fix(tasks): preserve empty pagination cursors - #2211

{ "workflowData": { "owner": "modelcontextprotocol", "repo": "typescript-sdk", "sha": "659e529a5e37f49be4546174b80d242a0111e7e3", "ref": "2211", "headBranch": null }, "key": "mBw5xozqBk", "runId": 26681324199, "webhookDebug": { "action": "requested", "head_branch": "fix/tasks-empty-cursor-pagination", "head_repository_full_name": "he-yufeng/typescript-sdk", "full_name": "modelcontextprotocol/typescript-sdk", "isPullRequest": true, "prNumber": 2211, "prNumberType": "number", "isNewPullRequest": true, "isOldPullRequest": false, "prKey": "he-yufeng/typescript-sdk:fix/tasks-empty-cursor-pagination", "oldPrDataHash": "rca4XgxOMp", "lookupKey": "he-yufeng/typescript-sdk:fix/tasks-empty-cursor-pagination", "data": { "owner": "modelcontextprotocol", "repo": "typescript-sdk", "sha": "659e529a5e37f49be4546174b80d242a0111e7e3", "ref": "2211", "headBranch": null } }, "currentCursor": null, "pkgPrNewVersion": "0.0.75" }