refactor: Remove all external references to legacy Swaps routes (MetaMask#23108)

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## **Description**
The main goal of this PR is to remove all references to `Routes.SWAPS`
from the codebase (apart from the legacy Swaps View directory which will
be handled in a different PR).

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2. What is the improvement/solution?
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## **Changelog**

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CHANGELOG entry: null

## **Related issues**

Fixes:
https://consensyssoftware.atlassian.net/jira/software/c/projects/SWAPS/boards/1566?quickFilter=1772&selectedIssue=SWAPS-3472

## **Manual testing steps**

```gherkin
Ensure that users can navigate to swaps when they click the swap button next to a token in Browser view (see attached recording)
```

## **Screenshots/Recordings**

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

### **Before**

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### **After**



https://github.com/user-attachments/assets/df2961dc-a1f3-4da1-b135-52fdb69cd83e



<!-- [screenshots/recordings] -->

## **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.

<!-- CURSOR_SUMMARY -->
---

> [!NOTE]
> Replaces all external uses of legacy Swaps routes with Bridge
navigation and updates related handlers, constants, and tests.
> 
> - **Navigation**:
> - Removed `Swaps` screens and imports from
`app/components/Nav/Main/MainNavigator.js`.
> - Added `BridgeView` import and ensured Bridge stacks
(`Routes.BRIDGE.ROOT`, `Routes.BRIDGE.MODALS.ROOT`) are the sole trade
route entries.
> - **Transactions UI**:
> - In `SmartTransactionStatus.tsx`, `createNewSwap` now navigates to
`Routes.BRIDGE.ROOT` instead of `Routes.SWAPS`.
> - **Deeplinks & SDK**:
> - `SwapHandler` now navigates to `Routes.BRIDGE.ROOT` →
`Routes.BRIDGE.BRIDGE_VIEW` with params `{ sourceToken, destToken,
sourceAmount, chainId }`.
> - `handleCustomRpcCalls` routes `target: 'swap'` to
`Routes.BRIDGE.ROOT`.
> - **Routes/Constants**:
> - Removed `Routes.SWAPS` and `Routes.SWAPS_AMOUNT_VIEW`; retained/used
Bridge route keys.
> - **Tests/Snapshots**:
> - Updated `SmartTransactionStatus.test.tsx` to expect Bridge
navigation.
> - Updated `SwapHandler.test.ts` to expect Bridge navigation and param
key changes.
> - Snapshot `MainNavigator.test.tsx.snap` updated to remove `Swaps`
screen.
> 
> <sup>Written by [Cursor
Bugbot](https://cursor.com/dashboard?tab=bugbot) for commit
7eea25c. This will update automatically
on new commits. Configure
[here](https://cursor.com/dashboard?tab=bugbot).</sup>
<!-- /CURSOR_SUMMARY -->

Author: GeorgeGkas

app/components/Nav/Main/MainNavigator.js

@@ -53,8 +53,6 @@ import ActivityView from '../../Views/ActivityView';
 import RewardsNavigator from '../../UI/Rewards/RewardsNavigator';
 import TrendingView from '../../Views/TrendingView/TrendingView';
 import SitesListView from '../../Views/TrendingView/SitesListView';
-import SwapsAmountView from '../../UI/Swaps';
-import SwapsQuotesView from '../../UI/Swaps/QuotesView';
 import CollectiblesDetails from '../../UI/CollectibleModal';
 import OptinMetrics from '../../UI/OptinMetrics';
 
@@ -133,6 +131,7 @@ import {
   TOKEN,
 } from '../../Views/AddAsset/AddAsset.constants';
 import { strings } from '../../../../locales/i18n';
+import BridgeView from '../../UI/Bridge/Views/BridgeView';
 
 const Stack = createStackNavigator();
 const Tab = createBottomTabNavigator();
@@ -339,16 +338,6 @@ const BrowserFlow = (props) => (
       component={Asset}
       initialParams={props.route.params}
     />
-    <Stack.Screen
-      name="SwapsAmountView"
-      component={SwapsAmountView}
-      options={SwapsAmountView.navigationOptions}
-    />
-    <Stack.Screen
-      name="SwapsQuotesView"
-      component={SwapsQuotesView}
-      options={SwapsQuotesView.navigationOptions}
-    />
   </Stack.Navigator>
 );
 
@@ -874,21 +863,6 @@ const NotificationsModeView = (props) => (
   </Stack.Navigator>
 );
 
-const Swaps = () => (
-  <Stack.Navigator>
-    <Stack.Screen
-      name="SwapsAmountView"
-      component={SwapsAmountView}
-      options={SwapsAmountView.navigationOptions}
-    />
-    <Stack.Screen
-      name="SwapsQuotesView"
-      component={SwapsQuotesView}
-      options={SwapsQuotesView.navigationOptions}
-    />
-  </Stack.Navigator>
-);
-
 const SetPasswordFlow = () => (
   <Stack.Navigator>
     <Stack.Screen
@@ -1099,7 +1073,6 @@ const MainNavigator = () => {
         {() => <RampRoutes rampType={RampType.SELL} />}
       </Stack.Screen>
       <Stack.Screen name={Routes.DEPOSIT.ID} component={DepositRoutes} />
-      <Stack.Screen name="Swaps" component={Swaps} />
       <Stack.Screen name={Routes.BRIDGE.ROOT} component={BridgeScreenStack} />
       <Stack.Screen
         name={Routes.BRIDGE.MODALS.ROOT}

app/components/Nav/Main/__snapshots__/MainNavigator.test.tsx.snap

@@ -163,10 +163,6 @@ exports[`MainNavigator matches rendered snapshot 1`] = `
     component={[Function]}
     name="Deposit"
   />
-  <Screen
-    component={[Function]}
-    name="Swaps"
-  />
   <Screen
     component={[Function]}
     name="Bridge"

app/components/Views/transactions/SmartTransactionStatus/SmartTransactionStatus.test.tsx

@@ -496,7 +496,7 @@ describe('SmartTransactionStatus', () => {
             }),
           );
           fireEvent.press(primaryButton);
-          expect(mockNavigate).toHaveBeenCalledWith(Routes.SWAPS);
+          expect(mockNavigate).toHaveBeenCalledWith(Routes.BRIDGE.ROOT);
         });
         it('should navigate to Activity page on press of secondary button', () => {
           const { getByText } = renderWithProvider(
@@ -659,7 +659,7 @@ describe('SmartTransactionStatus', () => {
             strings('smart_transactions.try_again'),
           );
           fireEvent.press(primaryButton);
-          expect(mockNavigate).toHaveBeenCalledWith(Routes.SWAPS);
+          expect(mockNavigate).toHaveBeenCalledWith(Routes.BRIDGE.ROOT);
         });
         it('should navigate to Activity page on press of secondary button', () => {
           const { getByText } = renderWithProvider(

app/components/Views/transactions/SmartTransactionStatus/SmartTransactionStatus.tsx

@@ -299,7 +299,7 @@ const SmartTransactionStatus = ({
 
   const createNewSwap = () => {
     onConfirm();
-    navigation.navigate(Routes.SWAPS);
+    navigation.navigate(Routes.BRIDGE.ROOT);
   };
 
   const createNewSend = () => {

app/constants/navigation/Routes.ts

@@ -234,8 +234,6 @@ const Routes = {
   },
   ADD_NETWORK: 'AddNetwork',
   EDIT_NETWORK: 'EditNetwork',
-  SWAPS: 'Swaps',
-  SWAPS_AMOUNT_VIEW: 'SwapsAmountView',
   BRIDGE: {
     ROOT: 'Bridge',
     BRIDGE_VIEW: 'BridgeView',

app/core/DeeplinkManager/handlers/v2/SwapHandler.ts

@@ -38,11 +38,11 @@ export class SwapHandler extends BaseHandler {
         link.params;
 
       // Navigate to swap screen with parameters
-      this.navigate(context, Routes.SWAPS, {
-        screen: Routes.SWAPS_AMOUNT_VIEW,
+      this.navigate(context, Routes.BRIDGE.ROOT, {
+        screen: Routes.BRIDGE.BRIDGE_VIEW,
         params: {
           sourceToken,
-          destinationToken,
+          destToken: destinationToken,
           sourceAmount,
           chainId: chain,
         },

app/core/DeeplinkManager/handlers/v2/__tests__/SwapHandler.test.ts

@@ -35,15 +35,18 @@ describe('SwapHandler', () => {
     const result = await handler.handle(link, mockContext);
 
     expect(result.handled).toBe(true);
-    expect(mockContext.navigation.navigate).toHaveBeenCalledWith(Routes.SWAPS, {
-      screen: Routes.SWAPS_AMOUNT_VIEW,
-      params: {
-        sourceToken: 'ETH',
-        destinationToken: 'USDC',
-        sourceAmount: '1',
-        chainId: undefined,
+    expect(mockContext.navigation.navigate).toHaveBeenCalledWith(
+      Routes.BRIDGE.ROOT,
+      {
+        screen: Routes.BRIDGE.BRIDGE_VIEW,
+        params: {
+          sourceToken: 'ETH',
+          destToken: 'USDC',
+          sourceAmount: '1',
+          chainId: undefined,
+        },
       },
-    });
+    );
   });
 
   it('requires authentication for swap', async () => {

app/core/SDKConnect/handlers/handleCustomRpcCalls.ts

@@ -115,7 +115,7 @@ export const handleCustomRpcCalls = async ({
       DevLogger.log(
         `[handleCustomRpcCalls] targetToken=${targetToken} amount=${targetAmount}`,
       );
-      navigation?.navigate(Routes.SWAPS);
+      navigation?.navigate(Routes.BRIDGE.ROOT);
     } else {
       navigation?.navigate(...createBuyNavigationDetails());
     }