feat(grid): replace ranking/AI/score with Qlik network data

Remove ranking, AI analysis (routes + ai-copilot module), and score-engine
from the grid. Add Qlik Sense network metrics (CA, Qte, nb magasins per
product) joined by code centrale (articles.artcentrale).

- qlik-client.ts: NTLM + ticket SSO auth, QIX hypercube extraction (master items)
- qlik-network-cache.ts + qlik_network_metrics table (db-init): cache layer
- POST /api/qlik/sync?fournisseur=: per-supplier sync into cache
- SyncQlikButton: per-supplier sync, grid reload, last-update date display
- get-product-rows Phase 8: enrich rows with cached network metrics
- heatmap-grid: CA reseau / Qte reseau / Magasins (/270) / % presence columns
- discovery: app 9872ee6e, master items CA N / Quantite N / Magasin Ventes Nb N
- deps: httpntlm, ws

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

package.json

@@ -22,6 +22,7 @@
     "clsx": "^2.1.1",
     "drizzle-orm": "^0.45.1",
     "exceljs": "^4.4.0",
+    "httpntlm": "^1.8.13",
     "jspdf": "^4.2.0",
     "jspdf-autotable": "^5.0.7",
     "lucide-react": "^0.575.0",
@@ -35,6 +36,7 @@
     "react-markdown": "^10.1.0",
     "remark-gfm": "^4.0.1",
     "tailwind-merge": "^3.5.0",
+    "ws": "^8.21.0",
     "xlsx": "^0.18.5",
     "zod": "^4.3.6",
     "zustand": "^5.0.11"
@@ -45,6 +47,7 @@
     "@types/pg": "^8.16.0",
     "@types/react": "^19",
     "@types/react-dom": "^19",
+    "@types/ws": "^8.18.1",
     "drizzle-kit": "^0.31.9",
     "eslint": "^9",
     "eslint-config-next": "16.1.6",