feat(sdk-coin-cosmos): add cosmos shared coin functionalities

[baltiyal]

TICKET: COIN-4881

[Copilot]

Pull Request Overview

This PR adds shared coin functionalities for Cosmos-based cryptocurrencies by implementing a unified SDK that can handle multiple Cosmos chains through configuration rather than requiring individual coin modules.

• Implements a shared Cosmos coin class that uses statics configuration instead of individual modules
• Adds core utilities for address validation, transaction building, and key pair management
• Provides a registration system to automatically register all Cosmos coins with the shared implementation

Reviewed Changes

Copilot reviewed 9 out of 10 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
modules/sdk-coin-cosmos/src/register.ts	Adds registration function to automatically register Cosmos coins using shared implementation
modules/sdk-coin-cosmos/src/lib/utils.ts	Implements Cosmos utilities for address validation and amount validation using network configuration
modules/sdk-coin-cosmos/src/lib/transactionBuilderFactory.ts	Creates transaction builders for various Cosmos transaction types
modules/sdk-coin-cosmos/src/lib/keyPair.ts	Implements key pair management and address derivation for Cosmos networks
modules/sdk-coin-cosmos/src/lib/index.ts	Exports library components for external use
modules/sdk-coin-cosmos/src/index.ts	Updates main module exports to include new shared functionality
modules/sdk-coin-cosmos/src/cosmosSharedCoin.ts	Enhances shared coin implementation with network configuration and concrete method implementations
modules/sdk-coin-cosmos/package.json	Adds required dependencies for Cosmos functionality
modules/bitgo/test/browser/browser.spec.ts	Updates browser test to include CosmosSharedCoin in exclusions

Comments suppressed due to low confidence (1)

modules/sdk-coin-cosmos/src/cosmosSharedCoin.ts:87

• [nitpick] The assertion error message could be more helpful by suggesting what action to take. Consider: env config is missing for ${family} in ${env}. Please ensure the environment configuration includes the nodeUrl for this coin family.

    assert(cosmosConfig?.[family]?.nodeUrl, `env config is missing for ${family} in ${env}`);

[Copilot]

Error message concatenation can result in unclear messages if e.message is undefined. Consider using template literals or ensuring e.message exists: throw new InvalidTransactionError('Invalid transaction: ' + (e.message || 'Unknown error'));

Suggested change

	throw new InvalidTransactionError('Invalid transaction: ' + e.message);
	throw new InvalidTransactionError(`Invalid transaction: ${e.message || 'Unknown error'}`);

[bhavidhingra]

how come so many deletions? is it normal?

[baltiyal]

tbh, not sure.
Cleaned the present yarn-lock and made it again using yarn install and got similar or same result

[baltiyal]

This branch was closed by mistake.
Please review the updated PR: #6548
@MohammedRyaan786 has addressed your comments in the new branch.
@bhavidhingra — the yarn.lock file is not included in the new branch as it was conflicting with master. So, rebased, and it was not needed after that.