OCA/field-service ? reverse-engineered prompt

Build me an Odoo field service management app for a service company.

I want a setup where I can create field service orders, assign workers and locations, plan visits on a calendar, organize daily routes, and track everything from one place. It should also cover the common extras a real team needs, like CRM lead handoff, sales orders, agreements and recurring jobs, stock used on the job, purchases, repairs, timesheets, expenses, invoices, and a customer portal. If it makes sense, include useful map and kanban views so dispatchers can quickly see what is happening.

Please keep it as a proper Odoo module set that fits the existing community style, with clean forms, menus, and integrations between the pieces. Use current Odoo 19 docs if you need to check anything.