- Add local Persian fonts: Vazirmatn, Sahel, Shabnam, Lalezar, IranNastaliq
- Configure @font-face in globals.css with all font weights
- Set Vazirmatn as primary font, Lalezar for headings, Sahel for alt text
- Fix Hero image loading with crossOrigin and error fallback
- Fix SmartAdvisor disabled button contrast (WCAG compliance)
- Add visible labels for form inputs in SmartAdvisor step 1
- Fix UserDashboard null safety for walletBalance
- Fix announcement bar hydration mismatch (loading state guard)
- Fix UserDashboard null checks for profile fields
- Improve overall frontend robustness and data-loading guards
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