Initial config with email service test

backend/app/services/email_service.py

@@ -70,4 +70,14 @@ def send_verification_email(email: str, username: str, verification_url: str) ->
 
 
 def send_test_email(email: str) -> None:
-    send_message(email, 'LinkLog SMTP test', 'This is a test message from LinkLog. SMTP is configured correctly.\n')
+    send_message(email, 'LinkLog SMTP test', 'This is a test message from LinkLog. SMTP is configured correctly.\n')
+
+
+def send_password_reset_email(email: str, username: str, reset_url: str) -> None:
+    send_message(
+        email,
+        'Reset your LinkLog password',
+        f'Hello {username},\n\n'
+        f'Reset your LinkLog password by opening this link:\n{reset_url}\n\n'
+        f'This link expires in {settings.password_reset_expiry_hours} hours.\n',
+    )