feat(build): save ckERC20 metadata

[AntonioVentilii]

Motivation

Ideally we would like to have the ckERC20 metadata already in the code base, to avoid fetching them at runtime, for each user. So, we duplicate what we do for the SNS tokens and fetch and save the metadata in the scripts that build the ckERC20 JSON file.

The next step will be to use such data and remove the fetching in the code.

Changes

• Create some utils for building tokens, for example to get metadata and to create an agent.
• Create more types/schemas to have env ck ERC20 tokens with metadata and icons.
• Fetch metadata when building the orchestrators info.
• Split the metadata that we need from the icons.
• Change method saveTokenLogo to simply use the data already fetched.

Tests

I first injected a few changes in tokens.ckerc20.json and then run the script on this PR.

PR Overview

This PR introduces changes to include ckERC20 token metadata directly in the codebase, avoiding runtime metadata fetching by leveraging build-time scripts and schema updates.

• Introduce utilities in build.tokens.utils.ts to fetch and load token metadata.
• Update build.tokens.ckerc20.ts to accumulate tokens and icons with metadata and adjust logo saving.
• Enhance token and metadata schemas and types to support the new metadata structure.

Reviewed Changes

File	Description
scripts/build.tokens.utils.ts	Adds utility functions to fetch and load token metadata
scripts/build.tokens.ckerc20.ts	Refactors orchestrator info building & updates token logo saving
src/frontend/src/env/schema/env-token-ckerc20.schema.ts	Updates schemas to merge token metadata with icons
src/frontend/src/env/types/env-icrc-token.ts	Adjusts type definitions for token metadata with icon
src/frontend/src/env/schema/env-icrc-token.schema.ts	Merges metadata and icon schemas into one combined schema
src/frontend/src/env/types/env-token-ckerc20.ts	Adds new type for tokens with metadata based on updated schema

Copilot reviewed 7 out of 7 changed files in this pull request and generated no comments.

Comments suppressed due to low confidence (2)

scripts/build.tokens.ckerc20.ts:113

• [nitpick] Using an async reduce can obscure error handling and reduce code clarity. Consider refactoring this accumulate logic to use an explicit for-of loop to improve maintainability.

return await Object.entries(tokens).reduce<Promise<TokensAndIcons>>(

scripts/build.tokens.ckerc20.ts:161

• This line assumes a fixed format for logoData. Adding validation or error handling for the split operation could prevent potential runtime errors if the data format changes.

const [encoding, encodedStr] = logoData.split(';')[1].split(',');

PR Overview

This PR integrates ckERC20 token metadata into the codebase to avoid runtime fetching by enriching token data and icons during build time. Key changes include:

• Refactoring the build tokens script to load metadata and combine tokens with associated icons.
• Updating and merging schemas and types to support token metadata.
• Adding a new tokens utility module to encapsulate agent creation and metadata loading functions.

Reviewed Changes

File	Description
scripts/build.tokens.ckerc20.ts	Updated the orchestrator info builder to load metadata and icons
src/frontend/src/env/schema/env-token-ckerc20.schema.ts	Merged metadata into the ckERC20 token schema
src/frontend/src/env/schema/env-icrc-token.schema.ts	Added a merged metadata with icon schema
src/frontend/src/env/types/env-token-ckerc20.ts	Introduced type for tokens with metadata
src/frontend/src/env/types/env-icrc-token.ts	Updated type definition to use the merged metadata schema
scripts/build.tokens.utils.ts	New module for creating the agent and loading token metadata

Copilot reviewed 7 out of 7 changed files in this pull request and generated no comments.