Add logic to query account balances on RaindexVaultToken

[findolor]

Caution

Do not merge before #1994

Motivation

See issue: #1968

This PRs improves the usage of user balances in user facing applications by introducing a new wasm binding in RaindexVaultToken to fetch account balance

Solution

Checks

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• made this PR as small as possible
• unit-tested any new functionality
• linked any relevant issues or PRs
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Summary by CodeRabbit

• New Features

  • Added the ability to fetch and display user token balances with both raw and formatted values directly from the vault interface.

• Refactor

  • Simplified balance retrieval in deposit and withdraw modals by using a unified method that returns both raw and formatted balances.
  • Updated UI components to display preformatted balance strings, improving clarity and consistency.

• Bug Fixes

  • Improved error handling when retrieving user balances.

• Tests

  • Enhanced and added tests to validate the new balance-fetching logic and formatted display.

[coderabbitai]

Walkthrough

This change introduces a new abstraction for retrieving ERC20 token balances, centralizing balance-fetching logic in the backend and exposing it through higher-level methods in the vault abstraction. UI components and tests are refactored to use this new approach, eliminating direct blockchain calls and formatting logic from the frontend.

Changes

File(s)	Change Summary
crates/common/src/erc20.rs	Added async method get_account_balance to ERC20 for querying ERC20 balances; added test for this method.
crates/common/src/raindex_client/vaults.rs	Introduced AccountBalance struct; added async methods to RaindexVault for retrieving and formatting owner balances; added corresponding test.
packages/orderbook/test/js_api/raindexClient.test.ts	Added test for fetching and formatting vault owner balance via new abstraction.
packages/ui-components/src/lib/services/historicalOrderCharts.ts	Refactored to use preformatted balance strings instead of formatting BigInt amounts; updated test fixtures accordingly.
packages/webapp/src/tests/DepositModal.test.ts packages/webapp/src/tests/WithdrawModal.test.ts	Refactored tests to mock balance retrieval via getOwnerBalance on the vault, removing all @wagmi/core and chain-switching mocks; removed related chain switch failure tests.
packages/webapp/src/lib/components/DepositModal.svelte packages/webapp/src/lib/components/WithdrawModal.svelte	Refactored to fetch user balance via vault.getOwnerBalance(), using AccountBalance for both raw and formatted values; removed direct blockchain interaction and formatting logic from UI.
tauri-app/src/lib/components/ModalVaultDeposit.svelte	Updated to use AccountBalance object from vault.getOwnerBalance() for balance retrieval and display; removed direct balance checking and formatting.

Sequence Diagram(s)

sequenceDiagram
    participant UI_Component as UI Component (Deposit/Withdraw Modal)
    participant Vault as RaindexVault
    participant ERC20 as ERC20 Helper
    participant ChainClient as RPC Client

    UI_Component->>Vault: getOwnerBalance()
    Vault->>ERC20: get_account_balance(owner_address)
    ERC20->>ChainClient: readContract(balanceOf, owner_address)
    ChainClient-->>ERC20: U256 balance
    ERC20-->>Vault: U256 balance
    Vault->>Vault: format balance (using decimals)
    Vault-->>UI_Component: AccountBalance { balance, formattedBalance }
    UI_Component->>UI_Component: Display formattedBalance

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Suggested labels

rust

Suggested reviewers

• 0xgleb
• hardyjosh

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Updating crates.io index
Updating git repository `https://github.com/rainlanguage/rain.wasm`

error: failed to get wasm-bindgen-utils as a dependency of package rain_orderbook_bindings v0.0.0-alpha.0 (/crates/bindings)

Caused by:
failed to load source for dependency wasm-bindgen-utils

Caused by:
Unable to update https://github.com/rainlanguage/rain.wasm?rev=06990d85a0b7c55378a1c8cca4dd9e2bc34a596a#06990d85

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failed to create directory /usr/local/git/db/rain.wasm-45eded9facc525c2

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Permission denied (os error 13)

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Actionable comments posted: 1