Remove the --namespace/-n option from the agents plan list CLI command
as it is not defined in the specification. The spec defines:
agents plan list [--phase <PHASE>] [--state <STATE>]
[--project <PROJECT>] [--action <ACTION>] [<REGEX>]
Namespace filtering is already supported via the positional <REGEX>
argument (e.g. 'agents plan list "^myteam/"').
Changes:
- Remove namespace parameter from lifecycle_list_plans() function
- Remove namespace=namespace from service.list_plans() call
- Remove Namespace row from TUI Filters panel
- Update docstring examples to remove --namespace references
- Update filter panel condition to exclude namespace check
- Remove 4 namespace-related scenarios from plan_cli_spec_alignment.feature
- Remove corresponding step definitions from plan_cli_spec_alignment_steps.py
ISSUES CLOSED: #2986
freemo