## Summary
- Add zero address validation across all functions that accept address
parameters to prevent misconfiguration
- Fix race condition in `buildNewValidatorSetMessage()` that could cause
reverts during validator deregistration
- Refactor contract for improved readability and reduced code
duplication
- Update AVS metadata URL to point to the correct hosted JSON file
## Changes
### Security & Validation
- Add `ZeroAddress` error and validate all address inputs in
`initialize`, `setRewardsInitiator`, `setSnowbridgeGateway`,
`addValidatorToAllowlist`, `registerOperator`, and
`updateSolochainAddressForValidator`
- Fix race condition: filter out zero solochain addresses in
`buildNewValidatorSetMessage()` to prevent reverts when a validator is
mid-deregistration
### Refactoring
- Replace verbose `if/revert` patterns with `require` statements for
consistency
- Inline single-use internal functions (`_createDataHavenOperatorSets`,
`_setRewardsInitiator`)
- Consolidate duplicate error types into single `ZeroAddress` error
- Rename `initialise` → `initialize` to maintain consistency with the
transparent upgradability pattern
- Optimize validator set message encoding by removing redundant wrapper
function
### Observability
- Add `SolochainAddressUpdated` event for tracking validator address
changes
### Cleanup
- Remove unused remappings from `foundry.toml`
- Fix typo in metadata description
---------
Co-authored-by: Steve Degosserie <723552+stiiifff@users.noreply.github.com>
## Key changes
- Add CLI command to update AVS metadata URI on-chain via
`updateAVSMetadataURI` function. Use:
- `bun cli contracts update-metadata --chain <...> --uri <...>`
- Support for multiple chains (tipicaly holesky, hoodi, or a mainnet)
- Tx confirmation and gas usage reporting
---------
Co-authored-by: Steve Degosserie <723552+stiiifff@users.noreply.github.com>
