Feature Request – Flexible Leverage Parsing#630

Currently, signals with leverage caps fail to parse, e.g.:

Channel: [TEST] siGGnals
Symbol: BTC/USDT

The signal you've just posted was not parsed properly:
Couldn't find an exchange that supports this leverage for this symbol.

Proposal: Allow notation like
Leverage: Isolated UpTo (200X)

Instead of throwing an error, the bot should automatically select the highest available leverage up to the specified cap (e.g. if the exchange supports 50x, 100x, or 125x, the bot should pick the maximum ≤ 200x).

This avoids failed parsing and makes signals more flexible across multiple exchanges.