refactor: shorten model and table prefixes

backend/internal/logic/ai/rate_limit_postgres_test.go

@@ -28,7 +28,7 @@ func TestPostgresReserveRateLimitIsAtomicAcrossConcurrentConnections(t *testing.
 	user := createAIRateTestUser(t, database, "postgres-rate-"+suffix+"@example.com")
 	action := "postgres_concurrent_" + suffix
 	t.Cleanup(func() {
-		database.Where("user_id = ?", user.ID).Delete(&models.SenlinAgentAIRateBucket{})
+		database.Where("user_id = ?", user.ID).Delete(&models.SaAIRateBucket{})
 		database.Delete(&user)
 	})
 	gateway := NewGatewayWithSecret("system-key", "test-encryption-secret")
@@ -66,7 +66,7 @@ func TestPostgresReserveRateLimitIsAtomicAcrossConcurrentConnections(t *testing.
 	}
 	require.Equal(t, limit, allowed)
 	require.Equal(t, attempts-limit, limited)
-	var bucket models.SenlinAgentAIRateBucket
+	var bucket models.SaAIRateBucket
 	require.NoError(t, database.Where("user_id = ? AND action = ?", user.ID, action).First(&bucket).Error)
 	require.Equal(t, limit, bucket.Count)
 }