feat(safe): add Safe API Kit dependency for verification

- Added @safe-global/api-kit@^4.1.0
- Required by verify_safe.cjs for Safe Transaction Service API calls
- Supports checksummed address validation and on-chain cross-checks

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Author: BotID Developer