Replace the old bbox/heuristic placement (scale search rounds, large-font
capping, stratified sampling, fill-retry ladders) with an area-model font
sizing pass feeding a C++ exact-glyph collision engine (centroid-biased
spiral + random probing, HD clearance refinement, density/hole
optimization). Simplify the frontend advanced-params panel and JobParams
type to match the surviving config surface, add a layout-constraints test
suite and a repeatable benchmark tool, and bring docs/*.md back in sync
with current code (plus new TESTING.md and DEPLOYMENT.md).
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Canvas Studio now uses dockable floating panels, app settings/help navigation, and improved SVG export; the backend adds an SVG line-spacing analysis API with SciPy acceleration and new design templates.
broccoli
