Used Claude Sonnet 3.5 agent to add license and documentation to all

files in the project

src/bar_modules/bar_module_cpu.rs

@@ -1,3 +1,30 @@
+// MIT License
+// Copyright (c) 2025 Mahesh @ HeshApps
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+// SOFTWARE.
+
+//! CPU usage monitoring module for Unibar
+//!
+//! This module tracks CPU utilization by sampling /proc/stat and calculating
+//! the percentage of time spent in different CPU states. It provides real-time
+//! CPU usage information for display in the status bar.
+
 use std::fs::File;
 use std::io::{self, BufRead, BufReader};
 use std::thread;
@@ -6,6 +33,11 @@ use std::time::Duration;
 use crate::common;
 use crate::bar_modules;
 
+/// Represents CPU time spent in various states
+/// 
+/// This struct holds counters for different CPU states as reported by /proc/stat.
+/// Each field represents the amount of time the CPU has spent in that particular state
+/// since system boot, measured in USER_HZ units (typically 100Hz).
 #[derive(Debug, Default, Clone)]
 struct CpuTimes {
     user:       u64,