Replace unwrap_or with BigNumberFormatter for Tron stake amount parsing - #923

Addresses feedback to use BigNumberFormatter instead of unwrap_or(0) for parsing stake amounts in Tron preload logic, ensuring proper error propagation and consistent number formatting.

Changes:

• Replace input.value.parse::<u64>().unwrap_or(0) / 10_u64.pow(asset.decimals as u32) with BigNumberFormatter::value_as_u64(&input.value, asset.decimals as u32)? for decimal conversion
• Replace input.value.parse().unwrap_or(0) with BigNumberFormatter::value_as_u64(&input.value, 0)? for base unit parsing
• Add number_formatter dependency to gem_tron crate with rpc feature

Before:

let amount = input.value.parse::<u64>().unwrap_or(0) / 10_u64.pow(asset.decimals as u32);
// ...
return Ok(TronStakeData::Unfreeze(calculate_unfreeze_amounts(
    account.frozen_v2.as_ref(), 
    input.value.parse().unwrap_or(0)
)));

After:

let amount = BigNumberFormatter::value_as_u64(&input.value, asset.decimals as u32)?;
// ...
return Ok(TronStakeData::Unfreeze(calculate_unfreeze_amounts(
    account.frozen_v2.as_ref(),
    BigNumberFormatter::value_as_u64(&input.value, 0)?
)));

💡 You can make Copilot smarter by setting up custom instructions, customizing its development environment and configuring Model Context Protocol (MCP) servers. Learn more Copilot coding agent tips in the docs.