Fix/gsteenkamp custom bond

[gsteenkamp89]

closes UMA-2945

Fix Custom Bond Currency Matching Logic

Problem

Custom bonds were not being properly matched to price requests based on currency. The system was incorrectly applying custom bonds regardless of currency mismatch.

Solution

• Fixed custom bond entity ID generation: Custom bond entities are now stored with IDs that include the currency address, ensuring proper currency-based matching
• Implemented strict currency matching: Custom bonds are only applied when the request currency exactly matches the custom bond currency
• Removed incorrect currency updates: Request currencies are no longer modified when custom bonds are applied

Key Changes

• Updated handleCustomBondSet to use createCustomBondIdFromEvent for entity ID generation
• Modified getCustomBond to only find custom bonds with matching currencies
• Added test coverage

Technical Details

Custom bond IDs are now generated by hashing: requester + identifier + ancillaryData + currency. This ensures that custom bonds set for different currencies have different IDs, even with identical other parameters, preventing cross-currency bond application.

[linear]

UMA-2945 Subgraph: Fix Custom Bond mismatch

[Reinis-FRP]

why do we need this, isn't it the same as it for CustomLiveness?

[gsteenkamp89]

oh true, we can probably remove it.

[gsteenkamp89]

3bd6928