471c480824
User report: "the dropdown for changing the site font does not work." Root cause: FontSettingsSection listed Cairo / Tajawal / Noto Naskh Arabic / Amiri, but only Tajawal had been registered with @font-face. Picking the others was a no-op. Site default body font was also not DIN Next LT Arabic as designed. Changes: - artifacts/tx-os/src/index.css: --app-font-sans now starts with "DIN Next LT Arabic"; dropped IBM Plex Mono. - artifacts/tx-os/index.html: removed Google Fonts <link> + preconnect. - artifacts/tx-os/src/pages/executive-meetings.tsx: FontSettingsSection dropdown replaced with the 5 actually-bundled families + system. - artifacts/api-server/src/routes/executive-meetings.ts: FONT_FAMILIES Zod allowlist updated to match. - artifacts/api-server/src/lib/sanitize.ts: FONT_NAME_PART regex now allows the new families (kept IBM Plex Sans Arabic for backward compat). Fixes a latent bug from #301 where the rich-text sanitizer silently stripped attendee font picks on save. - artifacts/api-server/src/lib/pdf-renderer.ts: FAMILY_MAP and ARABIC_FONT_NAMES updated. Sans-style families map to the bundled NotoSansArabic; Naskh-style families to NotoNaskhArabic. - artifacts/api-server/tests/executive-meetings.test.mjs: PDF sans-vs-naskh assertion updated from Cairo/Noto Naskh Arabic to DIN Next LT Arabic/Majalla, preserving its semantics. Other Cairo/Noto Naskh Arabic occurrences swapped to the new names. - replit.md: documented site default font + lockstep allowlist rule. Deviations from plan: kept DEFAULT_FONT.fontFamily = "system" on the frontend (and the backend Zod default) instead of changing it to "DIN Next LT Arabic". "system" semantically means "no override → use the CSS default", which is now DIN Next LT Arabic — same end result without forcing a migration on existing rows. The sanitizer change was not in the original plan but was required to make the picker actually persist. Verification: - Frontend tsc clean. - Backend tsc shows the same pre-existing unrelated errors as before (isHighlighted boolean/number; Drizzle scope typing). - E2E browser test verified all 7 assertions: site default font, no Google Fonts requests, exactly 6 dropdown options, font picker applies + reverts correctly, attendee font picks persist after save. - Code review verdict: PASS.