fix(currency): wrong ID retrieval for native USDC

[alexandre-abrioux-rf]

Issue

When retrieving the native USDC currency on matic:

• id: USDCn-matic
• symbol: USDC
• chain: matic

; with currencyManager.from(<symbol>, <chain>), it retrieves the wrong currency:

• id: USDC-matic
• symbol: USDC.e
• chain: matic

Changes

• Added a test to surface the issue
• Added a fix

[alexandre-abrioux-rf]

(unrelated) These folders should be ignored / they can appear when running Jest from the root folder

[greptile-apps]

Confidence Score: 4/5

The PR should not merge as a fix for default-manager Polygon USDC lookup until the default currency list supports the intended result.

Findings

1.  Default lookup remains wrong ▶

Summary

The PR changes symbol-and-network lookup to use an existing currency’s ID, adds a native Polygon USDC test using a custom list, and ignores root-level test output directories.

• The test demonstrates the new lookup behavior for a custom manager, but not for the default manager.

_{Reviews (1) · Last reviewed commit: "fix the test"}

[alexandre-abrioux-rf]

I kept the existing static contract, and introduced an optional argument so an instance of CurrencyManager can pass down its existing known currencies whenever possible. I could not change it to a non-static method easily because it is also used in static fromInput.