Please make the following focused improvements to app/lia_ure.py:

1) HANDLE REPLIES AFTER WE OFFER TIME SLOTS

Right now, when Lia offers two time slots (e.g. 9:00am or 11:00am) and the customer replies with "11", it falls through to the generic T1 reply.

Add an early branch in generate_lia_reply() for the situation where:

- customer_state.get("last_reply_type") == "APPOINTMENT_TIME_CHOICES"

In that case we should:

a) Read the pending options from state. When we sent the slots, store them like this:

   - In the vague time window branch (where we reply "I’ve got two slots available..."):
       * For morning:
           customer_state["pending_slot_options"] = ["9:00am", "11:00am"]
       * For afternoon:
           customer_state["pending_slot_options"] = ["1:00pm", "4:00pm"]
       * For evening:
           customer_state["pending_slot_options"] = ["5:30pm", "7:00pm"]
       * Also store the original inbound text so we can pull out the day word later:
           customer_state["pending_slot_context"] = inbound_text

       last_reply_type should already be set to "APPOINTMENT_TIME_CHOICES".

b) At the top of generate_lia_reply(), after checking opted_out but BEFORE any other handlers, add logic:

   - If last_reply_type == "APPOINTMENT_TIME_CHOICES" and there is a "pending_slot_options" list:

        * Normalise inbound_text to body_lower.
        * Try to match the chosen option:
            - For each option in pending_slot_options:
                - Take a simple "key" such as:
                    - the hour part ("9", "11", "1", "4", "5", "7")
                    - or the full "9:00", "11:00", "1:00" etc.
                - If that key appears in body_lower (e.g. the customer replies "11", "11am", "11:00") then treat that option as chosen_time and break.

        * If none of the options match, just fall through to the normal logic (T1/T2/etc).

        * If we do match a chosen_time:
            - Extract a simple day word from pending_slot_context if possible, e.g.:

                  day_word = None
                  context_lower = customer_state.get("pending_slot_context", "").lower()
                  for d in DAY_WORDS:
                      if d in context_lower:
                          day_word = d.capitalize()
                          break

            - Build a confirmation string that includes the day and time:

                  raw_name = customer_state.get("customer_name")
                  name = raw_name if raw_name else "there"

                  if day_word:
                      when_text = f"{day_word} at {chosen_time}"
                  else:
                      when_text = chosen_time

                  reply = (
                      f"Thanks {name} – I’ve booked you in for {when_text} at Lincoln Audi.\n\n"
                      "I’ll send you a reminder beforehand and let you know who your point of contact will be when you arrive.\n\n"
                      "If anything changes, just drop me a quick message here and I’ll be happy to move it."
                  )

            - Update state:

                  customer_state["appointment_status"] = "BOOKED"
                  customer_state["appointment_confirmed_text"] = inbound_text
                  customer_state["appointment_confirmed_at"] = datetime.now(timezone.utc).isoformat()
                  customer_state["last_message"] = inbound_text
                  customer_state["last_reply_type"] = "APPOINTMENT_CONFIRMED"
                  customer_state["pending_slot_options"] = None
                  customer_state["pending_slot_context"] = None

            - RETURN reply, customer_state immediately so we don’t fall through into T1/T2 logic.

2) MAKE SURE NAME FALLBACK IS NOT "Unknown"

Anywhere in these new branches where you use the customer name, please use:

   raw_name = customer_state.get("customer_name")
   name = raw_name if raw_name else "there"

so the message reads "Thanks there" or "No problem, there" instead of "Unknown" when we don’t have a name.

3) (OPTIONAL COMMENT ONLY)

We’re not yet turning the day into a real calendar date (dd/mm), so leave that for a future step. For now, "Saturday at 11:00am" is fine as the confirmation text.

After these changes, please run:  python -m app.lia_ure  to ensure the module still runs without errors.