chore(release): release-changelog/7.70.1 (#27841)

## Description

Adds **7.70.1** release notes for hotfixes on `release/7.70.1`, and
updates changelog compare links per release process.

User-facing changes documented:

- Fixed stale perpetuals data and missing 24h price change after
returning from background
([#27530](#27530))
- Fixed a bug where closing positions on HIP-3 markets (e.g.,
xyz:BRENTOIL) failed with "Asset ID not found" when navigating via the
Perps tab
([#27854](#27854))

## Changelog

CHANGELOG entry: null

## Related

- Release PR:
[#27824](#27824)
(`release/7.70.1` → `stable`)
- Cherry-picks:
[#27826](#27826)
(reconnection),
[#27860](#27860) (HIP-3
/ dual-cache)

## Compare links

- `[Unreleased]` → `v7.70.1...HEAD`
- `[7.70.1]` → `v7.70.0...v7.70.1` (patch compares to previous minor
tag)
- Older version links (e.g. `[7.69.1]`) unchanged.

## Branch

- Merged current `release/7.70.1` into this branch so the changelog PR
stays aligned with
[#27824](#27824).

Merge with **Create a merge commit** (not squash), per release changelog
workflow.

<!-- CURSOR_SUMMARY -->
---

> [!NOTE]
> **Low Risk**
> Low risk: documentation-only change to `CHANGELOG.md` with no runtime
or build impact.
> 
> **Overview**
> Documents the `7.70.1` hotfix in `CHANGELOG.md`, adding two *Fixed*
items related to perpetuals market data refresh and HIP-3 perps position
closing.
> 
> Updates the changelog compare links so `Unreleased` now compares from
`v7.70.1`, and adds the new `7.70.1` compare URL.
> 
> <sup>Written by [Cursor
Bugbot](https://cursor.com/dashboard?tab=bugbot) for commit
33bab8a. This will update automatically
on new commits. Configure
[here](https://cursor.com/dashboard?tab=bugbot).</sup>
<!-- /CURSOR_SUMMARY -->

---------

Co-authored-by: metamaskbot <metamaskbot@users.noreply.github.com>

Author: chloeYue

CHANGELOG.md

@@ -7,6 +7,13 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [7.70.1]
+
+### Fixed
+
+- Fixed stale perpetuals data and missing 24h price change after returning from background (#27530)
+- Fixed a bug where closing positions on HIP-3 markets (e.g., xyz:BRENTOIL) failed with "Asset ID not found" when navigating via the Perps tab (#27854)
+
 ## [7.69.1]
 
 ### Fixed
@@ -10931,7 +10938,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - [#957](https://github.com/MetaMask/metamask-mobile/pull/957): fix timeouts (#957)
 - [#954](https://github.com/MetaMask/metamask-mobile/pull/954): Bugfix: onboarding navigation (#954)
 
-[Unreleased]: https://github.com/MetaMask/metamask-mobile/compare/v7.69.1...HEAD
+[Unreleased]: https://github.com/MetaMask/metamask-mobile/compare/v7.70.1...HEAD
+[7.70.1]: https://github.com/MetaMask/metamask-mobile/compare/v7.70.0...v7.70.1
 [7.69.1]: https://github.com/MetaMask/metamask-mobile/compare/v7.69.0...v7.69.1
 [7.69.0]: https://github.com/MetaMask/metamask-mobile/compare/v7.68.3...v7.69.0
 [7.68.3]: https://github.com/MetaMask/metamask-mobile/compare/v7.68.2...v7.68.3