feat(ctb): Make Safe Module and Guard ISemver

packages/contracts-bedrock/src/Safe/LivenessGuard.sol

@@ -6,12 +6,17 @@ import { BaseGuard, GuardManager } from "safe-contracts/base/GuardManager.sol";
 import { ModuleManager } from "safe-contracts/base/ModuleManager.sol";
 import { SignatureDecoder } from "safe-contracts/common/SignatureDecoder.sol";
 import { Enum } from "safe-contracts/common/Enum.sol";
+import { ISemver } from "src/universal/ISemver.sol";
 
-contract LivenessGuard is SignatureDecoder, BaseGuard {
+contract LivenessGuard is ISemver, SignatureDecoder, BaseGuard {
     /// @notice Emitted when a new set of signers is recorded.
     /// @param signers An arrary of signer addresses.
     event SignersRecorded(bytes32 indexed txHash, address[] signers);
 
+    /// @notice Semantic version.
+    /// @custom:semver 1.0.0
+    string public constant version = "1.0.0";
+
     Safe public immutable safe;
     mapping(address => uint256) public lastSigned;
 

packages/contracts-bedrock/src/Safe/LivenessModule.sol

@@ -5,6 +5,7 @@ import { Safe } from "safe-contracts/Safe.sol";
 import { Enum } from "safe-contracts/common/Enum.sol";
 import { OwnerManager } from "safe-contracts/base/OwnerManager.sol";
 import { LivenessGuard } from "src/Safe/LivenessGuard.sol";
+import { ISemver } from "src/universal/ISemver.sol";
 
 // TODO(maurelian): remove me
 import { console2 as console } from "forge-std/console2.sol";
@@ -28,6 +29,10 @@ contract LivenessModule {
     /// @notice The fallback owner of the Safe
     address public fallbackOwner;
 
+    /// @notice Semantic version.
+    /// @custom:semver 1.0.0
+    string public constant version = "1.0.0";
+
     // Constructor to initialize the Safe and baseModule instances
     constructor(
         Safe _safe,