feat: add stablecoin lending feature flag (#12911)

## **Description**

This PR add a new feature flag for stable coin lending UI .

## **Related issues**

Fixes:
[STAKE-893](https://consensyssoftware.atlassian.net/browse/STAKE-893)

## **Manual testing steps**

1. Go to this page...
2.
3.

## **Screenshots/Recordings**

<!-- If applicable, add screenshots and/or recordings to visualize the
before and after of your change. -->

### **Before**

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### **After**

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## **Pre-merge author checklist**

- [x] I’ve followed [MetaMask Contributor
Docs](https://github.com/MetaMask/contributor-docs) and [MetaMask Mobile
Coding
Standards](https://github.com/MetaMask/metamask-mobile/blob/main/.github/guidelines/CODING_GUIDELINES.md).
- [x] I've completed the PR template to the best of my ability
- [x] I’ve included tests if applicable
- [x] I’ve documented my code using [JSDoc](https://jsdoc.app/) format
if applicable
- [x] I’ve applied the right labels on the PR (see [labeling
guidelines](https://github.com/MetaMask/metamask-mobile/blob/main/.github/guidelines/LABELING_GUIDELINES.md)).
Not required for external contributors.

## **Pre-merge reviewer checklist**

- [ ] I've manually tested the PR (e.g. pull and build branch, run the
app, test code being changed).
- [ ] I confirm that this PR addresses all acceptance criteria described
in the ticket it closes and includes the necessary testing evidence such
as recordings and or screenshots.


[STAKE-893]:
https://consensyssoftware.atlassian.net/browse/STAKE-893?atlOrigin=eyJpIjoiNWRkNTljNzYxNjVmNDY3MDlhMDU5Y2ZhYzA5YTRkZjUiLCJwIjoiZ2l0aHViLWNvbS1KU1cifQ

.js.env.example

@@ -1,10 +1,10 @@
 # Sign up and generate your own keys at pubnub.com
 # Then rename this file to ".js.env" and rebuild the app
-# 
+#
 # In order for this feature to work properly, you need to
 # build metamask-extension from source (https://github.com/MetaMask/metamask-extension)
 # and set your the same values there.
-# 
+#
 # For more info take a look at https://github.com/MetaMask/metamask-extension/pull/5955
 
 export MM_PUBNUB_SUB_KEY=""
@@ -107,3 +107,6 @@ export MM_MULTICHAIN_V1_ENABLED=""
 
 # Permissions Settings feature flag specific to UI changes
 export MM_PERMISSIONS_SETTINGS_V1_ENABLED=""
+
+# Feature flag for Stablecoin Lending UI
+export MM_STABLECOIN_LENDING_UI_ENABLED="true"

app/components/UI/Stake/constants/index.ts

@@ -2,5 +2,8 @@
 export const isPooledStakingFeatureEnabled = () =>
   process.env.MM_POOLED_STAKING_UI_ENABLED === 'true';
 
+export const isStablecoinLendingFeatureEnabled = () =>
+  process.env.MM_STABLECOIN_LENDING_UI_ENABLED === 'true';
+
 export const POOLED_STAKING_FAQ_URL =
   'https://support.metamask.io/metamask-portfolio/move-crypto/stake/staking-pool/';

bitrise.yml

@@ -114,7 +114,7 @@ stages:
     workflows:
       - deploy_android_to_store: {}
   create_build_qa_and_expo:
-      workflows:
+    workflows:
       - build_android_devbuild: {}
       - build_android_qa: {}
       - build_ios_devbuild: {}
@@ -1247,20 +1247,20 @@ workflows:
             - content: |-
                 # Define the source path of the generated APK
                 SOURCE_APK_PATH="$PROJECT_LOCATION/app/build/outputs/apk/prod/debug/app-prod-debug.apk"
-                
+
                 # Define the destination path with the new name
                 DEST_APK_PATH="$BITRISE_DEPLOY_DIR/android-expo-dev-build.apk"
-                
+
                 # Copy and rename the APK
                 cp "$SOURCE_APK_PATH" "$DEST_APK_PATH"
-                
+
                 # Optionally, print the new path for verification
                 echo "APK has been copied and renamed to: $DEST_APK_PATH"
       - [email protected]:
           is_always_run: false
           is_skippable: true
           inputs:
-            - deploy_path: "$BITRISE_DEPLOY_DIR/android-expo-dev-build.apk"
+            - deploy_path: '$BITRISE_DEPLOY_DIR/android-expo-dev-build.apk'
           title: Bitrise Deploy APK
     meta:
       bitrise.io:
@@ -1537,21 +1537,21 @@ workflows:
             - content: |-
                 # Define the source path of the generated IPA
                 SOURCE_IPA_PATH="ios/build/output/MetaMask.ipa"
-                
+
                 # Define the destination path with the new name
                 DEST_IPA_PATH="$BITRISE_DEPLOY_DIR/ios-expo-dev-build.ipa"
-                
+
                 # Copy and rename the IPA
                 cp "$SOURCE_IPA_PATH" "$DEST_IPA_PATH"
-                
+
                 # Optionally, print the new path for verification
                 echo "IPA has been copied and renamed to: $DEST_IPA_PATH"
       - [email protected]:
           is_always_run: false
           is_skippable: true
           inputs:
             - pipeline_intermediate_files: ios/build/output/MetaMask.ipa:BITRISE_APP_STORE_IPA_PATH
-            - deploy_path: "$BITRISE_DEPLOY_DIR/ios-expo-dev-build.ipa"
+            - deploy_path: '$BITRISE_DEPLOY_DIR/ios-expo-dev-build.ipa'
           title: Deploy iOS IPA
   build_ios_qa:
     envs:
@@ -1761,6 +1761,9 @@ app:
     - opts:
         is_expand: false
       MM_SECURITY_ALERTS_API_ENABLED: true
+    - opts:
+        is_expand: false
+      MM_STABLECOIN_LENDING_UI_ENABLED: false
     - opts:
         is_expand: false
       PROJECT_LOCATION: android