Add flag in Filfillment solidity struct to indicate is imageId is claimDigest

Author: ec2

contracts/src/BoundlessMarket.sol

@@ -255,8 +255,10 @@ contract BoundlessMarket is
         // Verify the application receipts.
         for (uint256 i = 0; i < fills.length; i++) {
             Fulfillment calldata fill = fills[i];
-
-            bytes32 claimDigest = ReceiptClaimLib.ok(fill.imageId, sha256(fill.journal)).digest();
+            bytes32 claimDigest = fill.imageId;
+            if (!fill.isClaimDigest) {
+                claimDigest = ReceiptClaimLib.ok(fill.imageId, sha256(fill.journal)).digest();
+            }
             leaves[i] = AssessorCommitment(i, fill.id, fill.requestDigest, claimDigest).eip712Digest();
 
             // If the requestor did not specify a selector, we verify with DEFAULT_MAX_GAS_FOR_VERIFY gas limit.

contracts/src/types/Fulfillment.sol

@@ -28,6 +28,9 @@ struct Fulfillment {
     /// @notice Cryptographic proof for the validity of the execution results.
     /// @dev This will be sent to the `IRiscZeroVerifier` associated with this contract.
     bytes seal;
+    /// @notice Flag to indicate that the imageID is a claim digest.
+    /// @dev If true, the imageId is a claim digest instead of an image ID.
+    bool isClaimDigest;
 }
 
 library FulfillmentLibrary {}