Emode additional rate guards #441
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programs/marginfi/src/instructions/marginfi_group/configure_bank.rs
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Summary
Implements additional safety guards for emode (efficiency mode) configurations to prevent under-collateralized lending
scenarios. This addresses the risk of emode admins inadvertently or maliciously setting collateral/liability weight
configurations that would allow under-collateralized positions.
Key safeguards:
CW < LW(collateral weight must be strictly less than liability weight) to prevent infinite or negative leverageL = 1 / (1 - CW/LW)max_emode_leveragein bank cache for efficient validation during emode configuration