forked from 1b-agent/opencadstudio-upstream
Ported from2c38de53(#1717). Main already carries the hatch PDF draw order fix (#1345), the numeric set_properties compare (#1348) and the web open from bytes, so those parts stay out; what remains: #1349 — window.ocsControl.ready/request promise wrapper with an ocs-ready event (web/ocs-control.js, loaded by the web page), and the startup donation prompt is suppressed once a control request is seen (opt-in pre-boot via localStorage["opencadstudio.automation"] = "1"). docs/automation/web.md documents both. The control protocol stays at 1. DATALINK CSV-to-table works on web (picker + bytes through the session registry — was std::fs, silently dead); COLORSCHEME accepts System (prefers-color-scheme on web, AppsUseLightTheme on Windows). Decode accounting, made honest per the fix-of-fix review: into_rgba8 allocates the RGBA destination while the native buffer is alive for every non-Rgba8 layout (L8 5, La8 6, Rgb8 7, L16 6, La16 8 B/px peaks — the formula now says so), GIF bills the screen+frame coexistence at 8 B/px, and TIFF drops the 3x multipliers both ways — tiff 0.11 splits the given budget between frame and scratch (a total ceiling), so the old double-billing refused honest 16-bit GeoTIFFs ~2.25x early while admitting hostile chunk transients at 3x. (cherry picked from commit2c38de53)