v1.4.2 – OASMNR user experience polish

A focused release on user feedback and backend stability.

• 🧮 Totals card – quickly see number of OASMNR assessments

• ✅ Confirmation messages – users get feedback after submitting

• 📊 Expand all charts – see full range of data, not just top 10

• 🚫 Duplicate patient error messages – clearer validation

• 📧 Onboarding email for trial accounts

• 🛠️ Small fixes to Patient ID, DOB field, and tooltips

• ⚙️ Backend upgrades – PostgreSQL and validation improvements