🐛 Submitting Info Action from Proposal Discussion Forum Fails with “Insufficient Balance” (Brave + Eternl) on mainnet

### Area

Proposal Pillar

### Domain

gov.tools

### Which wallet were you using?

Eternl + Brave

### Context

A user cannot submit an **Info Action** from the **Proposal Discussion Forum** on **GovTool mainnet**. The UI/WC reports **“insufficient balance”**, despite the wallet having enough ADA for the deposit and fees and ~10 UTXOs available.
- Browser/Wallet: **Brave + Eternl**
- Not reproducible on **preview.gov.tools** using **Chrome + Eternl**
- Proposal: https://gov.tools/proposal_discussion/314
- Proposer address: `addr1q9hw8fuex09vr3rqwtn4fzh9qxjlzjzh8aww684ln0rv0cfu3f0de6qkmh7c7yysfz808978wwe6ll30wu8l3cgvgdjqa7egnl`

### Steps to reproduce

1. Open **gov.tools** (mainnet) in **Brave**.
2. Connect **Eternl** wallet holding sufficient ADA and ~10 UTXOs.
3. Open the proposal: https://gov.tools/proposal_discussion/314
4. Attempt to **Submit as Governance Action** (Info Action).
5. Observe the submission flow until the wallet displays the error.

### Actual behavior

- Wallet/UI shows **“insufficient balance”**.
- Transaction cannot be submitted on **mainnet** with **Brave + Eternl** for the given proposal/wallet.
- Same flow works on **preview.gov.tools** with **Chrome + Eternl**.

### Expected behavior

- If the wallet has sufficient ADA (covering deposit + fees) and valid UTXOs, submission should proceed to signing and broadcast successfully.
- No false **insufficient balance** error should be shown.