MOBILE-390 feat: add per-wallet allocation support to multi-chain NFT songs endpoint

[wlara]

No description provided.

[Copilot]

Pull request overview

This PR adds per-wallet allocation support to the multi-chain NFT songs endpoint. The feature enables tracking which specific wallet connection owns what amount of each NFT, providing more granular ownership information when users have multiple wallets connected. The implementation adds a new allocations field to NFT song models that maps wallet connection IDs to their respective amounts.

Changes:

• Added NftWalletAllocation and AllocatedNativeAsset models to track per-wallet NFT allocations
• Modified Cardano and Ethereum repositories to group NFTs by wallet connection and calculate per-wallet amounts
• Updated NFT song parsers to accept allocation maps and include them in the response models

Reviewed changes

Copilot reviewed 12 out of 12 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
newm-server/src/main/kotlin/io/newm/server/features/nftsong/model/NftWalletAllocation.kt	New data class defining wallet allocation with ID and amount
newm-server/src/main/kotlin/io/newm/server/features/cardano/model/AllocatedNativeAsset.kt	New data class pairing a native asset with its allocations map
newm-server/src/main/kotlin/io/newm/server/features/nftsong/model/NftSong.kt	Added allocations field to NFT song model
newm-server/src/main/kotlin/io/newm/server/features/cardano/model/CardanoNftSong.kt	Added allocations field to Cardano NFT song model
newm-server/src/main/kotlin/io/newm/server/features/ethereum/model/EthereumNftSong.kt	Added allocations field to Ethereum NFT song model
newm-server/src/main/kotlin/io/newm/server/features/cardano/repo/CardanoRepositoryImpl.kt	Refactored to track assets by wallet connection, group duplicates, and calculate per-wallet allocations
newm-server/src/main/kotlin/io/newm/server/features/ethereum/repo/EthereumRepositoryImpl.kt	Refactored to track NFTs by wallet connection and aggregate allocations across wallets
newm-server/src/main/kotlin/io/newm/server/features/cardano/parser/CardanoNftSongParser.kt	Updated to accept allocations parameter and include it in parsed songs
newm-server/src/main/kotlin/io/newm/server/features/ethereum/parser/EthereumNftSongParser.kt	Updated to accept allocations parameter and sum amounts from allocation values
newm-server/src/main/kotlin/io/newm/server/features/nftsong/repo/NftSongRepositoryImpl.kt	Added mapping logic to convert allocation maps to NftWalletAllocation lists
newm-server/src/test/kotlin/io/newm/server/features/cardano/parser/CardanoNftSongParserTests.kt	Updated all test assertions to include test allocations data
newm-server/src/test/kotlin/io/newm/server/features/ethereum/parser/EthereumNftSongParserTests.kt	Updated all test assertions to include test allocations data

[cristhianescobar]

LGTM