kin: KIN-127-backend_dev

web/api.py

@@ -660,14 +660,19 @@ def list_tasks(
     limit: int = Query(default=20, ge=1, le=500),
     sort: str = Query(default="updated_at"),
     project_id: str | None = Query(default=None),
+    parent_task_id: str | None = Query(default=None),
 ):
-    """List tasks with optional filters. sort defaults to updated_at desc."""
+    """List tasks with optional filters. sort defaults to updated_at desc.
+
+    parent_task_id: filter by parent task. Use '__none__' to get root tasks only.
+    """
     from core.models import VALID_TASK_SORT_FIELDS
     conn = get_conn()
     tasks = models.list_tasks(
         conn,
         project_id=project_id,
         status=status,
+        parent_task_id=parent_task_id,
         limit=limit,
         sort=sort if sort in VALID_TASK_SORT_FIELDS else "updated_at",
         sort_dir="desc",
@@ -686,6 +691,19 @@ def get_task(task_id: str):
     return t
 
 
+@app.get("/api/tasks/{task_id}/children")
+def get_task_children(task_id: str):
+    """Get direct child tasks of a given task."""
+    conn = get_conn()
+    t = models.get_task(conn, task_id)
+    if not t:
+        conn.close()
+        raise HTTPException(404, f"Task '{task_id}' not found")
+    children = models.get_children(conn, task_id)
+    conn.close()
+    return children
+
+
 class TaskCreate(BaseModel):
     project_id: str
     title: str