feat(contracts): implement overflow-safe math library with formal ver…#544
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bashir1738 wants to merge 1 commit into
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feat(contracts): implement overflow-safe math library with formal ver…#544bashir1738 wants to merge 1 commit into
bashir1738 wants to merge 1 commit into
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…ification - Add add, sub, mul, div, pow, sqrt with checked overflow protection - Revert on overflow or underflow across all operations - Add SMT proofs via Z3 verifying no silent overflow for any input - Add signed integer support for collateral and debt calculations - Add fixed-point decimal math at 18 decimals with overflow safety - Replace all raw arithmetic across 16 contract crates with library - Add property-based tests validating against BigInt reference - Keep checked math overhead under 10% vs unchecked baseline - Add documentation with mathematical formulas and proof references Closes Smartdevs17#518
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…ification
Closes #518