feat: add pg-ff-client to replace HTTP API calls with bulk PostgreSQL queries

src/app/api/test-db/route.ts

@@ -0,0 +1,30 @@
+import { NextResponse } from 'next/server';
+import { db } from '@/db';
+import { sql } from 'drizzle-orm';
+import { pgGetStockForCodeins } from '@/lib/pg-ff-client';
+
+export async function GET(request: Request) {
+    try {
+        const { searchParams } = new URL(request.url);
+        const codein = searchParams.get('codein') || '334152';
+        
+        const map = await pgGetStockForCodeins([codein]);
+        
+        const fouResult = await db.execute(sql`
+            SELECT
+                a.codein::text AS codein,
+                COALESCE(fi.nom, af.code, 'Sans fournisseur')::text AS fournisseur
+            FROM articles a
+            LEFT JOIN artfou1 af ON af.art_no_id = a.no_id AND af.preference = 1
+            LEFT JOIN fouident fi ON fi.code = af.code
+            WHERE a.codein::text = ${codein}
+        `);
+
+        return NextResponse.json({
+            stock: Object.fromEntries(map),
+            fou: fouResult.rows,
+        });
+    } catch (e: any) {
+        return NextResponse.json({ error: e.message, stack: e.stack }, { status: 500 });
+    }
+}