systemprompt-identifiers 0.4.0

Typed newtype identifiers (UserId, TraceId, AgentId, McpServerId…) for systemprompt.io AI governance infrastructure. Enforces type-safe IDs across every boundary in the MCP governance pipeline.
Documentation
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crate::define_id!(PolicyVersion);

impl PolicyVersion {
    pub fn unversioned() -> Self {
        Self("unversioned".to_string())
    }
}