docs

• ORIGIN.md — where webtyp comes from: a clinic, a gastroscopy screen that JavaScript made painful, and the first Go-in-WebAssembly experiment.
• UI_CONSISTENCY_DESIGN.md — the form, title and colour rules every module screen follows, with the reasoning and prior art.
• SELFHOST_DOCKER_DESIGN.md — why every self-hosted webtyp app is deployed with Docker Compose and one signed image per version, and what the manual path cost.
• diagrams/TRANSPORT_CRUD_ARCHITECTURE.md — end-to-end transport, validation, and RBAC flow (form/view → rpc/mcp/loopback → httpd/security → crud.Mount* vs raw reg.Operation → module → orm).