gen-art

# Original work from a brief The studio is infrastructure. The program is the art. Never restrict a new brief to the example's flowers, palette or layout. Build the new system in these files: - `sketch/project.json`: `spec: "fieldwork/1"`, a stable lowercase `id`, title, brief, seed, named `formats` with width/height in pixels, `controls`, and optional image `assets`. - `sketch/artwork.js`: JavaScript function body returning SVG children as a string. - `sketch/DESIGN.md`: the brief, decisions, requested deliverables, revisions and evidence. - `studio/`: reusable UI and runtime. Change it only when the task needs a new authoring capability. ## Renderer contract The function receives `width`, `height`, `seed`, `values`, `assets`, `rng` and `svg`. `rng('named-stream')` returns a stable random-number function. Never use time or `Math.random()` for the geometry. `values` contains the current control values; `assets.name` is an embedded image URL or an empty string. `svg.el(tag, attributes, children)` and `svg.text(text, attributes)` escape attributes and text. The latter is essential for the person's real text (including `&` and `<`). ```js const r = rng('constellation'); const marks = Array.from({length: values.stars}, () => svg.el('circle', { cx: r() * width, cy: r() * height, r: 1 + r() * 4, fill: values.ink })); return svg.el('rect', {width, height, fill: values.paper}) + marks.join(''); ``` That tiny example illustrates the contract, not an acceptable finished commi...