Deduplicate top campaign clients by name

backend/test/campaignService.test.js

@@ -48,7 +48,8 @@ test('getTopClientsForCampaign returns top clients for an explicit date range',
                 total_gasto: '1234.50',
                 total_comprado: '18',
                 total_pedidos: 4,
-                ultima_compra: '2026-07-27'
+                ultima_compra: '2026-07-27',
+                telefones: ['5516999999901', '5516999999902']
             }
         ]
     }), async ({ getTopClientsForCampaign }, queries) => {
@@ -68,12 +69,14 @@ test('getTopClientsForCampaign returns top clients for an explicit date range',
             total_gasto: 1234.5,
             total_comprado: 18,
             total_pedidos: 4,
-            ultima_compra: '2026-07-27'
+            ultima_compra: '2026-07-27',
+            telefones: ['5516999999901', '5516999999902']
         });
 
         assert.equal(queries.length, 1);
         assert.deepEqual(queries[0].params, ['2026-06-28', '2026-07-27', 1000]);
-        assert.match(queries[0].sql, /customer_key NOT LIKE 'name:%'/);
+        assert.match(queries[0].sql, /GROUP BY COALESCE\(canonical_customer_name, whatsapp_phone\)/);
+        assert.match(queries[0].sql, /ARRAY_AGG\(DISTINCT whatsapp_phone\)/);
         assert.match(queries[0].sql, /ORDER BY total_gasto DESC/);
     });
 });
@@ -91,3 +94,17 @@ test('getTopClientsForCampaign derives an inclusive 30 day range from the end da
         assert.deepEqual(queries[0].params, ['2026-06-28', '2026-07-27', 1000]);
     });
 });
+
+test('getTopClientsForCampaign normalizes phones and ranks one row per canonical client name', async () => {
+    await withCampaignService(async () => ({ rows: [] }), async ({ getTopClientsForCampaign }, queries) => {
+        await getTopClientsForCampaign({
+            days: '30',
+            end: '2026-07-27'
+        });
+
+        assert.match(queries[0].sql, /regexp_replace\(COALESCE\(cliente_fone, ''\), '\\D', '', 'g'\)/);
+        assert.match(queries[0].sql, /WHEN length\(/);
+        assert.match(queries[0].sql, /'55' \|\|/);
+        assert.match(queries[0].sql, /canonical_customer_name/);
+    });
+});