phase2: add modular apps, auth scaffolding, and base template routing

apps/users/forms.py

@@ -0,0 +1,18 @@
+from django import forms
+from django.contrib.auth.forms import UserCreationForm
+from django.contrib.auth.models import User
+
+
+class SignupForm(UserCreationForm):
+    email = forms.EmailField(required=True)
+
+    class Meta:
+        model = User
+        fields = ("username", "email", "password1", "password2")
+
+    def save(self, commit=True):
+        user = super().save(commit=False)
+        user.email = self.cleaned_data["email"]
+        if commit:
+            user.save()
+        return user