LLM binding (crucial)

[2D]

Add a lightweight intent router: address_intent, nearby_request, booking_intent, cancel_intent.

Prompt‑template with function‑call schema for the 4 intents (tool calls map to the endpoints above).

Guardrails: require coordinates before nearby; require slot before reservation.

DoD: 10 scripted utterances succeed (EN/DE), including fuzzy addresses and “closest & cheapest between 14:00–16:00”.