feat(frontend): Do not validate balance if user is minting account

[AntonioVentilii]

Motivation

Some users are defining their OISY accounts as minting accounts of ICRC tokens. So, they need to have specific flows dedicated in these cases: for example, to create a Mint transaction, the minting account must send tokens out, and it can happen without balance.

Changes

• Check if the user is the minting account inside the IC send flow.
• Ignore balance validation in IcSendAmount if positive.

Tests

A practical test below: I temporarily made the OISY wallet as minting account of a fake ICRC, and, with zero balance, sent to another wallet.

Screen.Recording.2025-11-06.at.21.35.58.mov

[Copilot]

Pull request overview

This PR enables OISY users who have their accounts configured as minting accounts for ICRC tokens to perform mint transactions without requiring balance validation. This is essential for minting accounts which need to send tokens (mint transactions) even when their balance is zero.

Key Changes

• Added conditional balance validation bypass in the IC send flow when the user is identified as a minting account
• Updated UI to enable outflow actions (send/convert buttons) for minting accounts even with zero balance
• Added comprehensive test coverage for the new minting account send behavior

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 1 comment.

File	Description
src/frontend/src/icp/components/send/IcSendAmount.svelte	Added early return in validation logic to skip balance checks when user is a minting account
src/frontend/src/lib/components/hero/HeroContent.svelte	Modified outflow action disable logic to account for minting account status, allowing actions with zero balance
src/frontend/src/tests/icp/components/send/IcSendAmount.spec.ts	Added test case verifying no balance error is shown for minting accounts with insufficient funds

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