"""Core: world state, tree, and the agentic orchestrator.

Note: world_state and tree are safe leaf modules. Orchestrator pulls in agents
and tools, so it is NOT imported at package load to avoid a circular import
(tools.voice -> core.world_state). Import it explicitly:
    from echo.core.orchestrator import Orchestrator
"""
from .world_state import WorldState, LifeFacts, EmotionalTone, root_state
from .tree import LifeTree