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Feat/concurrency and race safety #2560

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c0c08ef
resource and rate limits
Nwoyemartha Aug 31, 2026
ea37a4d
feat:replay and idempotency
Nwoyemartha Aug 31, 2026
4e3871d
feat:concurrency and race safety
Nwoyemartha Aug 31, 2026
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1 change: 1 addition & 0 deletions TEST_OUTPUT.md
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Expand Up @@ -24,3 +24,4 @@ When validating limits, specifically boundaries, off-by-one errors frequently ha
- **Invoice Amount**: Prevented an off-by-one vulnerability where `min_invoice_amount` check in `admin.rs` and `init.rs` only validated `cfg.min_invoice_amount == 0`. It was fixed to `cfg.min_invoice_amount <= 0` to properly reject negative invalid bounds.
- **Due Date**: The `max_due_date_days` has been rigorously verified to allow exactly `730` but fail securely at `731`.
- **Business Capacity**: Validated the `max_invoices_per_business` boundary. For a limit $N$, the protocol properly permits the $N^{th}$ creation and completely blocks the $(N+1)^{th}$ creation, preventing state exhaustion.

4 changes: 4 additions & 0 deletions TODO.md
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Expand Up @@ -21,3 +21,7 @@
- [ ] Run `cargo test -p quicklendx-contracts --lib` to verify all 9 tests pass
- [ ] Run `cargo clippy --workspace --all-targets -- -D warnings`





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