fix: boss feedback Ch1 summary, line breaks, and snapshot example anchoring

feat: prompt realism overhaul, solo reveal skip, and UI readability fixes

fix: accessibility, focus rings, ARIA, dynamic imports, and form labels

feat: add error boundaries and pre-workshop health check

fix: add reveal error recovery, runtime chapter guards, and code quality fixes

fix: remove platform-specific esbuild dep that broke Vercel deploy

feat: add facilitator dashboard with live progress and AI-curated debrief

fix: surface actual error from createSoloSession to client

fix: make Play Solo a first-class button alongside Create/Join

feat: add solo mode for single-player practice and demos

fix: session persistence — extend expiry to 24h and add room-code reconnection

fix: fonts, timer, transitions, and chapter polish

fix: playtest-driven UX fixes across all chapters

fix: playtest bug fixes and UX improvements

fix: UX improvements across chapters