fix: logout without custom timestamp is useless

sdgb-cli/src/commands.rs

@@ -31,11 +31,14 @@ pub enum Commands {
         variant: AuthLiteVariant,
     },
 
+    // below are login-free
     Ping,
     Preview {
         #[arg(short, long)]
         user_id: u32,
     },
+
+    // below requires login
     Userdata {
         #[arg(short, long)]
         user_id: u32,
@@ -52,5 +55,12 @@ pub enum Commands {
     Logout {
         #[arg(short, long)]
         user_id: u32,
+        /// Second-precision login unix timestamp, must be the same as on `login`
+        ///
+        /// For official arcades, it's commonly the time `amdaemon.exe` starts
+        ///
+        /// For unofficial clients, it depends.
+        #[arg(short, long)]
+        timestamp: u64,
     },
 }