Use SafeERC20 for reward flows and add non-compliant token tests

[ramGit22]

Summary

• Switched rollup reward withdrawals and fee burns to SafeERC20 helpers so non-standard ERC-20 tokens cannot silently short-change sequencers or provers.
• Hardened staking and governance staking escrow token handling with safeTransfer, safeTransferFrom, and defensive allowance resets to ensure deposits, refunds, and proposal locks revert on failed ERC-20 operations.
• Added a configurable non-compliant ERC-20 mock, enabled builder token overrides, and wrote targeted regression tests that assert SafeERC20 reverts across staking, GSE deposits, and rollup reward claims.

Testing

⚠️ forge test --match-test NonCompliant -vv (forge binary unavailable in container)