Update user data fields to allow for optional names and longer password hashes

Modify the User model in models.py to make first_name and last_name nullable, and increase the password_hash field length to 256 characters.

Replit-Commit-Author: Agent
Replit-Commit-Session-Id: 7e4aa02f-d866-4efb-bfc5-02b478b7e651
Replit-Commit-Checkpoint-Type: full_checkpoint
Replit-Commit-Screenshot-Url: https://storage.googleapis.com/screenshot-production-us-central1/647fe97b-dcb3-4460-a83e-a704627f902a/7e4aa02f-d866-4efb-bfc5-02b478b7e651/RgXjEFc

Author: rootgov

.replit

@@ -1,6 +1,6 @@
 
 run = "python3 main.py"
-modules = ["python-3.12"]
+modules = ["python-3.12", "postgresql-16"]
 
 [nix]
 channel = "stable-22_11"

models.py

@@ -18,9 +18,9 @@ class User(UserMixin, db.Model):
     id = db.Column(db.Integer, primary_key=True)
     username = db.Column(db.String(80), unique=True, nullable=False)
     email = db.Column(db.String(120), unique=True, nullable=False)
-    password_hash = db.Column(db.String(128), nullable=False)
-    first_name = db.Column(db.String(50), nullable=False)
-    last_name = db.Column(db.String(50), nullable=False)
+    password_hash = db.Column(db.String(256), nullable=False)
+    first_name = db.Column(db.String(50), nullable=True)
+    last_name = db.Column(db.String(50), nullable=True)
     role = db.Column(db.String(50), nullable=False, default="user")
     department_id = db.Column(db.Integer, db.ForeignKey("departments.id"))
     is_active = db.Column(db.Boolean, default=True)