[brianjfox]

Closes #158

What

docs/BROCHURE.md is rebuilt on the reviewed brochure draft ("Prototyping for vendors and service providers"), illustrated with Builder's own mockup screens.

Why

The brochure draft positions Builder for vendors and service providers who turn client needs into prototypes for proposals, scoping and delivery planning, and lays out four product pictures. The repository had no brochure on main. Details in #158.

Changes

• docs/BROCHURE.md: the draft's positioning, sections and flow (describe, shape, choose a look, watch it get built, take it with you; why teams choose it; where it runs; get started), with facts from the product added: attachment limits, the five planning documents, the widths every page is checked at, three concepts at once, the README and user manual every app ships with, the slide decks and reviewer rounds, the provider choices, and a table of what a project produces.
• docs/images/brochure-approaches.png: the approaches side by side, from the field service dispatch demo.
• docs/images/brochure-design.png, brochure-design-phone.png: the demo's dispatch queue mockup at 1280 px and 390 px, rendered from test/seed/field-service-dispatch/designs/modern-and-sleek.
• docs/images/brochure-concept-habits.png: a second concept from the habit tracker demo, rendered from test/seed/habit-tracker/designs/warm-and-organic.

Two of the draft's pictures are not in this pass, since they need a signed-in Builder screen: the client brief and requirements in the document pane, and the working prototype in the live preview. The text covers both; the pictures can follow.

[corbits-triage]

Triage: In progress

Triage is waiting for CI to finish before it decides. This comment shows the verdict once it has.