#79 — Add ADL E2E threshold test

[IbrahimIjai]

• Priority: P1 | Size: M | Requires: fix: Replace panic! calls with proper error handling and remove dupli… #77
• Description: Create pool imbalance and profitable positions until ADL is required, then trigger it.
• Files: contracts/adl_handler/src/lib.rs, libs/market_utils/src/lib.rs, contracts/order_handler/src/lib.rs.
• Done: ADL triggers only above configured max PnL factor. execute_adl below threshold reverts.

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Source: issues_v2.md, issue #79.