Add enhanced filtering to task list command

Implement --status and --namespace filters for task list:

New filters: - --status: Filter by open, in-progress, or done -
--namespace: Filter by namespace (e.g., Omni/Task)

All filters can be combined: - task list --parent=t-abc123
--status=open - task list --type=epic --status=done - task list
--namespace="Omni/Task" --status=open

Updated listTasks signature to accept all filter parameters and apply
them in sequence. Updated AGENTS.md with examples.

Closes task t-PpZGVf

1 files changed, 8 insertions, 3 deletions

diff --git a/AGENTS.md b/AGENTS.md
index ab91f8b..653e8f3 100644
--- a/AGENTS.md
+++ b/AGENTS.md
@@ -52,13 +52,18 @@ The `--namespace` option associates the task with a specific namespace in the mo
 
 ### List Tasks
 ```bash
-task list [--project=<project>]
+task list [--type=<type>] [--parent=<id>] [--status=<status>] [--namespace=<ns>]
 ```
 
 Examples:
 ```bash
-task list                      # All tasks
-task list --project=auth       # Filter by project
+task list                              # All tasks
+task list --type=epic                  # All epics
+task list --parent=t-abc123            # All tasks in an epic
+task list --status=open                # All open tasks
+task list --status=done                # All completed tasks
+task list --namespace="Omni/Task"      # All tasks for a namespace
+task list --parent=t-abc123 --status=open  # Combine filters: open tasks in epic
 ```
 
 ### Get Ready Work