feat(tasks): adopt canonical task statuses

flows/task.yaml

@@ -1,11 +1,15 @@
 id: custodian.task.v1
 entity_type: task
 workstations:
+  - name: wait
+    description: Task is waiting on another actor, event, decision, input, or condition.
+    entry_assertions: []
+    exit_assertions: []
   - name: todo
     description: Task is known but not currently underway.
     entry_assertions: []
     exit_assertions: []
-  - name: in_progress
+  - name: progress
     description: Task is being actively worked.
     entry_assertions:
       - id: task.needs_human_false
@@ -19,25 +23,11 @@ workstations:
         op: all_eq
         value: false
         description: Human intervention is not currently required.
-  - name: blocked
-    description: Task is blocked by a human decision or unavailable input.
-    entry_assertions:
-      - id: task.needs_human_true
-        target: needs_human
-        op: all_eq
-        value: true
-        description: The task requires human intervention.
-    exit_assertions:
-      - id: task.needs_human_false
-        target: needs_human
-        op: all_eq
-        value: false
-        description: Human intervention has been cleared.
   - name: done
     description: Task is complete.
     entry_assertions: []
     exit_assertions: []
-  - name: cancelled
+  - name: cancel
     description: Task is intentionally not being completed.
     entry_assertions: []
     exit_assertions: []