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>

src/types/httpntlm.d.ts

@@ -0,0 +1,23 @@
+declare module "httpntlm" {
+    interface NtlmOptions {
+        url: string;
+        username: string;
+        password: string;
+        domain?: string;
+        workstation?: string;
+        headers?: Record<string, string>;
+        rejectUnauthorized?: boolean;
+        [key: string]: unknown;
+    }
+    interface NtlmResponse {
+        statusCode: number;
+        headers: Record<string, unknown>;
+        body: string;
+    }
+    type Cb = (err: Error | null, res: NtlmResponse) => void;
+    const httpntlm: {
+        get(opts: NtlmOptions, cb: Cb): void;
+        post(opts: NtlmOptions, cb: Cb): void;
+    };
+    export default httpntlm;
+}