feat: MOBILE-388 - add multi-chain NFT song api

[wlara]

No description provided.

[cristhianescobar]

👍🏼

[Copilot]

Pull request overview

This PR adds a new multi-chain NFT song API that aggregates NFT songs from both Cardano and Ethereum blockchains. The implementation includes Ktor version upgrade to 3.4.0 and adds response compression for the new endpoint.

Changes:

• Adds unified /v1/nft/songs endpoint combining Cardano and Ethereum NFT songs
• Upgrades Ktor from 3.3.3 to 3.4.0 and adds compression plugins (gzip, deflate, zstd)
• Refactors Ethereum repository to accept userId instead of owner address (includes temporary test hook for @newm.io emails)

Reviewed changes

Copilot reviewed 18 out of 19 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
buildSrc/src/main/kotlin/Versions.kt	Updates Ktor version to 3.4.0
buildSrc/src/main/kotlin/Dependencies.kt	Adds Ktor compression and zstd dependencies
newm-server/build.gradle.kts	Adds server compression dependencies
newm-server/src/main/resources/application.conf	Configures compression for NFT song endpoint
newm-server/src/main/kotlin/io/newm/server/compression/CompressionInstall.kt	Implements compression plugin installation
newm-server/src/main/kotlin/io/newm/server/Application.kt	Registers compression plugin and NFT song routes
newm-server/src/main/kotlin/io/newm/server/features/nftsong/model/*.kt	Defines unified NFT song data models with chain-specific metadata
newm-server/src/main/kotlin/io/newm/server/features/nftsong/repo/*.kt	Implements repository aggregating Cardano and Ethereum NFT songs
newm-server/src/main/kotlin/io/newm/server/features/nftsong/NftSongRoutes.kt	Adds authenticated GET endpoint for multi-chain NFT songs
newm-server/src/main/kotlin/io/newm/server/features/nftsong/NftSongKoinModule.kt	Registers NFT song repository in DI container
newm-server/src/main/kotlin/io/newm/server/features/ethereum/repo/*.kt	Changes method signature to use userId and adds temporary test hook
newm-server/src/main/kotlin/io/newm/server/features/ethereum/EthereumRoutes.kt	Simplifies route to use userId from auth context
newm-server/src/main/kotlin/io/newm/server/features/ethereum/EthereumKoinModule.kt	Adds Ethereum repository registration in DI
newm-server/src/main/kotlin/io/newm/server/di/DependencyInjectionInstall.kt	Registers NFT song module
newm-server/src/main/kotlin/io/newm/server/features/user/repo/UserRepositoryImpl.kt	Refactors when expression to use subject instead of conditions