7b5abc6ad9
Clicking an .html/.htm file now renders it instead of showing its source or downloading it: - Changes/Files panel: a whole HTML file opens on Preview (Raw = the editor). - Chat file preview: a workspace page brings its relative files along. - File Explorer: double-click / Enter opens a viewer; Download stays on its header and right-click menu. The page runs in the chat artifact's sandbox (iframe srcdoc, scripts, never allow-same-origin). Its relative stylesheets (and their url()s), scripts, images, media and icons are read by the dashboard through the existing download routes and inlined as <style>/data: URLs (lib/htmlInline.ts: never above the folder's root, ≤ 60 files / 30 MB) — the login cookie is SameSite=Strict, so a frame could not fetch them itself, and no new route serves files without it.