spec: Add "AI Actor Naming Standard" specification

[mindpower]

This PR introduces the "AI Actor Naming Standard," a foundational specification for ensuring interoperability, discovery within the AI agent ecosystem.

Summary

As AI agents begin to interact across organizational boundaries, the lack of a common naming protocol creates ambiguity and hinders discovery. This standard solves this by defining a secure, multi-layer naming system that separates an agent's human-readable name from its stable, machine-readable logical address.

Core ### Concepts
The standard is built on two primary fields:

1. displayName (Short Name): A human-readable name used for discovery in UIs (e.g., "Google Tax Bot"). This name can be simple, intuitive, and is not required to be unique.

2. identifier (Agent Identifier): A globally unique, immutable logical address that follows a URN (Uniform Resource Name) convention. This acts as the permanent handle that developers use to reference the agent, ensuring stability even if underlying infrastructures change.

The URN Specification (identifier)

The identifier provides a verifiable and hierarchical naming structure. It MUST follow the format: urn:agent:<publisher-domain>:<namespace>:<agent-name>

• This format establishes clear domain authority () and allows for organized namespaces (e.g., productivity, finance).
• Example: urn:agent:salesforce.com:productivity:slide-generator