better password management

utils/email_templates.py

@@ -16,7 +16,10 @@ def create_default_templates():
             'body': '''
             <h2>Welcome to DocuPulse!</h2>
             <p>Dear {{ user.username }},</p>
-            <p>Your account has been successfully created. You can now log in and start using DocuPulse.</p>
+            <p>Your account has been successfully created by {{ created_by }}. To get started, you need to set up your password.</p>
+            <p>Click the link below to set up your password (this link will expire in 24 hours):</p>
+            <p><a href="{{ setup_link }}">Set Up Password</a></p>
+            <p>If you didn't receive this email or if the link has expired, please contact your administrator to request a new password setup link.</p>
             <p>If you have any questions, please don't hesitate to contact our support team.</p>
             <p>Best regards,<br>The DocuPulse Team</p>
             '''