Start to implement brute force protection

src/constants.rs

@@ -28,3 +28,7 @@ pub const ADMIN_ROUTES: &str = "/admin";
 
 /// Auth route
 pub const LOGIN_ROUTE: &str = "/login";
+
+/// Bruteforce protection
+pub const KEEP_FAILED_LOGIN_ATTEMPTS_FOR: u64 = 3600;
+pub const MAX_FAILED_LOGIN_ATTEMPTS: u64 = 15;