add analytics (#162)

apps/web/prisma/migrations/20250510235405_compute_cumulated_metrics/migration.sql

@@ -0,0 +1,27 @@
+BEGIN;
+
+-- 1) Populate or update cumulated totals
+INSERT INTO "CumulatedMetrics" (
+    "teamId",
+    "domainId",
+    "delivered",
+    "hardBounced",
+    "complained"
+)
+SELECT
+    du."teamId",
+    du."domainId",
+    SUM(du.delivered)::BIGINT      AS delivered,
+    SUM(du."hardBounced")::BIGINT  AS hardBounced,
+    SUM(du.complained)::BIGINT     AS complained
+FROM public."DailyEmailUsage" du
+GROUP BY
+    du."teamId",
+    du."domainId"
+ON CONFLICT ("teamId","domainId") DO UPDATE
+  SET
+    "delivered"    = EXCLUDED."delivered",
+    "hardBounced"  = EXCLUDED."hardBounced",
+    "complained"   = EXCLUDED."complained";
+
+COMMIT;