feat: add Shield activity to rewards pts estimation (#38462)

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## **Description**

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This PR adds Shield activity to rewards pts estimation.

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CHANGELOG entry: estimate rewards points for shield subscription

## **Related issues**

Fixes:

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Author: lwin-kyaw

app/scripts/controllers/rewards/rewards-controller.test.ts

@@ -22,6 +22,10 @@ import {
   KeyringControllerSignPersonalMessageAction,
   KeyringControllerUnlockEvent,
 } from '@metamask/keyring-controller';
+import {
+  RECURRING_INTERVALS,
+  RecurringInterval,
+} from '@metamask/subscription-controller';
 import { HardwareDeviceNames } from '../../../../shared/constants/hardware-wallets';
 import {
   RewardsControllerActions,
@@ -1106,6 +1110,42 @@ describe('RewardsController', () => {
         },
       );
     });
+
+    it('should estimate points for shield activity', async () => {
+      await withController(
+        { isDisabled: false },
+        async ({ controller, mockMessengerCall }) => {
+          const recurringInterval: RecurringInterval =
+            RECURRING_INTERVALS.month;
+          const mockEstimatedPoints: EstimatedPointsDto = {
+            pointsEstimate:
+              recurringInterval === RECURRING_INTERVALS.month ? 1000 : 10000,
+            bonusBips: 0,
+          };
+
+          mockMessengerCall.mockImplementation((actionType) => {
+            if (actionType === 'RewardsDataService:estimatePoints') {
+              return Promise.resolve(mockEstimatedPoints);
+            }
+            return undefined;
+          });
+
+          const request: EstimatePointsDto = {
+            activityType: 'SHIELD',
+            account: MOCK_CAIP_ACCOUNT,
+            activityContext: {
+              shieldContext: {
+                recurringInterval,
+              },
+            },
+          };
+
+          const result = await controller.estimatePoints(request);
+
+          expect(result).toEqual(mockEstimatedPoints);
+        },
+      );
+    });
   });
 
   describe('getSeasonMetadata', () => {

shared/types/rewards.ts

@@ -3,6 +3,7 @@
  * These types are used across UI and background to avoid import restrictions
  */
 
+import { RecurringInterval } from '@metamask/subscription-controller';
 import { CaipAccountId, CaipAssetType } from '@metamask/utils';
 
 export enum SeasonRewardType {
@@ -160,6 +161,15 @@ export type EstimatePerpsContextDto = {
   coin: string;
 };
 
+export type EstimateShieldContextDto = {
+  /**
+   * Recurring interval of the shield subscription
+   *
+   * @example 'month'
+   */
+  recurringInterval: RecurringInterval;
+};
+
 export type EstimatePointsContextDto = {
   /**
    * Swap context data, must be present for SWAP activity
@@ -170,6 +180,11 @@ export type EstimatePointsContextDto = {
    * PERPS context data, must be present for PERPS activity
    */
   perpsContext?: EstimatePerpsContextDto;
+
+  /**
+   * Shield context data, must be present for SHIELD activity
+   */
+  shieldContext?: EstimateShieldContextDto;
 };
 
 /**
@@ -183,7 +198,8 @@ export type PointsEventEarnType =
   | 'REFERRAL'
   | 'SIGN_UP_BONUS'
   | 'LOYALTY_BONUS'
-  | 'ONE_TIME_BONUS';
+  | 'ONE_TIME_BONUS'
+  | 'SHIELD';
 
 export type EstimatedPointsDto = {
   /**