chore(runway): cherry-pick fix(perps): fix stale data and missing price change after reconnection cp-7.70.1

[runway-github]

• fix(perps): fix stale data and missing price change after reconnection (fix(perps): fix stale data and missing price change after reconnection cp-7.70.1 #27530)

Description

Two fixes for perps foreground reconnection:

1. Stale data after background — connect() returned early when
   isConnected=true (grace period kept state alive) without checking if
   the WebSocket was dead. Fixed by adding ensureConnected() that always
   forces disconnect + reconnect on foreground return.

2. Price change "–%" persists after reconnect — Prewarm called
   subscribeToPrices() without includeMarketData, so assetCtxs
   subscriptions (which provide prevDayPx for percentChange24h) were
   never re-established. Fixed by moving the assetCtxs subscription out
   of the includeMarketData guard in subscribeToPrices(). This is safe
   because assetCtxs is 1 subscription per DEX (2-3 total), not
   per-symbol. The expensive per-symbol activeAssetCtx subscriptions
   remain gated behind includeMarketData.

Changelog

CHANGELOG entry: Fixed stale perps data and missing 24h price change
after returning from background

Related issues

Fixes:

Manual testing steps

Feature: Perps foreground reconnection

  Scenario: user returns after short background (grace period still active)
    Given user is on Perps screen with live data
    When user backgrounds app for 10s and returns
    Then data refreshes with live prices and positions
    And 24h price change % displays correctly (not "--%" )

  Scenario: user returns after long background (grace period already fired)
    Given user is on Perps screen with live data
    When user backgrounds app for 60s and returns
    Then data refreshes with live prices and positions
    And 24h price change % displays correctly (not "--%" )

  Scenario: initial mount unchanged
    Given user opens app fresh
    When user navigates to Perps
    Then connection establishes normally via connect()
    And 24h price change % displays correctly

Screenshots/Recordings

Before

After

Pre-merge author checklist

• I've followed MetaMask Contributor
  Docs and MetaMask Mobile
  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

Medium Risk
Touches perps WebSocket lifecycle and subscription behavior;
regressions could cause extra reconnects or missed/duplicated
subscriptions, though changes are scoped and covered by updated tests.

Overview
Fixes perps reconnection reliability by switching foreground handling
from connect() to a new PerpsConnectionManager.ensureConnected()
that cancels any grace period, force-disconnects, resets ref-count,
and reconnects, deduplicating concurrent calls.

Restores 24h % change after reconnection/prewarm by ensuring
HyperLiquidSubscriptionService.subscribeToPrices() always establishes
lightweight per-DEX assetCtxs subscriptions even when
includeMarketData is false; price prewarm explicitly passes
includeMarketData: false and documents the N² connection risk.

Updates unit tests and architecture docs to reflect
ensureConnected() usage and the new subscription expectations.

^{Written by Cursor
Bugbot for commit
1549f85. This will update automatically
on new commits. Configure
here.}

[1bf5d78](https://github.com/MetaMask/metamask-mobile/commit/1bf5d785381031f824a1abc652368a7ba7d6da15)

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🔍 Smart E2E Test Selection

⏭️ Smart E2E selection skipped - base branch is not main (base: release/7.70.1)

All E2E tests pre-selected.

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[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
100.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[github-actions]

✅ E2E Fixture Validation — Schema is up to date
16 value mismatches detected (expected — fixture represents an existing user).
View details