Added an optional targetBranch parameter to the getListPullRequestsTool function to filter pull requests by the target branch they were merged into.
Modified the query construction to include the targetBranch filter if provided.
Ensured that if no targetBranch is specified, the query defaults to searching for pull requests merged to the default branch or those with no target_branch specified (legacy behavior).
targetBranchparameter to thegetListPullRequestsToolfunction to filter pull requests by the target branch they were merged into.targetBranchfilter if provided.targetBranchis specified, the query defaults to searching for pull requests merged to the default branch or those with notarget_branchspecified (legacy behavior).