perf: remove actif filter, increase batchSize, exclude Y articles without sales

- Remove actif/suspendu filter that caused wrong stats (893€ CA, 249 units)
  by incorrectly excluding products with sales. The parallel pagination
  and bulk ranking fixes are sufficient to handle large suppliers.
- Increase getMensuelByArticles and getReferentielByArticles batchSize
  from 20 to 50, reducing sequential batch iterations by ~2.5x.
- Filter gamme Y products with zero 12-month sales from returned rows.
  Reduces grid size (e.g. S053: 14775→fewer rows) without affecting
  products that actually sold. Y products with sales are preserved.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/lib/api-ff-client.ts

@@ -326,7 +326,7 @@ export async function getMensuelByArticles(
     articles: FfArticle[],
     dateDebut: string,
     dateFin: string,
-    batchSize = 20
+    batchSize = 50
 ): Promise<Map<string, FfMensuelEntry[]>> {
     const result = new Map<string, FfMensuelEntry[]>();
 
@@ -412,7 +412,7 @@ export interface FfReferentiel {
  */
 export async function getReferentielByArticles(
     articles: FfArticle[],
-    batchSize = 20
+    batchSize = 50
 ): Promise<Map<string, FfReferentiel>> {
     const result = new Map<string, FfReferentiel>();