fix: msg.sender is avs

src/contracts/core/RewardsCoordinator.sol

@@ -210,14 +210,12 @@ contract RewardsCoordinator is
     /*
      * @notice Facilitates the distribution of rewards to participants through the UniPRInt V1.1 system.
      * @dev The function leverages AVS-defined logic and external data for reward calculations.
-     * @param avs The address of the AVS responsible for managing the reward distribution.
      * @param token The address of the ERC20 token used for rewards.
      * @param amount The total amount of tokens to be rewarded.
      * @param contentHash The keccak256 hash of the JSON manifest file that lists the earners and their rewards.
      * @param contentURI The URI where the JSON manifest file is publicly accessible.
      */
     function rewardParticipants(
-        address avs,
         IERC20 token,
         uint256 amount,
         bytes32 contentHash,
@@ -227,7 +225,7 @@ contract RewardsCoordinator is
         token.safeTransferFrom(msg.sender, address(this), amount);
 
         // Emit event indicating a direct reward payment.
-        emit DirectRewardPayment(msg.sender, avs, token, amount, contentHash, contentURI);
+        emit DirectRewardPayment(msg.sender, token, amount, contentHash, contentURI);
     }
 
     /**

src/contracts/interfaces/IRewardsCoordinator.sol

@@ -178,14 +178,12 @@ interface IRewardsCoordinator {
 
     /// @notice Emitted when a direct reward payment is initiated through the UniPRInt V1.1 system.
     /// @dev Supports programmatic rewards for AVS performance, EIGEN incentives, and more.
-    /// @param sender The address that initiated the reward payment (msg.sender).
     /// @param avs The address of the AVS managing this reward.
     /// @param token The address of the ERC20 token used for payment.
     /// @param amount The total amount of tokens transferred to the RewardsCoordinator.
     /// @param contentHash The keccak256 hash of the JSON manifest file listing the earners and amounts.
     /// @param contentURI The publicly addressable URI pointing to the JSON manifest file.
     event DirectRewardPayment(
-        address indexed sender,
         address indexed avs,
         IERC20 token,
         uint256 amount,
@@ -303,14 +301,12 @@ interface IRewardsCoordinator {
    /**
     * @notice Facilitates the distribution of rewards to participants through the UniPRInt V1.1 system.
     * @dev The function leverages AVS-defined logic and external data for reward calculations.
-    * @param avs The address of the AVS responsible for managing the reward distribution.
     * @param token The address of the ERC20 token used for rewards.
     * @param totalAmount The total amount of tokens to be transferred to the RewardsCoordinator.
     * @param contentHash The keccak256 hash of the JSON manifest file that lists the earners and their rewards.
     * @param contentURI The URI where the JSON manifest file is publicly accessible.
     */
     function rewardParticipants(
-        address avs,
         IERC20 token,
         uint256 totalAmount,
         bytes32 contentHash,

src/test/unit/RewardsCoordinatorUnit.t.sol

@@ -2278,7 +2278,6 @@ contract RewardsCoordinatorUnitTests_processClaim is RewardsCoordinatorUnitTests
 
 contract RewardParticipantsTest is RewardsCoordinatorUnitTests {
     event DirectRewardPayment(
-        address indexed sender,
         address indexed avs,
         IERC20 token,
         uint256 amount,
@@ -2291,10 +2290,10 @@ contract RewardParticipantsTest is RewardsCoordinatorUnitTests {
         rewardToken.approve(address(rewardsCoordinator), mockTokenInitialSupply);
         cheats.expectEmit(true, true, true, false);
         emit DirectRewardPayment(
-            address(this), address(this), rewardToken, mockTokenInitialSupply, keccak256("content"), "content-uri"
+            address(this), rewardToken, mockTokenInitialSupply, keccak256("content"), "content-uri"
         );
         rewardsCoordinator.rewardParticipants(
-            address(this), rewardToken, mockTokenInitialSupply, keccak256("content"), "content-uri"
+            rewardToken, mockTokenInitialSupply, keccak256("content"), "content-uri"
         );
     }
 }