v2.0.0

Feature

• Removing legacy orchestrators (#185) (7cf953f)
• Unify CLI/Ray connector processing and add a pluggy connector plugin system (#182) (52a79ca)

Fix

• Guard task start transition before mutating Redis status (#184) (e9d66d1)
• ray: Task-lifecycle metrics via monotonic Redis counters (#181) (a65608d)
• Propagate structured failure categories into document error items (#183) (6e31f81)

Breaking

• removing legacy orchestrators (#185) (7cf953f)