Dynamic routing via label addition (mentions)

Source: tests/bdd/features/mention.feature

Feature: Dynamic routing via label addition (mentions)
  Adding a label mid-conversation pulls a new agent into the thread.

  @bdd
  Scenario: forge mentions rio mid-conversation
    Given a fresh beads environment with 6 agents
    And "priya" creates a bead "Add payment endpoint" labeled "forge"
    And "forge" claims the bead
    And "forge" comments "STATUS: Implementation done"
    When "forge" adds label "rio" to the bead
    And "forge" comments "QUESTION: @rio please review for security compliance"
    Then "rio" inbox contains 1 bead titled "Add payment endpoint"
    And the bead shows 2 comments
    And the bead has labels "forge,rio"