle({ server, ctx, exit, signals }) {
++    return gracefulStop({
++        name: 'Blog', server, deadlineExitCode: 0, exit, signals,
++        stop: [() => ctx.worker.stop(), () => ctx.changelog.stop()],
++        close: [() => ctx.outbox.stop(), () => ctx.store.close()],
++    });
++}
  
--const server = app.listen(config.port, config.host, () => {
--    console.log(`[Blog] ${config.nodeEnv} on http://${config.host}:${config.port} → ${config.baseUrl} (db ${ctx.store.db.store})`);
--    console.log(`[Blog] events relay ${ctx.outbox.enabled ? `on → ${config.events.url}` : 'off (events wait in event_outbox)'}; worker ${config.worker.enabled ? 'on' : 'off'}`);
--});
--server.keepAliveTimeout = 65_000;
--ctx.outbox.start();
--ctx.worker.start();
--// The network changelog and patch notes run where the worker runs (one process).
--if (config.worker.enabled) ctx.changelog.start();
++async function start() {
++    const { app, ctx } = await createApp();
++    const { config } = ctx;
  
--function shutdown(signal) {
--    console.log(`[Blog] ${signal}: closing`);
--    ctx.worker.stop();
--    ctx.changelog.stop();
--    server.close(async () => {
--        try { await ctx.outbox.stop(); } catch { /* best effort */ }
--        try { await ctx.store.close(); } catch { /* already closed */ }
--        process.exit(0);
++    const server = app.listen(config.port, config.host, () => {
++        console.log(`[Blog] ${config.nodeEnv} on http://${config.host}:${config.port} → ${config.baseUrl} (db ${ctx.store.db.store})`);
++        console.log(`[Blog] events relay ${ctx.outbox.enabled ? `on → ${config.events.url}` : 'off (events wait in event_outbox)'}; worker ${config.worker.enabled ? 'on' : 'off'}`);
      });
--    setTimeout(() => process.exit(0), 5000).unref();
++    server.keepAliveTimeout = 65_000;
++    ctx.outbox.start();
++    ctx.worker.start();
++    // The network changelog and patch notes run where the worker runs (one process).
++    if (config.worker.enabled) ctx.changelog.start();
++
++    createLifecycle({ server, ctx });
++    return { server, ctx };
++}
++
++if (require.main === module) {
++    start().catch((err) => { console.error('[Blog] failed to start:', err); process.exit(1); });
  }
--process.on('SIGTERM', () => shutdown('SIGTERM'));
--process.on('SIGINT', () => shutdown('SIGINT'));
--})().catch((err) => { console.error('[Blog] failed to start:', err); process.exit(1); });
++
++module.exports = { start, createLifecycle };
ddiff --git a/test/service-kit.test.js b/test/service-kit.test.js
nnew file mode 100644
iindex 0000000..6a97d0e
---- /dev/null
++++ b/test/service-kit.test.js
@@@ -0,0 +1,48 @@
++'use strict';
++/**
++ * openvibe-sdk/service (plan T1): the shared JSON body parser answers 413 for a body over the limit
++ * (the hand-rolled one answered 400 request.invalid_json there), and the entry point's graceful stop
++ * runs its stop and close steps and exits 0.
++ */
++const assert = require('assert');
++const http = require('http');
++const { boot, check, done } = require('./helpers/boot');
++const { createLifecycle } = require('../server/index');
++
++(async () => {
++    const t = await boot();
++    const alice = t.network.addUser('alice', { display_name: 'Alice Writer' });
++
++    await check('a JSON body over 512 kB is 413 request.too_large, not 400 request.invalid_json', async () => {
++        const r = await t.get('/api/v1/blogs', { as: alice, json: { title: 'Big', padding: 'y'.repeat(600 * 1024) } });
++        assert.strictEqual(r.status, 413, r.text);
++        assert.strictEqual(r.json().code, 'request.too_large');
++    });
++
++    await check('the entry point stop runs its stop and close steps, then exits 0', async () => {
++        const steps = [];
++        const spy = (obj, method, label) => {
++            const orig = obj[method].bind(obj);
++            obj[method] = (...a) => { steps.push(label); return orig(...a); };
++        };
++        spy(t.ctx.worker, 'stop', 'worker.stop');
++        spy(t.ctx.changelog, 'stop', 'changelog.stop');
++        spy(t.ctx.outbox, 'stop', 'outbox.stop');
++        spy(t.ctx.store, 'close', 'store.close');
++
++        const server = http.createServer(t.app);
++        await new Promise((resolve) => server.listen(0, '127.0.0.1', resolve));
++
++        const exits = [];
++        const lifecycle = createLifecycle({ server, ctx: t.ctx, exit: (code) => exits.push(code), signals: false });
++        const code = await lifecycle.stop('SIGTERM');
++
++        assert.strictEqual(code, 0);
++        assert.deepStrictEqual(exits, [0]);
++        assert.deepStrictEqual(steps, ['worker.stop', 'changelog.stop', 'outbox.stop', 'store.close']);
++        assert.strictEqual(server.listening, false);
++    });
++
++    await t.close();
++    done();
++})().catch((err) => { console.error(err); process.exit(1); });