refactor wallet

[jinglescode]

Summary

• Refactor getDrep() and add getDrep() to MeshWallet
• add init() to MeshWallet endpoints, so it will init for developers if they havent

Affect components

Please indicate which part of the Mesh Repo

• @meshsdk/common
• @meshsdk/contract
• @meshsdk/core
• @meshsdk/core-csl
• @meshsdk/core-cst
• @meshsdk/hydra
• @meshsdk/provider
• @meshsdk/react
• @meshsdk/svelte
• @meshsdk/transaction
• @meshsdk/wallet
• Mesh playground (i.e. https://meshjs.dev/)
• Mesh CLI

Type of Change

Please mark the relevant option(s) for your pull request:

• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Bug fix (non-breaking change which fixes an issue)
• Code refactoring (improving code quality without changing its behavior)
• Documentation update (adding or updating documentation related to the project)

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Name	Status	Preview	Comments	Updated (UTC)
mesh-docs	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Mar 31, 2025 3:48pm
mesh-playground	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Mar 31, 2025 3:48pm