test(reentrancy): ERC1155-callback reentrancy regression for both vault types

[thedavidmeister]

Summary

Adds fuzz-backed reentrancy regression tests covering the ERC1155 acceptance-callback surface documented in issue #316 (rows 1/2/7 of the master reentrancy call-site table).

• OffchainAssetReceiptVault.reentrant.t.sol: testDepositReentrancyGuardFires — a malicious receiver that re-enters vault.deposit from inside onERC1155Received is blocked by the nonReentrant guard; the outer deposit reverts with ReentrancyGuardReentrantCall. testDepositSucceedsWithNonReentrantReceiver — positive control confirming the setup is valid.
• ERC20PriceOracleReceiptVault.reentrant.t.sol: same two tests for the oracle vault variant, exercising the base _beforeDeposit ERC20 transfer path in addition to the receipt callback.

Both tests run 256 fuzz rounds locally (all pass).

No production code changes — test-only addition.

Closes #316

Test plan

• forge test --match-path "test/src/concrete/vault/*reentrant*" — 4/4 pass, 256 fuzz rounds each
• CI rainix-sol/test green
• CI copy-artifacts green (no artifact changes)

🤖 Generated with Claude Code

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ℹ️ Review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: ASSERTIVE

Plan: Pro

Run ID: 0a209176-f1c1-4d4f-bd5d-5a0cbe989ef2

📥 Commits

Reviewing files that changed from the base of the PR and between 8f68b12 and 1d086b8.

📒 Files selected for processing (3)

• .pre-commit-config.yaml
• test/src/concrete/vault/ERC20PriceOracleReceiptVault.reentrant.t.sol
• test/src/concrete/vault/OffchainAssetReceiptVault.reentrant.t.sol

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch 2026-06-21-issue-316-reentrancy-tests

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