Phase 7 of the roadmap: the orchestration engine (resolving 006's
hierarchy nodes and capability-eligibility lookup against an escalated
ticket), pluggable assignment strategies (ROUND_ROBIN/LEAST_LOADED/
SKILL_BASED/MANUAL/DIRECT) with concurrency-safe round robin, and
durable assignment history. Explicitly excludes SLA/escalation-policy
execution (Phase 8). Triggered via 005's existing domain-event
publishing rather than a new notification path.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
