fix: update roadmap timeline to reflect 2025 project start date

Author: Developer

README.md

@@ -499,10 +499,10 @@ VERCEL_URL=https://your-app.vercel.app
 
 | Feature | Status | Timeline |
 |---------|---------|----------|
-| 🎨 Custom Templates | 🚧 In Progress | Q1 2024 |
-| 👥 Collaboration | 📋 Planned | Q2 2024 |
-| 🔐 User Accounts | 💭 Concept | Q3 2024 |
-| 📊 Analytics Dashboard | 💭 Concept | Q4 2024 |
+| 🎨 Custom Templates | 🚧 In Progress | Q4 2025 |
+| 👥 Collaboration | 📋 Planned | Q1 2026 |
+| 🔐 User Accounts | 💭 Concept | Q2 2026 |
+| 📊 Analytics Dashboard | 💭 Concept | Q3 2026 |
 
 ## 🤝 **Contributing**