Aria Router: third decisioner afm-d / afm-d-…

Parallel semantic | agent | afm-d decisioners with gold entrypoints *-auto; AFM-D calls aria-engine System One.

• Parallel semantic | agent | afm-d decisioners with gold entrypoints *-auto; AFM-D calls aria-engine System One.
• Aria Router now runs **three** decisioners side by side: **semantic**, **agent**, and **afm-d**. Gold OpenAI-compatible entrypoints use the `-auto` suffix (`semantic-auto`, `agent-auto`, `afm-d-auto`). The AFM-D path forwards typed System One requests to a local or remote `aria-engine` endpoint. Validate fail-closed; shared providers stay in YAML. Details on the [Router](/router) product page.