TaskList: include task IDs in displayed output

Summary

The TaskList tool output does not include task IDs alongside task subjects in a way that makes cross-referencing easy. When a task description references another task by number (e.g. \"blocked by #19\"), the user has no way to identify which task that is without calling TaskGet separately.

Requested Change

Include the task ID prominently in the TaskList display, e.g.:

#19 [pending] Configure NFS exports on FreeBSD for Kubernetes persistent volumes
#7  [pending] Create k8s_jenkins role [blocked by #19]

Currently the ID is shown but the association between number and subject requires cross-referencing, especially when tasks reference each other in descriptions.

Use Case

When a task description says \"blocked by #19\", the user should be able to glance at the task list and immediately see what task #19 is without having to ask or call TaskGet.