fix: use slip44:5042 for Arc's native USDC now that it has a real SLI… (#9681)

…P-44 entry

Arc (eip155:5042) was enabled before its native asset (USDC) had a
SLIP-44 registry entry, so it used the erc20:0x0 zero-address
placeholder in SPOT_PRICES_SUPPORT_INFO. The Arc team has since
registered slip44:5042 for it.

## Explanation

<!--
Thanks for your contribution! Take a moment to answer these questions so
that reviewers have the information they need to properly understand
your changes:

* What is the current state of things and why does it need to change?
* What is the solution your changes offer and how does it work?
* Are there any changes whose purpose might not obvious to those
unfamiliar with the domain?
* If your primary goal was to update one package but you found you had
to update another one along the way, why did you do so?
* If you had to upgrade a dependency, why did you do so?
-->

## References

<!--
Are there any issues that this pull request is tied to?
Are there other links that reviewers should consult to understand these
changes better?
Are there client or consumer pull requests to adopt any breaking
changes?

For example:

* Fixes #12345
* Related to #67890
-->

## Checklist

- [ ] I've updated the test suite for new or updated code as appropriate
- [ ] I've updated documentation (JSDoc, Markdown, etc.) for new or
updated code as appropriate
- [ ] I've communicated my changes to consumers by [updating changelogs
for packages I've
changed](https://github.com/MetaMask/core/tree/main/docs/processes/updating-changelogs.md)
- [ ] I've introduced [breaking
changes](https://github.com/MetaMask/core/tree/main/docs/processes/breaking-changes.md)
in this PR and have prepared draft pull requests for clients and
consumer packages to resolve them

<!-- CURSOR_SUMMARY -->
---

> [!NOTE]
> **Low Risk**
> Single mapping correction for Arc in the CodeFi v2 spot-prices table;
no auth, data migration, or broad logic changes.
> 
> **Overview**
> Updates Arc’s **native asset identifier** in
`SPOT_PRICES_SUPPORT_INFO` (`codefi-v2.ts`) from the temporary
`erc20:0x0` placeholder to **`slip44:5042`**, matching the registered
SLIP-44 entry for Arc’s native USDC on chain `5042` / `0x13b2`.
> 
> The **changelog** records this under Fixed for
`@metamask/assets-controllers`.
> 
> <sup>Reviewed by [Cursor Bugbot](https://cursor.com/bugbot) for commit
2e85266. Bugbot is set up for automated
code reviews on this repo. Configure
[here](https://www.cursor.com/dashboard/bugbot).</sup>
<!-- /CURSOR_SUMMARY -->

---------

Co-authored-by: Claude Sonnet 5 <noreply@anthropic.com>

Author: maxime-oe

packages/assets-controllers/CHANGELOG.md

@@ -13,6 +13,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Fixed
 
+- Fix Arc (`5042`/`0x13b2`) native asset ID in `codefi-v2.ts`, from the `erc20:0x0` zero-address placeholder to `slip44:5042` now that Arc has a real SLIP-44 registry entry for its native USDC ([#9681](https://github.com/MetaMask/core/pull/9681))
 - Treat `loan` (not `lending`) as the DeFi liability position type in `DEFI_POSITION_LIABILITY_TYPES`, matching corrected Accounts API v6 position types ([#9683](https://github.com/MetaMask/core/pull/9683))
 
 ## [110.0.0]

packages/assets-controllers/src/token-prices-service/codefi-v2.ts

@@ -290,7 +290,7 @@ export const SPOT_PRICES_SUPPORT_INFO = {
   '0x1079': 'eip155:4217/slip44:60', // Tempo Mainnet - No native asset
   '0x10e6': 'eip155:4326/erc20:0x0000000000000000000000000000000000000000', // MegaETH Mainnet - Native symbol: ETH
   '0x1388': 'eip155:5000/erc20:0xdeaddeaddeaddeaddeaddeaddeaddeaddead0000', // Mantle - Native symbol: MNT
-  '0x13b2': 'eip155:5042/erc20:0x0000000000000000000000000000000000000000', // Arc - Native symbol: USDC
+  '0x13b2': 'eip155:5042/slip44:5042', // Arc - Native symbol: USDC
   '0x1b58': 'eip155:7000/slip44:7000', // ZetaChain - Native symbol: ZETA
   '0x2105': 'eip155:8453/slip44:60', // Base - Native symbol: ETH
   '0x1237': 'eip155:4663/slip44:60', // Robinhood Chain - Native symbol: ETH