Feature: /close command — terminate a session

  Background:
    Given user "user_abc123" is sending commands

  Scenario: No sessions returns error
    When user sends "/close"
    Then reply contains "No sessions to close"

  Scenario: Close active session by default
    Given user has session "sess01" in "/tmp/proj1"
    And active session is "sess01"
    When user sends "/close"
    Then reply contains "Closed session"
    And session manager has 0 sessions for user "user_abc123"

  Scenario: Close session by number
    Given user has session "sess01" in "/tmp/proj1"
    And user has session "sess02" in "/tmp/proj2"
    When user sends "/close 1"
    Then reply contains "Closed session"
    And session manager has 1 session for user "user_abc123"

  Scenario: Invalid number returns error
    Given user has session "sess01" in "/tmp/proj1"
    When user sends "/close 9"
    Then reply contains "Invalid session number"

  Scenario: Cannot close another user's session
    Given session "sess01" in "/tmp/proj1" belongs to user "other_user"
    When user sends "/close sess01"
    Then reply contains "belongs to another user"

  Scenario: Closing active session clears active conv
    Given user has session "sess01" in "/tmp/proj1"
    And active session is "sess01"
    When user sends "/close"
    Then active session for user "user_abc123" is None