feat: Captain::Reservation callback cria nota interna automaticamente

Cobre ambos os caminhos (generate_pix_tool e PublicReservationsController):
toda reserva criada recebe um after_create_commit que posta uma mensagem
privada na conversa com os detalhes (suite, check-in, valores, ID).

Remove a criacao duplicada do PublicReservationsController.

app/controllers/public/api/v1/captain/public_reservations_controller.rb

@@ -56,13 +56,8 @@ class Public::Api::V1::Captain::PublicReservationsController < ActionController:
       contact_inbox: contact_inbox
     ).perform
 
-    initial_note = build_initial_note(params)
-
-    Messages::MessageBuilder.new(
-      nil,
-      conversation,
-      { content: initial_note, message_type: 'outgoing', private: true }
-    ).perform
+    # Nota: o model Captain::Reservation#post_internal_reservation_note ja cria
+    # a nota interna automaticamente via after_create_commit. Nao duplicamos aqui.
 
     reservation = Captain::Reservation.create!(
       account: account,

enterprise/app/models/captain/reservation.rb

@@ -89,6 +89,7 @@ class Captain::Reservation < ApplicationRecord
   before_validation :set_captain_unit_id, on: :create
   after_commit :sync_conversation_marker_snapshot
   after_create_commit :update_contact_reservation_metadata
+  after_create_commit :post_internal_reservation_note
 
   def ui_status
     Captain::Reservations::MarkerBuilder.ui_status(status)
@@ -127,6 +128,38 @@ class Captain::Reservation < ApplicationRecord
     Rails.logger.error("[Captain::Reservation] failed to sync conversation marker: #{e.class} - #{e.message}")
   end
 
+  # Cria uma nota interna (privada) na conversa com os detalhes da reserva
+  # recem criada. A atendente humana ve tudo em um so lugar.
+  # rubocop:disable Metrics/AbcSize,Metrics/MethodLength
+  def post_internal_reservation_note
+    return if conversation.blank?
+
+    meta = metadata.to_h
+    deposit = meta['deposit_amount'].to_f
+    deposit = (total_amount.to_f / 2.0) if deposit <= 0
+
+    check_in_fmt = check_in_at&.strftime('%d/%m/%Y %H:%M') || '—'
+    category = meta['category'].presence || suite_identifier
+
+    content = [
+      '🛎️ *Nova reserva criada*',
+      "Suíte: #{category}",
+      "Check-in: #{check_in_fmt}",
+      "Valor total: R$ #{format('%.2f', total_amount.to_f)}",
+      "Sinal (PIX 50%): R$ #{format('%.2f', deposit)}",
+      "Reserva ##{id}"
+    ].join("\n")
+
+    Messages::MessageBuilder.new(
+      nil,
+      conversation,
+      { content: content, message_type: 'outgoing', private: true }
+    ).perform
+  rescue StandardError => e
+    Rails.logger.warn("[Captain::Reservation] failed to post internal note: #{e.class} - #{e.message}")
+  end
+  # rubocop:enable Metrics/AbcSize,Metrics/MethodLength
+
   # Atualiza campos visiveis no painel lateral do Chatwoot (custom_attributes)
   # pra que a recepcionista veja num relance:
   #   ultima_suite, ultima_permanencia, ultima_reserva_em, total_reservas