fix(qlik): batch SelectValues to avoid Engine abort + drop couv stock metric

Large supplier (4816 codes) triggered Qlik Engine "Request aborted"
(code 15): a single SelectValues over all codes forced the hypercube to
calculate too many rows at once. Now select in 1200-code batches and
accumulate, keeping each calc small. 1417 codes worked before, 4816 did
not - chunking scales to any supplier.

Also remove the "Couverture de stock" network column end-to-end (grid,
types, Qlik clients, cache, schema, db-init), shifting the marge measure
index from 6 to 5 and the hypercube width from 7 to 6.

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

src/lib/qlik-client.ts

@@ -49,7 +49,6 @@ export interface QlikConfig {
     measQteId: string;        // master measure "Quantite N"
     measNbMagId: string;      // master measure "Magasin Ventes Nb N"
     measCaMagId: string;      // master measure "CA par Magasin N"
-    measCouvQteId: string;    // master measure "Couverture de stock Quantite N"
     measMargePctId: string;   // master measure "Marge % N"
     tlsInsecure: boolean;
     timeoutMs: number;
@@ -73,7 +72,6 @@ export function getQlikConfig(): QlikConfig {
         // Master GUIDs de l'app "Magasins Vision Consolidée" (9872ee6e). Si l'engine
         // les refuse (qId court attendu), override via env après discovery.
         measCaMagId: process.env.QLIK_MEAS_CAMAG_ID ?? "16778c00-a4e0-41c7-ab1c-179810d78172",
-        measCouvQteId: process.env.QLIK_MEAS_COUVQTE_ID ?? "dbdf957d-a380-495f-bdc4-3f7b6688f3b5",
         measMargePctId: process.env.QLIK_MEAS_MARGEPCT_ID ?? "ea1e8feb-49ba-4eb3-8db6-72dcfb4c1222",
         tlsInsecure: (process.env.QLIK_TLS_INSECURE ?? "true") === "true",
         timeoutMs: Number(process.env.QLIK_TIMEOUT_MS ?? "60000"),
@@ -87,8 +85,6 @@ export interface NetworkMetric {
     nbMagasinsReseau: number;
     /** CA moyen par magasin (productivité normalisée présence) */
     caParMagasinReseau: number;
-    /** Couverture de stock en quantité (rotation : bas = tourne vite) */
-    couvertureStockReseau: number;
     /** Taux de marge réseau (ratio brut Qlik, ex 0.32 = 32%) */
     margePctReseau: number;
     periode?: string;
@@ -244,10 +240,9 @@ function hyperCubeDef(cfg: QlikConfig, height: number) {
                 { qLibraryId: cfg.measQteId },
                 { qLibraryId: cfg.measNbMagId },
                 { qLibraryId: cfg.measCaMagId },
-                { qLibraryId: cfg.measCouvQteId },
                 { qLibraryId: cfg.measMargePctId },
             ],
-            qInitialDataFetch: [{ qTop: 0, qLeft: 0, qWidth: 7, qHeight: height }],
+            qInitialDataFetch: [{ qTop: 0, qLeft: 0, qWidth: 6, qHeight: height }],
             qSuppressZero: false,
             qSuppressMissing: true,
         },
@@ -270,7 +265,7 @@ export async function fetchNetworkMetrics(
         const openRes = await conn.rpc("OpenDoc", { qDocName: cfg.appNetwork });
         const docHandle = (((openRes.qReturn as Record<string, unknown>) ?? {}).qHandle as number) ?? 1;
 
-        const pageHeight = 1400; // 7 colonnes * 1400 = 9800 cellules max
+        const pageHeight = 1400; // 6 colonnes * 1400 = 8400 cellules max
         const createRes = await conn.rpc("CreateSessionObject", { qProp: hyperCubeDef(cfg, pageHeight) }, docHandle);
         const objHandle = (((createRes.qReturn as Record<string, unknown>) ?? {}).qHandle as number);
 
@@ -278,7 +273,7 @@ export async function fetchNetworkMetrics(
         for (;;) {
             const dataRes = await conn.rpc(
                 "GetHyperCubeData",
-                { qPath: "/qHyperCubeDef", qPages: [{ qTop: top, qLeft: 0, qWidth: 7, qHeight: pageHeight }] },
+                { qPath: "/qHyperCubeDef", qPages: [{ qTop: top, qLeft: 0, qWidth: 6, qHeight: pageHeight }] },
                 objHandle,
             );
             const pages = (dataRes.qDataPages as Array<{ qMatrix?: Matrix }>) ?? [];
@@ -295,8 +290,7 @@ export async function fetchNetworkMetrics(
                     qteReseau: Number(row[2]?.qNum ?? 0) || 0,
                     nbMagasinsReseau: Number(row[3]?.qNum ?? 0) || 0,
                     caParMagasinReseau: Number(row[4]?.qNum ?? 0) || 0,
-                    couvertureStockReseau: Number(row[5]?.qNum ?? 0) || 0,
-                    margePctReseau: Number(row[6]?.qNum ?? 0) || 0,
+                    margePctReseau: Number(row[5]?.qNum ?? 0) || 0,
                 });
             }
             if (matrix.length < pageHeight) break;