Runtime status enum inventory

Holon's stable runtime lifecycle labels are generated from typed Rust enums and checked in as runtime-status-enum-inventory.json.

• Primary source: the named Rust enum definitions and their serde rename attributes.
• Generated inventory: holon::contract_inventory::runtime_status_enum_inventory().
• Drift check: make snapshots-check.
• Refresh: make snapshots-refresh, followed by review of the generated JSON diff.

Current coverage

The first baseline covers:

• AgentStatus
• WorkItemState
• WorkItemPlanStatus
• WorkItemReadiness
• TaskStatus
• WaitConditionStatus
• TimerStatus
• QueueEntryStatus
• ToolResultStatus

The checked values are the serialized snake_case contract, not the Rust variant spelling. Adding or removing a variant, or changing its serialized name, fails the snapshot check until the change is intentionally refreshed.

This inventory is deliberately narrow. It does not classify every internal enum as stable, parse Rust source text, or turn prose-only states into a machine contract.