[ADD] Fee amount usd

[LikoIlya]

Summary by CodeRabbit

• New Features

  • Added support for returning the bridge fee amount in USD in relevant API responses.
  • Introduced utilities for converting token amounts between raw and decimal representations.

• Bug Fixes

  • None.

• Chores

  • Updated workflows to trigger on an additional branch ("fee-amount-usd") for Docker image publishing.
  • Minor formatting improvements in receipt controller.

• Refactor

  • Simplified and updated fee calculation logic to compute bridge fees in USD before converting to native token units.

[coderabbitai]

Walkthrough

The changes update GitHub Actions workflows to trigger on an additional branch, introduce and propagate bridge fee calculations in USD across the backend, and add utility functions for token decimal conversions. The API schema and controller logic are updated to include and return the USD fee amount, while some code formatting and minor refactoring are also applied.

Changes

File(s)	Change Summary
.github/workflows/publish-back-core.yaml .github/workflows/publish-indexer-evm.yaml .github/workflows/publish-indexer-svm.yaml	Workflows now trigger on both main and fee-amount-usd branches.
backend/back-core/src/controllers/receipt.controller.ts	Minor formatting: whitespace adjustment and blank line added; no logic changes.
backend/back-core/src/controllers/send-signature.controller.ts	Removed address index option from mnemonic derivation; getSendSignature now includes and returns feeAmountUsd.
backend/back-core/src/fee/bridgeFee.ts	Renamed and refactored function to compute bridge fee in USD only; simplified signature and logic.
backend/back-core/src/fee/fee.ts	Fee calculation now in USD first, then converted to native coin; returns feeAmountUsd in result.
backend/back-core/src/fee/token-prices.ts	Added convertFromDecimals and convertToDecimals utility functions for token amount conversions.
backend/back-core/src/routes/utils.ts	Added feeAmountUsd property to sendPayloadResponseSchema with OpenAPI metadata.

Sequence Diagram(s)

sequenceDiagram
    participant Client
    participant SendSignatureController
    participant FeeModule (getFees)
    participant BridgeFee
    participant TokenPrices

    Client->>SendSignatureController: Request send signature
    SendSignatureController->>FeeModule (getFees): Calculate fees (networkFrom, networkTo, tokenAddr, amount, isMaxAmount)
    FeeModule (getFees)->>BridgeFee: getBridgeFeeUSD(tokenUsdPrice, amount, minBridgeFeeUSD)
    BridgeFee-->>FeeModule (getFees): feeAmountUsd
    FeeModule (getFees)->>TokenPrices: usd2Coin(feeAmountUsd, price)
    TokenPrices-->>FeeModule (getFees): feeAmount (native)
    FeeModule (getFees)-->>SendSignatureController: { feeAmountUsd, feeAmount, amountToSend }
    SendSignatureController-->>Client: Respond with signature and feeAmountUsd

Loading

Poem

The fee now speaks in dollars too,
A hop, a skip—conversion’s new!
From tokens raw to decimals bright,
We count the coins and get it right.
Workflows leap on branches wide,
As rabbits code with cheerful pride! 🐇💸

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📜 Recent review details

Configuration used: CodeRabbit UI
Review profile: CHILL
Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between 5689dfa and 52396b3.

📒 Files selected for processing (2)

• backend/back-core/src/controllers/receipt.controller.ts (2 hunks)
• backend/back-core/src/fee/fee.ts (3 hunks)

🚧 Files skipped from review as they are similar to previous changes (2)

• backend/back-core/src/controllers/receipt.controller.ts
• backend/back-core/src/fee/fee.ts

✨ Finishing Touches

• 📝 Generate Docstrings

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