Field Service - Flow for ISP

This module turns Field Service orders into a controlled pipeline for internet service providers. It adds six new order stages — Confirmed, Requested, Assigned, Scheduled, En Route and Started — each with its own colour, and places action buttons on the order form so dispatchers can move an order forward one step at a time.

• Confirm: moves the order to Confirmed.
• Request: only allowed once workers have been requested on the order; otherwise Odoo shows an error.
• Assign: only allowed once an 'Assigned To' person is set.
• Schedule: only allowed once both an assigned person and a scheduled start date exist.
• En Route: moves the order to En Route.
• Start: only allowed once the actual start date is filled in.
• Complete: only allowed once the actual end date and the resolution text are filled in.

The buttons are visible only to the Field Service dispatcher group and only in the stages where they make sense. In the order list, orders in early stages are highlighted in red and orders in later stages in blue, so the team can see at a glance what still needs attention. A new 'Past Due Orders' filter shows orders whose scheduled start date has passed and that are not yet Started, Completed or Cancelled. Stage changes also trigger the standard Field Service notifications (confirmed, scheduled, assigned, en route, started).