show requested vs achieved Risk Management sizing when exchange limits reduce position size#768

Cornix currently shows a notification when a trade amount is reduced because it surpasses the exchange’s limitation. That message is useful, but it would be much more actionable if the trade details also showed the sizing breakdown.

Requested feature:

When Cornix reduces a position because of an exchange maximum position-size limit, please display:

1. Requested RM %
2. Requested notional size based on RM, wallet/equity, entry, and SL
3. Exchange maximum allowed notional/quantity for that symbol and leverage
4. Actual executed notional/quantity
5. Achieved RM %
6. Difference between requested RM and achieved RM
7. Reason: exchange aggregate position limit

Example:

Requested RM: 0.33%
Wallet: 100,000 USDT
Entry: 1.9472
SL: 1.889983
Stop distance: 2.94%
Requested risk amount: 330 USDT
Requested notional: ~11,224 USDT
Exchange max allowed: ~3,053 USDT
Actual executed notional: ~3,053 USDT
Achieved RM: ~0.09%
Sizing status: reduced due to exchange maximum position limit

This would help users understand whether a trade truly reached the intended Risk Management %, or whether it was clipped by exchange limits.

It would also make RM-based futures sizing much more transparent for larger wallets, lower-liquidity symbols, and higher-leverage settings.