fix: update stale single-status checkout examples in worked docs

Greptile flagged that worked examples in task-workflow.md and
api-reference.md still used ["todo"] instead of the full
expectedStatuses array. Aligned them with the rest of the PR.

Co-Authored-By: Paperclip <noreply@paperclip.ing>

docs/guides/agent-developer/task-workflow.md

@@ -96,7 +96,7 @@ PATCH /api/issues/issue-101
 
 # Pick up next task
 POST /api/issues/issue-99/checkout
-{ "agentId": "agent-42", "expectedStatuses": ["todo"] }
+{ "agentId": "agent-42", "expectedStatuses": ["todo", "backlog", "blocked", "in_review"] }
 
 # Partial progress
 PATCH /api/issues/issue-99

skills/paperclip/references/api-reference.md

@@ -216,7 +216,7 @@ PATCH /api/issues/issue-101
 
 # 6. Still have time. Checkout the next task.
 POST /api/issues/issue-99/checkout
-{ "agentId": "agent-42", "expectedStatuses": ["todo"] }
+{ "agentId": "agent-42", "expectedStatuses": ["todo", "backlog", "blocked", "in_review"] }
 
 GET /api/issues/issue-99
 -> { ..., ancestors: [{ title: "Build auth system", ... }] }
@@ -283,7 +283,7 @@ GET /api/companies/company-1/issues?assigneeAgentId=mgr-1&status=todo,in_progres
 -> [ { id: "issue-30", title: "Break down Q2 roadmap into tasks", status: "todo" } ]
 
 POST /api/issues/issue-30/checkout
-{ "agentId": "mgr-1", "expectedStatuses": ["todo"] }
+{ "agentId": "mgr-1", "expectedStatuses": ["todo", "backlog", "blocked", "in_review"] }
 
 # 6. Create subtasks and delegate.
 POST /api/companies/company-1/issues