diff --git a/docker-compose.yml b/docker-compose.yml
index 66d9dc9..65ea1ac 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -37,6 +37,8 @@ services:
   sync:
     build: ./sync
     container_name: ff_sync
+    ports:
+      - "3001:3001"
     environment:
       DB_HOST:     ${DB_HOST}
       DB_PORT:     ${DB_PORT:-1433}
diff --git a/sync/index.js b/sync/index.js
index dacff52..127961a 100644
--- a/sync/index.js
+++ b/sync/index.js
@@ -8,27 +8,53 @@ const { syncMouvements }   = require('./tables/mouvements');
 const { syncCommandes }    = require('./tables/commandes');
 const { syncReferentiel }  = require('./tables/referentiel');
 const { closeAll }         = require('./db');
+const {
+  startDashboard, registerSyncFn,
+  setSyncRunning, isSyncRunning,
+  setProgress, clearProgress,
+} = require('./server');
 
 const forceMode = process.argv.includes('--force');
 
+// Groupes dans l'ordre d'exécution
+const STEPS = [
+  { name: 'referentiel',  fn: syncReferentiel },
+  { name: 'articles',     fn: syncArticles },
+  { name: 'fournisseurs', fn: syncFournisseurs },
+  { name: 'stock',        fn: syncStock },
+  { name: 'mouvements',   fn: syncMouvements },
+  { name: 'commandes',    fn: syncCommandes },
+];
+
 async function syncAll(force = false) {
+  if (isSyncRunning()) {
+    console.log('Sync déjà en cours — ignorée.');
+    return;
+  }
+  setSyncRunning(true);
+  clearProgress();
   const start = Date.now();
   console.log(`\n=== SYNC START ${new Date().toISOString()} (force=${force}) ===`);
 
-  // Ordre important : référentiel avant articles, articles avant stock/mouvements
-  await syncReferentiel(force);
-  await syncArticles(force);
-  await syncFournisseurs(force);
-  await syncStock(force);
-  await syncMouvements(force);
-  await syncCommandes(force);
+  try {
+    for (let i = 0; i < STEPS.length; i++) {
+      const { name, fn } = STEPS[i];
+      setProgress(name, i + 1);
+      console.log(`[${i + 1}/${STEPS.length}] Sync ${name}…`);
+      await fn(force);
+    }
+  } finally {
+    setSyncRunning(false);
+    clearProgress();
+  }
 
   const elapsed = ((Date.now() - start) / 1000).toFixed(1);
   console.log(`=== SYNC DONE en ${elapsed}s ===\n`);
 }
 
+registerSyncFn(syncAll);
+
 if (forceMode) {
-  // Lancement manuel : node index.js --force
   console.log('Mode force : sync complète en cours...');
   syncAll(true)
     .then(() => closeAll())
@@ -38,7 +64,7 @@ if (forceMode) {
       process.exit(1);
     });
 } else {
-  // Mode daemon : sync nightly à 3h00
+  startDashboard();
   console.log('Service sync démarré — cron: 0 3 * * * (3h00 chaque nuit)');
   cron.schedule('0 3 * * *', () => {
     syncAll(false).catch(err => console.error('Erreur cron sync:', err.message));
diff --git a/sync/package-lock.json b/sync/package-lock.json
index f98e870..dc6625f 100644
--- a/sync/package-lock.json
+++ b/sync/package-lock.json
@@ -9,6 +9,7 @@
       "version": "1.0.0",
       "license": "ISC",
       "dependencies": {
+        "express": "^5.1.0",
         "mssql": "^12.2.0",
         "node-cron": "^3.0.3",
         "pg": "^8.13.3"
@@ -330,6 +331,19 @@
         "node": ">=6.5"
       }
     },
+    "node_modules/accepts": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/accepts/-/accepts-2.0.0.tgz",
+      "integrity": "sha512-5cvg6CtKwfgdmVqY1WIiXKc3Q1bkRqGLi+2W/6ao+6Y7gu/RCwRuAhGEzh5B4KlszSuTLgZYuqFqo5bImjNKng==",
+      "license": "MIT",
+      "dependencies": {
+        "mime-types": "^3.0.0",
+        "negotiator": "^1.0.0"
+      },
+      "engines": {
+        "node": ">= 0.6"
+      }
+    },
     "node_modules/agent-base": {
       "version": "7.1.4",
       "resolved": "https://registry.npmjs.org/agent-base/-/agent-base-7.1.4.tgz",
@@ -371,6 +385,30 @@
         "readable-stream": "^4.2.0"
       }
     },
+    "node_modules/body-parser": {
+      "version": "2.2.2",
+      "resolved": "https://registry.npmjs.org/body-parser/-/body-parser-2.2.2.tgz",
+      "integrity": "sha512-oP5VkATKlNwcgvxi0vM0p/D3n2C3EReYVX+DNYs5TjZFn/oQt2j+4sVJtSMr18pdRr8wjTcBl6LoV+FUwzPmNA==",
+      "license": "MIT",
+      "dependencies": {
+        "bytes": "^3.1.2",
+        "content-type": "^1.0.5",
+        "debug": "^4.4.3",
+        "http-errors": "^2.0.0",
+        "iconv-lite": "^0.7.0",
+        "on-finished": "^2.4.1",
+        "qs": "^6.14.1",
+        "raw-body": "^3.0.1",
+        "type-is": "^2.0.1"
+      },
+      "engines": {
+        "node": ">=18"
+      },
+      "funding": {
+        "type": "opencollective",
+        "url": "https://opencollective.com/express"
+      }
+    },
     "node_modules/buffer": {
       "version": "6.0.3",
       "resolved": "https://registry.npmjs.org/buffer/-/buffer-6.0.3.tgz",
@@ -416,6 +454,44 @@
         "url": "https://github.com/sponsors/sindresorhus"
       }
     },
+    "node_modules/bytes": {
+      "version": "3.1.2",
+      "resolved": "https://registry.npmjs.org/bytes/-/bytes-3.1.2.tgz",
+      "integrity": "sha512-/Nf7TyzTx6S3yRJObOAV7956r8cr2+Oj8AC5dt8wSP3BQAoeX58NoHyCU8P8zGkNXStjTSi6fzO6F0pBdcYbEg==",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.8"
+      }
+    },
+    "node_modules/call-bind-apply-helpers": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/call-bind-apply-helpers/-/call-bind-apply-helpers-1.0.2.tgz",
+      "integrity": "sha512-Sp1ablJ0ivDkSzjcaJdxEunN5/XvksFJ2sMBFfq6x0ryhQV/2b/KwFe21cMpmHtPOSij8K99/wSfoEuTObmuMQ==",
+      "license": "MIT",
+      "dependencies": {
+        "es-errors": "^1.3.0",
+        "function-bind": "^1.1.2"
+      },
+      "engines": {
+        "node": ">= 0.4"
+      }
+    },
+    "node_modules/call-bound": {
+      "version": "1.0.4",
+      "resolved": "https://registry.npmjs.org/call-bound/-/call-bound-1.0.4.tgz",
+      "integrity": "sha512-+ys997U96po4Kx/ABpBCqhA9EuxJaQWDQg7295H4hBphv3IZg0boBKuwYpt4YXp6MZ5AmZQnU/tyMTlRpaSejg==",
+      "license": "MIT",
+      "dependencies": {
+        "call-bind-apply-helpers": "^1.0.2",
+        "get-intrinsic": "^1.3.0"
+      },
+      "engines": {
+        "node": ">= 0.4"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/ljharb"
+      }
+    },
     "node_modules/commander": {
       "version": "11.1.0",
       "resolved": "https://registry.npmjs.org/commander/-/commander-11.1.0.tgz",
@@ -425,6 +501,46 @@
         "node": ">=16"
       }
     },
+    "node_modules/content-disposition": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/content-disposition/-/content-disposition-1.0.1.tgz",
+      "integrity": "sha512-oIXISMynqSqm241k6kcQ5UwttDILMK4BiurCfGEREw6+X9jkkpEe5T9FZaApyLGGOnFuyMWZpdolTXMtvEJ08Q==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=18"
+      },
+      "funding": {
+        "type": "opencollective",
+        "url": "https://opencollective.com/express"
+      }
+    },
+    "node_modules/content-type": {
+      "version": "1.0.5",
+      "resolved": "https://registry.npmjs.org/content-type/-/content-type-1.0.5.tgz",
+      "integrity": "sha512-nTjqfcBFEipKdXCv4YDQWCfmcLZKm81ldF0pAopTvyrFGVbcR6P/VAAd5G7N+0tTr8QqiU0tFadD6FK4NtJwOA==",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.6"
+      }
+    },
+    "node_modules/cookie": {
+      "version": "0.7.2",
+      "resolved": "https://registry.npmjs.org/cookie/-/cookie-0.7.2.tgz",
+      "integrity": "sha512-yki5XnKuf750l50uGTllt6kKILY4nQ1eNIQatoXEByZ5dWgnKqbnqmTrBE5B4N7lrMJKQ2ytWMiTO2o0v6Ew/w==",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.6"
+      }
+    },
+    "node_modules/cookie-signature": {
+      "version": "1.2.2",
+      "resolved": "https://registry.npmjs.org/cookie-signature/-/cookie-signature-1.2.2.tgz",
+      "integrity": "sha512-D76uU73ulSXrD1UXF4KE2TMxVVwhsnCgfAyTg9k8P6KGZjlXKrOLe4dJQKI3Bxi5wjesZoFXJWElNWBjPZMbhg==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=6.6.0"
+      }
+    },
     "node_modules/debug": {
       "version": "4.4.3",
       "resolved": "https://registry.npmjs.org/debug/-/debug-4.4.3.tgz",
@@ -482,6 +598,29 @@
         "url": "https://github.com/sponsors/sindresorhus"
       }
     },
+    "node_modules/depd": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/depd/-/depd-2.0.0.tgz",
+      "integrity": "sha512-g7nH6P6dyDioJogAAGprGpCtVImJhpPk/roCzdb3fIh61/s/nPsfR6onyMwkCAR/OlC3yBC0lESvUoQEAssIrw==",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.8"
+      }
+    },
+    "node_modules/dunder-proto": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/dunder-proto/-/dunder-proto-1.0.1.tgz",
+      "integrity": "sha512-KIN/nDJBQRcXw0MLVhZE9iQHmG68qAVIBg9CqmUYjmQIhgij9U5MFvrqkUL5FbtyyzZuOeOt0zdeRe4UY7ct+A==",
+      "license": "MIT",
+      "dependencies": {
+        "call-bind-apply-helpers": "^1.0.1",
+        "es-errors": "^1.3.0",
+        "gopd": "^1.2.0"
+      },
+      "engines": {
+        "node": ">= 0.4"
+      }
+    },
     "node_modules/ecdsa-sig-formatter": {
       "version": "1.0.11",
       "resolved": "https://registry.npmjs.org/ecdsa-sig-formatter/-/ecdsa-sig-formatter-1.0.11.tgz",
@@ -491,6 +630,66 @@
         "safe-buffer": "^5.0.1"
       }
     },
+    "node_modules/ee-first": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/ee-first/-/ee-first-1.1.1.tgz",
+      "integrity": "sha512-WMwm9LhRUo+WUaRN+vRuETqG89IgZphVSNkdFgeb6sS/E4OrDIN7t48CAewSHXc6C8lefD8KKfr5vY61brQlow==",
+      "license": "MIT"
+    },
+    "node_modules/encodeurl": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/encodeurl/-/encodeurl-2.0.0.tgz",
+      "integrity": "sha512-Q0n9HRi4m6JuGIV1eFlmvJB7ZEVxu93IrMyiMsGC0lrMJMWzRgx6WGquyfQgZVb31vhGgXnfmPNNXmxnOkRBrg==",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.8"
+      }
+    },
+    "node_modules/es-define-property": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/es-define-property/-/es-define-property-1.0.1.tgz",
+      "integrity": "sha512-e3nRfgfUZ4rNGL232gUgX06QNyyez04KdjFrF+LTRoOXmrOgFKDg4BCdsjW8EnT69eqdYGmRpJwiPVYNrCaW3g==",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.4"
+      }
+    },
+    "node_modules/es-errors": {
+      "version": "1.3.0",
+      "resolved": "https://registry.npmjs.org/es-errors/-/es-errors-1.3.0.tgz",
+      "integrity": "sha512-Zf5H2Kxt2xjTvbJvP2ZWLEICxA6j+hAmMzIlypy4xcBg1vKVnx89Wy0GbS+kf5cwCVFFzdCFh2XSCFNULS6csw==",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.4"
+      }
+    },
+    "node_modules/es-object-atoms": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/es-object-atoms/-/es-object-atoms-1.1.1.tgz",
+      "integrity": "sha512-FGgH2h8zKNim9ljj7dankFPcICIK9Cp5bm+c2gQSYePhpaG5+esrLODihIorn+Pe6FGJzWhXQotPv73jTaldXA==",
+      "license": "MIT",
+      "dependencies": {
+        "es-errors": "^1.3.0"
+      },
+      "engines": {
+        "node": ">= 0.4"
+      }
+    },
+    "node_modules/escape-html": {
+      "version": "1.0.3",
+      "resolved": "https://registry.npmjs.org/escape-html/-/escape-html-1.0.3.tgz",
+      "integrity": "sha512-NiSupZ4OeuGwr68lGIeym/ksIZMJodUGOSCZ/FSnTxcrekbvqrgdUxlJOMpijaKZVjAJrWrGs/6Jy8OMuyj9ow==",
+      "license": "MIT"
+    },
+    "node_modules/etag": {
+      "version": "1.8.1",
+      "resolved": "https://registry.npmjs.org/etag/-/etag-1.8.1.tgz",
+      "integrity": "sha512-aIL5Fx7mawVa300al2BnEE4iNvo1qETxLrPI/o05L7z6go7fCw1J6EQmbK4FmJ2AS7kgVF/KEZWufBfdClMcPg==",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.6"
+      }
+    },
     "node_modules/event-target-shim": {
       "version": "5.0.1",
       "resolved": "https://registry.npmjs.org/event-target-shim/-/event-target-shim-5.0.1.tgz",
@@ -509,6 +708,190 @@
         "node": ">=0.8.x"
       }
     },
+    "node_modules/express": {
+      "version": "5.2.1",
+      "resolved": "https://registry.npmjs.org/express/-/express-5.2.1.tgz",
+      "integrity": "sha512-hIS4idWWai69NezIdRt2xFVofaF4j+6INOpJlVOLDO8zXGpUVEVzIYk12UUi2JzjEzWL3IOAxcTubgz9Po0yXw==",
+      "license": "MIT",
+      "dependencies": {
+        "accepts": "^2.0.0",
+        "body-parser": "^2.2.1",
+        "content-disposition": "^1.0.0",
+        "content-type": "^1.0.5",
+        "cookie": "^0.7.1",
+        "cookie-signature": "^1.2.1",
+        "debug": "^4.4.0",
+        "depd": "^2.0.0",
+        "encodeurl": "^2.0.0",
+        "escape-html": "^1.0.3",
+        "etag": "^1.8.1",
+        "finalhandler": "^2.1.0",
+        "fresh": "^2.0.0",
+        "http-errors": "^2.0.0",
+        "merge-descriptors": "^2.0.0",
+        "mime-types": "^3.0.0",
+        "on-finished": "^2.4.1",
+        "once": "^1.4.0",
+        "parseurl": "^1.3.3",
+        "proxy-addr": "^2.0.7",
+        "qs": "^6.14.0",
+        "range-parser": "^1.2.1",
+        "router": "^2.2.0",
+        "send": "^1.1.0",
+        "serve-static": "^2.2.0",
+        "statuses": "^2.0.1",
+        "type-is": "^2.0.1",
+        "vary": "^1.1.2"
+      },
+      "engines": {
+        "node": ">= 18"
+      },
+      "funding": {
+        "type": "opencollective",
+        "url": "https://opencollective.com/express"
+      }
+    },
+    "node_modules/finalhandler": {
+      "version": "2.1.1",
+      "resolved": "https://registry.npmjs.org/finalhandler/-/finalhandler-2.1.1.tgz",
+      "integrity": "sha512-S8KoZgRZN+a5rNwqTxlZZePjT/4cnm0ROV70LedRHZ0p8u9fRID0hJUZQpkKLzro8LfmC8sx23bY6tVNxv8pQA==",
+      "license": "MIT",
+      "dependencies": {
+        "debug": "^4.4.0",
+        "encodeurl": "^2.0.0",
+        "escape-html": "^1.0.3",
+        "on-finished": "^2.4.1",
+        "parseurl": "^1.3.3",
+        "statuses": "^2.0.1"
+      },
+      "engines": {
+        "node": ">= 18.0.0"
+      },
+      "funding": {
+        "type": "opencollective",
+        "url": "https://opencollective.com/express"
+      }
+    },
+    "node_modules/forwarded": {
+      "version": "0.2.0",
+      "resolved": "https://registry.npmjs.org/forwarded/-/forwarded-0.2.0.tgz",
+      "integrity": "sha512-buRG0fpBtRHSTCOASe6hD258tEubFoRLb4ZNA6NxMVHNw2gOcwHo9wyablzMzOA5z9xA9L1KNjk/Nt6MT9aYow==",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.6"
+      }
+    },
+    "node_modules/fresh": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/fresh/-/fresh-2.0.0.tgz",
+      "integrity": "sha512-Rx/WycZ60HOaqLKAi6cHRKKI7zxWbJ31MhntmtwMoaTeF7XFH9hhBp8vITaMidfljRQ6eYWCKkaTK+ykVJHP2A==",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.8"
+      }
+    },
+    "node_modules/function-bind": {
+      "version": "1.1.2",
+      "resolved": "https://registry.npmjs.org/function-bind/-/function-bind-1.1.2.tgz",
+      "integrity": "sha512-7XHNxH7qX9xG5mIwxkhumTox/MIRNcOgDrxWsMt2pAr23WHp6MrRlN7FBSFpCpr+oVO0F744iUgR82nJMfG2SA==",
+      "license": "MIT",
+      "funding": {
+        "url": "https://github.com/sponsors/ljharb"
+      }
+    },
+    "node_modules/get-intrinsic": {
+      "version": "1.3.0",
+      "resolved": "https://registry.npmjs.org/get-intrinsic/-/get-intrinsic-1.3.0.tgz",
+      "integrity": "sha512-9fSjSaos/fRIVIp+xSJlE6lfwhES7LNtKaCBIamHsjr2na1BiABJPo0mOjjz8GJDURarmCPGqaiVg5mfjb98CQ==",
+      "license": "MIT",
+      "dependencies": {
+        "call-bind-apply-helpers": "^1.0.2",
+        "es-define-property": "^1.0.1",
+        "es-errors": "^1.3.0",
+        "es-object-atoms": "^1.1.1",
+        "function-bind": "^1.1.2",
+        "get-proto": "^1.0.1",
+        "gopd": "^1.2.0",
+        "has-symbols": "^1.1.0",
+        "hasown": "^2.0.2",
+        "math-intrinsics": "^1.1.0"
+      },
+      "engines": {
+        "node": ">= 0.4"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/ljharb"
+      }
+    },
+    "node_modules/get-proto": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/get-proto/-/get-proto-1.0.1.tgz",
+      "integrity": "sha512-sTSfBjoXBp89JvIKIefqw7U2CCebsc74kiY6awiGogKtoSGbgjYE/G/+l9sF3MWFPNc9IcoOC4ODfKHfxFmp0g==",
+      "license": "MIT",
+      "dependencies": {
+        "dunder-proto": "^1.0.1",
+        "es-object-atoms": "^1.0.0"
+      },
+      "engines": {
+        "node": ">= 0.4"
+      }
+    },
+    "node_modules/gopd": {
+      "version": "1.2.0",
+      "resolved": "https://registry.npmjs.org/gopd/-/gopd-1.2.0.tgz",
+      "integrity": "sha512-ZUKRh6/kUFoAiTAtTYPZJ3hw9wNxx+BIBOijnlG9PnrJsCcSjs1wyyD6vJpaYtgnzDrKYRSqf3OO6Rfa93xsRg==",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.4"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/ljharb"
+      }
+    },
+    "node_modules/has-symbols": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/has-symbols/-/has-symbols-1.1.0.tgz",
+      "integrity": "sha512-1cDNdwJ2Jaohmb3sg4OmKaMBwuC48sYni5HUw2DvsC8LjGTLK9h+eb1X6RyuOHe4hT0ULCW68iomhjUoKUqlPQ==",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.4"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/ljharb"
+      }
+    },
+    "node_modules/hasown": {
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+      "license": "MIT",
+      "dependencies": {
+        "content-type": "^1.0.5",
+        "media-typer": "^1.1.0",
+        "mime-types": "^3.0.0"
+      },
+      "engines": {
+        "node": ">= 0.6"
+      }
+    },
     "node_modules/undici-types": {
       "version": "7.18.2",
       "resolved": "https://registry.npmjs.org/undici-types/-/undici-types-7.18.2.tgz",
       "integrity": "sha512-AsuCzffGHJybSaRrmr5eHr81mwJU3kjw6M+uprWvCXiNeN9SOGwQ3Jn8jb8m3Z6izVgknn1R0FTCEAP2QrLY/w==",
       "license": "MIT"
     },
+    "node_modules/unpipe": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/unpipe/-/unpipe-1.0.0.tgz",
+      "integrity": "sha512-pjy2bYhSsufwWlKwPc+l3cN7+wuJlK6uz0YdJEOlQDbl6jo/YlPi4mb8agUkVC8BF7V8NuzeyPNqRksA3hztKQ==",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.8"
+      }
+    },
     "node_modules/uuid": {
       "version": "8.3.2",
       "resolved": "https://registry.npmjs.org/uuid/-/uuid-8.3.2.tgz",
@@ -1055,6 +1801,21 @@
         "uuid": "dist/bin/uuid"
       }
     },
+    "node_modules/vary": {
+      "version": "1.1.2",
+      "resolved": "https://registry.npmjs.org/vary/-/vary-1.1.2.tgz",
+      "integrity": "sha512-BNGbWLfd0eUPabhkXUVm0j8uuvREyTh5ovRa/dyow/BqAbZJyC+5fU+IzQOzmAKzYqYRAISoRhdQr3eIZ/PXqg==",
+      "license": "MIT",
+      "engines": {
+        "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"
+    },
     "node_modules/wsl-utils": {
       "version": "0.1.0",
       "resolved": "https://registry.npmjs.org/wsl-utils/-/wsl-utils-0.1.0.tgz",
diff --git a/sync/package.json b/sync/package.json
index 4ea8c9e..fbecca2 100644
--- a/sync/package.json
+++ b/sync/package.json
@@ -6,6 +6,7 @@
   "license": "ISC",
   "type": "commonjs",
   "dependencies": {
+    "express": "^5.1.0",
     "mssql": "^12.2.0",
     "node-cron": "^3.0.3",
     "pg": "^8.13.3"
diff --git a/sync/server.js b/sync/server.js
new file mode 100644
index 0000000..7123abf
--- /dev/null
+++ b/sync/server.js
@@ -0,0 +1,295 @@
+/**
+ * Tableau de bord web du service sync — port 3001
+ */
+'use strict';
+const express = require('express');
+const { getPg } = require('./db');
+
+const app  = express();
+const PORT = process.env.SYNC_DASHBOARD_PORT || 3001;
+
+// ── État global ──────────────────────────────────────────────
+const state = {
+  running:   false,
+  progress:  null,   // { current, index, total, startedAt, tables }
+  lastError: null,
+};
+
+const TABLES_ORDER = [
+  'referentiel', 'articles', 'fournisseurs', 'stock', 'mouvements', 'commandes'
+];
+const TABLES_TOTAL = TABLES_ORDER.length;
+
+// Buffer des 300 dernières lignes de log
+const logBuffer = [];
+function pushLog(msg, level = 'info') {
+  logBuffer.push({ ts: new Date().toISOString(), msg, level });
+  if (logBuffer.length > 300) logBuffer.shift();
+}
+
+// Surcharge console
+const _log = console.log.bind(console);
+const _err = console.error.bind(console);
+console.log   = (...a) => { pushLog(a.join(' '), 'info');  _log(...a); };
+console.error = (...a) => { pushLog(a.join(' '), 'error'); _err(...a); };
+
+// Appelé depuis index.js avant/après chaque groupe de tables
+function setProgress(tableName, index) {
+  state.progress = {
+    current:   tableName,
+    index:     index,          // 1-based
+    total:     TABLES_TOTAL,
+    pct:       Math.round((index / TABLES_TOTAL) * 100),
+    startedAt: state.progress?.startedAt || new Date().toISOString(),
+  };
+}
+function clearProgress() {
+  state.progress = null;
+}
+
+// Fn sync enregistrée depuis index.js
+let syncAllFn = null;
+function registerSyncFn(fn) { syncAllFn = fn; }
+function setSyncRunning(val) { state.running = val; }
+function isSyncRunning()     { return state.running; }
+
+// ── Routes API ───────────────────────────────────────────────
+app.use(express.json());
+
+// Statut complet (tables + progression en cours)
+app.get('/api/status', async (req, res) => {
+  try {
+    const pg = getPg();
+    const { rows } = await pg.query(
+      `SELECT table_name, last_sync, rows_synced, status, error_message
+       FROM sync_log ORDER BY table_name`
+    );
+    res.json({
+      running:  state.running,
+      progress: state.progress,
+      tables:   rows,
+    });
+  } catch (err) {
+    res.status(500).json({ error: err.message });
+  }
+});
+
+// Logs en mémoire
+app.get('/api/logs', (req, res) => {
+  const limit = parseInt(req.query.limit) || 150;
+  res.json(logBuffer.slice(-limit));
+});
+
+// Prochain cron
+app.get('/api/next', (req, res) => {
+  const now  = new Date();
+  const next = new Date(now);
+  next.setHours(3, 0, 0, 0);
+  if (next <= now) next.setDate(next.getDate() + 1);
+  res.json({ next: next.toISOString() });
+});
+
+// Déclencher sync manuelle
+app.post('/api/sync/run', async (req, res) => {
+  if (state.running) return res.status(409).json({ error: 'Sync déjà en cours' });
+  if (!syncAllFn)    return res.status(500).json({ error: 'syncAll non enregistré' });
+  res.json({ message: 'Sync lancée' });
+  syncAllFn(true).catch(err => console.error('Erreur sync manuelle:', err.message));
+});
+
+// ── Dashboard HTML ───────────────────────────────────────────
+app.get('/', (req, res) => res.send(HTML));
+
+function startDashboard() {
+  app.listen(PORT, '0.0.0.0', () => {
+    console.log(`Dashboard sync : http://0.0.0.0:${PORT}`);
+  });
+}
+
+module.exports = { startDashboard, registerSyncFn, setSyncRunning, isSyncRunning, setProgress, clearProgress };
+
+// ── HTML inline ──────────────────────────────────────────────
+const HTML = `<!DOCTYPE html>
+<html lang="fr">
+<head>
+<meta charset="UTF-8">
+<meta name="viewport" content="width=device-width,initial-scale=1">
+<title>Sync Dashboard</title>
+<style>
+*{box-sizing:border-box;margin:0;padding:0}
+body{font-family:system-ui,sans-serif;background:#0f172a;color:#e2e8f0;min-height:100vh}
+header{background:#1e293b;padding:1rem 2rem;display:flex;align-items:center;gap:1rem;border-bottom:1px solid #334155}
+header h1{font-size:1.2rem;font-weight:700;color:#f8fafc}
+.badge{font-size:.75rem;padding:.25rem .6rem;border-radius:9999px;font-weight:600}
+.badge.idle{background:#1e3a5f;color:#93c5fd}
+.badge.running{background:#713f12;color:#fde68a;animation:pulse 1s infinite}
+@keyframes pulse{0%,100%{opacity:1}50%{opacity:.5}}
+main{padding:1.5rem 2rem;max-width:1100px;margin:0 auto}
+.actions{display:flex;align-items:center;gap:1rem;flex-wrap:wrap;margin-bottom:1.5rem}
+button{padding:.55rem 1.3rem;border:none;border-radius:.5rem;cursor:pointer;font-weight:600;font-size:.85rem;transition:.15s}
+#btnSync{background:#2563eb;color:#fff}
+#btnSync:hover:not(:disabled){background:#1d4ed8}
+#btnSync:disabled{opacity:.4;cursor:not-allowed}
+#btnRefresh{background:#334155;color:#cbd5e1}
+#btnRefresh:hover{background:#475569}
+#nextSync{font-size:.8rem;color:#64748b;margin-left:auto}
+#msg{font-size:.82rem;padding:.35rem .75rem;border-radius:.4rem;display:none}
+#msg.ok{background:#14532d;color:#86efac;display:inline-block}
+#msg.err{background:#450a0a;color:#fca5a5;display:inline-block}
+
+/* Progress */
+#progressBox{background:#1e293b;border:1px solid #334155;border-radius:.75rem;padding:1rem 1.25rem;margin-bottom:1.5rem;display:none}
+#progressBox.visible{display:block}
+.progress-header{display:flex;justify-content:space-between;margin-bottom:.6rem;font-size:.85rem}
+.progress-bar-bg{background:#0f172a;border-radius:9999px;height:12px;overflow:hidden}
+.progress-bar-fill{height:100%;background:linear-gradient(90deg,#2563eb,#7c3aed);border-radius:9999px;transition:width .5s ease}
+.progress-detail{margin-top:.5rem;font-size:.78rem;color:#64748b}
+
+.grid{display:grid;grid-template-columns:1fr 1fr;gap:1.5rem}
+@media(max-width:700px){.grid{grid-template-columns:1fr}}
+.card{background:#1e293b;border:1px solid #334155;border-radius:.75rem;overflow:hidden}
+.card-header{padding:.65rem 1rem;background:#0f172a;border-bottom:1px solid #334155;font-size:.75rem;font-weight:600;text-transform:uppercase;letter-spacing:.05em;color:#94a3b8}
+table{width:100%;border-collapse:collapse;font-size:.85rem}
+th{padding:.55rem 1rem;text-align:left;color:#64748b;font-weight:500;border-bottom:1px solid #334155}
+td{padding:.55rem 1rem;border-bottom:1px solid #1e293b}
+tr:last-child td{border-bottom:none}
+.ok{color:#4ade80}.err{color:#f87171}
+.log-box{height:320px;overflow-y:auto;font-family:monospace;font-size:.76rem;padding:.75rem 1rem;background:#0a0f1e;color:#a5f3fc;line-height:1.7}
+.log-line.error{color:#f87171}
+.ts{color:#475569;margin-right:.5rem;user-select:none}
+#lastRefresh{font-size:.75rem;color:#475569}
+</style>
+</head>
+<body>
+<header>
+  <h1>⚡ Sync Dashboard</h1>
+  <span id="statusBadge" class="badge idle">Idle</span>
+  <span id="lastRefresh" style="margin-left:auto"></span>
+</header>
+<main>
+  <div class="actions">
+    <button id="btnSync" onclick="runSync()">▶ Lancer sync maintenant</button>
+    <button id="btnRefresh" onclick="refresh()">↺ Rafraîchir</button>
+    <span id="msg"></span>
+    <span id="nextSync"></span>
+  </div>
+
+  <!-- Barre de progression -->
+  <div id="progressBox">
+    <div class="progress-header">
+      <span id="progressLabel">Synchronisation en cours…</span>
+      <span id="progressPct" style="font-weight:700;color:#93c5fd">0%</span>
+    </div>
+    <div class="progress-bar-bg">
+      <div class="progress-bar-fill" id="progressBar" style="width:0%"></div>
+    </div>
+    <div class="progress-detail" id="progressDetail"></div>
+  </div>
+
+  <div class="grid">
+    <div class="card" style="grid-column:1/-1">
+      <div class="card-header">Statut des tables</div>
+      <table>
+        <thead><tr><th>Table</th><th>Dernière sync</th><th>Lignes</th><th>Statut</th></tr></thead>
+        <tbody id="tableBody"><tr><td colspan="4" style="color:#475569;padding:1rem">Chargement…</td></tr></tbody>
+      </table>
+    </div>
+    <div class="card" style="grid-column:1/-1">
+      <div class="card-header">Logs</div>
+      <div class="log-box" id="logBox">Chargement…</div>
+    </div>
+  </div>
+</main>
+<script>
+let autoScroll = true;
+
+function fmtDate(iso){
+  if(!iso) return '—';
+  return new Date(iso).toLocaleString('fr-FR');
+}
+
+function renderProgress(progress, running){
+  const box = document.getElementById('progressBox');
+  if(!running || !progress){ box.classList.remove('visible'); return; }
+  box.classList.add('visible');
+  document.getElementById('progressBar').style.width   = progress.pct + '%';
+  document.getElementById('progressPct').textContent   = progress.pct + '%';
+  document.getElementById('progressLabel').textContent =
+    'Sync en cours — table ' + progress.index + '/' + progress.total;
+  const elapsed = Math.round((Date.now() - new Date(progress.startedAt)) / 1000);
+  document.getElementById('progressDetail').textContent =
+    'En cours : ' + progress.current + ' | Durée : ' + elapsed + 's';
+}
+
+function renderStatus(data){
+  const badge = document.getElementById('statusBadge');
+  badge.textContent = data.running ? 'En cours…' : 'Idle';
+  badge.className   = 'badge ' + (data.running ? 'running' : 'idle');
+  document.getElementById('btnSync').disabled = data.running;
+  renderProgress(data.progress, data.running);
+
+  if(!data.tables.length){
+    document.getElementById('tableBody').innerHTML =
+      '<tr><td colspan="4" style="color:#475569;padding:1rem">Aucune sync — cliquez sur Lancer sync maintenant</td></tr>';
+    return;
+  }
+  document.getElementById('tableBody').innerHTML = data.tables.map(t => \`
+    <tr>
+      <td><strong>\${t.table_name}</strong></td>
+      <td>\${fmtDate(t.last_sync)}</td>
+      <td>\${t.rows_synced ?? '—'}</td>
+      <td class="\${t.status==='ok'?'ok':'err'}">\${t.status ?? '—'}\${t.error_message?' — '+t.error_message:''}</td>
+    </tr>
+  \`).join('');
+}
+
+function renderLogs(logs){
+  const box = document.getElementById('logBox');
+  if(!logs.length){ box.textContent = 'Aucun log.'; return; }
+  const atBottom = box.scrollTop + box.clientHeight >= box.scrollHeight - 10;
+  box.innerHTML = logs.map(l => \`
+    <div class="log-line \${l.level}">
+      <span class="ts">\${new Date(l.ts).toLocaleTimeString('fr-FR')}</span>\${l.msg}
+    </div>
+  \`).join('');
+  if(atBottom) box.scrollTop = box.scrollHeight;
+}
+
+async function refresh(){
+  try{
+    const [s, logs, next] = await Promise.all([
+      fetch('/api/status').then(r=>r.json()),
+      fetch('/api/logs?limit=150').then(r=>r.json()),
+      fetch('/api/next').then(r=>r.json()),
+    ]);
+    renderStatus(s);
+    renderLogs(logs);
+    document.getElementById('nextSync').textContent = 'Prochaine sync auto : ' + fmtDate(next.next);
+    document.getElementById('lastRefresh').textContent = 'Mis à jour ' + new Date().toLocaleTimeString('fr-FR');
+  } catch(e){
+    console.error(e);
+  }
+}
+
+async function runSync(){
+  const msg = document.getElementById('msg');
+  msg.style.display = 'none';
+  const r    = await fetch('/api/sync/run',{method:'POST'});
+  const data = await r.json();
+  msg.textContent = r.ok ? '✓ ' + data.message : '✗ ' + data.error;
+  msg.className   = r.ok ? 'ok' : 'err';
+  setTimeout(()=>{ msg.style.display='none'; }, 5000);
+  setTimeout(refresh, 800);
+}
+
+// Refresh rapide (5s) quand sync en cours, lent (15s) sinon
+let timer;
+async function loop(){
+  await refresh();
+  const s = await fetch('/api/status').then(r=>r.json()).catch(()=>({}));
+  timer = setTimeout(loop, s.running ? 3000 : 15000);
+}
+loop();
+</script>
+</body>
+</html>`;