chore(deps): Update project dependencies and refactor authentication flow

- Upgrade Next.js to version 15.1.7
- Update Drizzle ORM and related dependencies
- Add Nodemailer and related type definitions
- Refactor authentication routes and components
- Modify user schema to include first and last name
- Update authentication configuration and session handling
- Remove deprecated login and register pages
- Restructure authentication-related components and routes

drizzle/meta/_journal.json

@@ -0,0 +1,5 @@
+{
+  "version": "7",
+  "dialect": "postgresql",
+  "entries": []
+}