chore: move backup and sync and experimental tabs from legacy settings

[ameliejyc]

Description

Simply moves the backup and sync tab and experimental tab to the settings-v2 folder and removes them from the legacy folder.

Changelog

CHANGELOG entry: null

Related issues

Fixes:

Manual testing steps

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Screenshots/Recordings

Before

After

Pre-merge author checklist

• I've followed MetaMask Contributor Docs and MetaMask Extension Coding Standards.
• I've completed the PR template to the best of my ability
• I’ve included tests if applicable
• I’ve documented my code using JSDoc format if applicable
• I’ve applied the right labels on the PR (see labeling guidelines). 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.

---

Note

Low Risk
Low risk refactor that primarily changes route wiring and local imports; main risk is broken navigation/lazy-loading if any import paths or registry entries are incorrect.

Overview
Moves the Backup & Sync and Experimental settings tabs fully into ui/pages/settings-v2, updating their internal imports to use the local settings-v2 shared/types/search-config modules.

Updates settings-v2/settings-registry.ts to lazy-load these tabs from their new settings-v2 locations (instead of legacy ui/pages/settings/*), and adjusts Jest console baselines to track warnings under the new test file paths.

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[github-actions]

CLA Signature Action: All authors have signed the CLA. You may need to manually re-run the blocking PR check if it doesn't pass in a few minutes.

[metamaskbotv2]

Builds ready [4fe307f]

• builds: chrome, firefox
• builds (beta): chrome, firefox
• builds (flask): chrome, firefox
• builds (test): chrome, firefox
• builds (test-flask): chrome, firefox
• webpack builds: chrome, firefox
• webpack builds (beta): chrome, firefox
• webpack builds (flask): chrome, firefox
• webpack builds (test): chrome, firefox
• webpack builds (test-flask): chrome, firefox
• bundle size: Bundle Size Stats
• bundle analyzer: Bundle Analyzer
• interaction-benchmark: Interaction Stats
• storybook: Storybook
• typescript migration: Dashboard
• all artifacts

⚡ Performance Benchmarks (Total: 🟢 7 pass · 🟡 8 warn · 🔴 0 fail)

Baseline (latest main): 71bd826 | Date: 10/14/58243 | Pipeline: 24676229559 | Baseline logs

Interaction Benchmarks · Samples: 5

Benchmark	chrome-browserify
loadNewAccount	🟡 [Show logs]
confirmTx	🟡 [Show logs]
bridgeUserActions	🟡 [Show logs]

📈 Results compared to the previous 5 runs on main

• ↓ loadNewAccount/load_new_account: -78%
• ↓ loadNewAccount/total: -78%
• ↓ bridgeUserActions/bridge_load_page: -32%
• ↓ bridgeUserActions/bridge_load_asset_picker: -47%
• ↓ bridgeUserActions/bridge_search_token: -24%
• ↓ bridgeUserActions/total: -31%

🌐 Core Web Vitals — 🟢 good · 🟡 needs improvement · 🔴 poor (web.dev thresholds)

• 🟡 loadNewAccount/FCP: p75 2.5s
• 🟡 confirmTx/FCP: p75 2.5s
• 🟡 bridgeUserActions/FCP: p75 2.5s

Startup Benchmarks · Samples: 100

Benchmark	chrome-browserify	chrome-webpack	firefox-browserify	firefox-webpack
startupStandardHome	🟢 [Show logs]	🟢 [Show logs]	🟢 [Show logs]	🟢 [Show logs]

📈 Results compared to the previous 5 runs on main

• ↓ startupStandardHome/uiStartup: -24%
• ↓ startupStandardHome/load: -13%
• ↓ startupStandardHome/domContentLoaded: -15%
• ↓ startupStandardHome/firstReactRender: -14%
• ↑ startupStandardHome/initialActions: +33%
• ↓ startupStandardHome/loadScripts: -17%
• ↓ startupStandardHome/numNetworkReqs: -37%
• ↓ startupStandardHome/uiStartup: -17%
• ↓ startupStandardHome/load: -12%
• ↓ startupStandardHome/domContentLoaded: -12%
• ↑ startupStandardHome/firstPaint: +24%
• ↓ startupStandardHome/backgroundConnect: -34%
• ↓ startupStandardHome/firstReactRender: -27%
• ↓ startupStandardHome/loadScripts: -12%
• ↓ startupStandardHome/numNetworkReqs: -44%
• ↓ startupStandardHome/uiStartup: -14%
• ↓ startupStandardHome/domInteractive: -47%
• ↓ startupStandardHome/initialActions: -33%
• ↓ startupStandardHome/setupStore: -17%
• ↓ startupStandardHome/numNetworkReqs: -34%
• ↓ startupStandardHome/uiStartup: -14%
• ↓ startupStandardHome/domInteractive: -45%
• ↓ startupStandardHome/initialActions: -43%
• ↓ startupStandardHome/setupStore: -64%
• ↓ startupStandardHome/numNetworkReqs: -34%

User Journey Benchmarks · Samples: 5 · mock API

Benchmark	chrome-browserify
onboardingImportWallet	🟢 [Show logs]
onboardingNewWallet	🟢 [Show logs]
assetDetails	🟡 [Show logs]
solanaAssetDetails	🟡 [Show logs]
importSrpHome	🟡 [Show logs]
sendTransactions	🟡 [Show logs]
swap	🟡 [Show logs]

📈 Results compared to the previous 5 runs on main

• ↓ onboardingImportWallet/srpButtonToSrpForm: -85%
• ↓ onboardingImportWallet/metricsToWalletReadyScreen: -32%
• ↓ onboardingImportWallet/doneButtonToHomeScreen: -76%
• ↑ onboardingImportWallet/openAccountMenuToAccountListLoaded: +26%
• ↓ onboardingImportWallet/total: -45%
• ↓ onboardingNewWallet/srpButtonToPwForm: -77%
• ↓ onboardingNewWallet/skipBackupToMetricsScreen: -63%
• ↑ onboardingNewWallet/agreeButtonToOnboardingSuccess: +12%
• ↓ onboardingNewWallet/doneButtonToAssetList: -24%
• ↓ onboardingNewWallet/total: -25%
• ↓ assetDetails/assetClickToPriceChart: -56%
• ↓ assetDetails/total: -56%
• ↓ solanaAssetDetails/assetClickToPriceChart: -65%
• ↓ solanaAssetDetails/total: -65%
• ↓ importSrpHome/loginToHomeScreen: -12%
• ↓ importSrpHome/openAccountMenuAfterLogin: -71%
• ↓ importSrpHome/homeAfterImportWithNewWallet: -66%
• ↓ importSrpHome/total: -59%
• ↓ sendTransactions/openSendPageFromHome: -27%
• ↑ sendTransactions/selectTokenToSendFormLoaded: +13%
• ↑ sendTransactions/reviewTransactionToConfirmationPage: +34%
• ↑ sendTransactions/total: +33%
• ↓ swap/openSwapPageFromHome: -96%
• ↑ swap/fetchAndDisplaySwapQuotes: +31%
• ↑ swap/total: +11%

🌐 Core Web Vitals — 🟢 good · 🟡 needs improvement · 🔴 poor (web.dev thresholds)

• 🟡 assetDetails/FCP: p75 2.5s
• 🟡 solanaAssetDetails/FCP: p75 2.5s
• 🟡 importSrpHome/FCP: p75 2.5s
• 🟡 sendTransactions/FCP: p75 2.5s
• 🟡 swap/FCP: p75 2.5s

Dapp Page Load Benchmarks · Samples: 100

Benchmark	chrome-browserify
dappPageLoad	🟢 [Show logs]

Bundle size diffs

• background: 58 Bytes (0%)
• ui: -231 Bytes (0%)
• common: 20 Bytes (0%)

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
85.2% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[metamaskbotv2]

Builds ready [00ad86e]

• builds: chrome, firefox
• builds (beta): chrome, firefox
• builds (flask): chrome, firefox
• builds (test): chrome, firefox
• builds (test-flask): chrome, firefox
• webpack builds: chrome, firefox
• webpack builds (beta): chrome, firefox
• webpack builds (flask): chrome, firefox
• webpack builds (test): chrome, firefox
• webpack builds (test-flask): chrome, firefox
• bundle size: Bundle Size Stats
• bundle analyzer: Bundle Analyzer
• interaction-benchmark: Interaction Stats
• storybook: Storybook
• typescript migration: Dashboard
• all artifacts

⚡ Performance Benchmarks (Total: 🟢 7 pass · 🟡 8 warn · 🔴 0 fail)

Baseline (latest main): 71bd826 | Date: 10/14/58243 | Pipeline: 24679447914 | Baseline logs

Interaction Benchmarks · Samples: 5

Benchmark	chrome-browserify
loadNewAccount	🟡 [Show logs]
confirmTx	🟡 [Show logs]
bridgeUserActions	🟡 [Show logs]

📈 Results compared to the previous 5 runs on main

• ↓ loadNewAccount/load_new_account: -70%
• ↓ loadNewAccount/total: -70%
• ↓ bridgeUserActions/bridge_load_page: -26%
• ↓ bridgeUserActions/bridge_load_asset_picker: -33%
• ↓ bridgeUserActions/bridge_search_token: -29%
• ↓ bridgeUserActions/total: -30%

🌐 Core Web Vitals — 🟢 good · 🟡 needs improvement · 🔴 poor (web.dev thresholds)

• 🟡 loadNewAccount/FCP: p75 2.6s
• 🟡 confirmTx/FCP: p75 2.5s
• 🟡 bridgeUserActions/FCP: p75 2.5s

Startup Benchmarks · Samples: 100

Benchmark	chrome-browserify	chrome-webpack	firefox-browserify	firefox-webpack
startupStandardHome	🟢 [Show logs]	🟢 [Show logs]	🟢 [Show logs]	🟢 [Show logs]

📈 Results compared to the previous 5 runs on main

• ↓ startupStandardHome/uiStartup: -22%
• ↓ startupStandardHome/load: -11%
• ↓ startupStandardHome/domContentLoaded: -13%
• ↑ startupStandardHome/domInteractive: +20%
• ↓ startupStandardHome/firstReactRender: -10%
• ↓ startupStandardHome/initialActions: -33%
• ↓ startupStandardHome/loadScripts: -17%
• ↓ startupStandardHome/numNetworkReqs: -37%
• ↓ startupStandardHome/uiStartup: -20%
• ↓ startupStandardHome/load: -15%
• ↓ startupStandardHome/domContentLoaded: -14%
• ↓ startupStandardHome/backgroundConnect: -35%
• ↓ startupStandardHome/firstReactRender: -30%
• ↓ startupStandardHome/loadScripts: -14%
• ↓ startupStandardHome/setupStore: -13%
• ↓ startupStandardHome/numNetworkReqs: -44%
• ↓ startupStandardHome/domInteractive: -22%
• ↑ startupStandardHome/backgroundConnect: +14%
• ↑ startupStandardHome/initialActions: +33%
• ↓ startupStandardHome/numNetworkReqs: -34%
• ↓ startupStandardHome/uiStartup: -20%
• ↓ startupStandardHome/load: -12%
• ↓ startupStandardHome/domContentLoaded: -12%
• ↓ startupStandardHome/domInteractive: -61%
• ↓ startupStandardHome/backgroundConnect: -11%
• ↓ startupStandardHome/initialActions: -43%
• ↓ startupStandardHome/loadScripts: -12%
• ↓ startupStandardHome/setupStore: -64%
• ↓ startupStandardHome/numNetworkReqs: -34%

User Journey Benchmarks · Samples: 5 · mock API

Benchmark	chrome-browserify
onboardingImportWallet	🟢 [Show logs]
onboardingNewWallet	🟢 [Show logs]
assetDetails	🟡 [Show logs]
solanaAssetDetails	🟡 [Show logs]
importSrpHome	🟡 [Show logs]
sendTransactions	🟡 [Show logs]
swap	🟡 [Show logs]

📈 Results compared to the previous 5 runs on main

• ↓ onboardingImportWallet/srpButtonToSrpForm: -85%
• ↓ onboardingImportWallet/metricsToWalletReadyScreen: -33%
• ↓ onboardingImportWallet/doneButtonToHomeScreen: -76%
• ↑ onboardingImportWallet/openAccountMenuToAccountListLoaded: +18%
• ↓ onboardingImportWallet/total: -44%
• ↓ onboardingNewWallet/srpButtonToPwForm: -78%
• ↓ onboardingNewWallet/skipBackupToMetricsScreen: -67%
• ↑ onboardingNewWallet/agreeButtonToOnboardingSuccess: +10%
• ↓ onboardingNewWallet/doneButtonToAssetList: -24%
• ↓ onboardingNewWallet/total: -26%
• ↓ assetDetails/assetClickToPriceChart: -58%
• ↓ assetDetails/total: -58%
• ↓ solanaAssetDetails/assetClickToPriceChart: -72%
• ↓ solanaAssetDetails/total: -72%
• ↓ importSrpHome/loginToHomeScreen: -10%
• ↓ importSrpHome/openAccountMenuAfterLogin: -85%
• ↓ importSrpHome/homeAfterImportWithNewWallet: -68%
• ↓ importSrpHome/total: -61%
• ↓ sendTransactions/openSendPageFromHome: -36%
• ↓ sendTransactions/selectTokenToSendFormLoaded: -43%
• ↑ sendTransactions/reviewTransactionToConfirmationPage: +32%
• ↑ sendTransactions/total: +29%
• ↓ swap/openSwapPageFromHome: -97%
• ↑ swap/fetchAndDisplaySwapQuotes: +32%
• ↑ swap/total: +11%

🌐 Core Web Vitals — 🟢 good · 🟡 needs improvement · 🔴 poor (web.dev thresholds)

• 🟡 assetDetails/FCP: p75 2.5s
• 🟡 solanaAssetDetails/FCP: p75 2.5s
• 🟡 importSrpHome/FCP: p75 2.5s
• 🟡 sendTransactions/FCP: p75 2.5s
• 🟡 swap/FCP: p75 2.0s

Dapp Page Load Benchmarks · Samples: 100

Benchmark	chrome-browserify
dappPageLoad	🟢 [Show logs]

Bundle size diffs [🚨 Warning! Bundle size has increased!]

• background: 6.02 MiB (100%)
• ui: 8.31 MiB (100%)
• common: 12.88 MiB (100%)