Initial commit: TopManager macOS system monitor

A native SwiftUI app for monitoring macOS system resources:
- Processes tab with sorting, filtering, and process control
- Apps tab for running applications
- Performance tab with CPU, memory, and network charts
- Power & Storage tab with system info, GPU, storage, and network

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

README.md

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+# TopManager
+
+A native macOS system monitor application built with SwiftUI. TopManager provides real-time monitoring of system resources including processes, applications, CPU, memory, GPU, storage, and network.
+
+![macOS](https://img.shields.io/badge/macOS-13.0+-blue)
+![Swift](https://img.shields.io/badge/Swift-5.9-orange)
+![License](https://img.shields.io/badge/License-GPL--3.0-green)
+
+## Features
+
+### Processes Tab
+- View all running processes with CPU, memory, and thread information
+- Sort by any column (name, PID, CPU%, memory, threads, user, state)
+- Process states: Running, Sleeping, Stopped, Zombie
+- Context menu to terminate, force kill, suspend, or resume processes
+- Search processes by name or PID
+
+### Apps Tab
+- View running user-facing applications
+- Shows app icons, CPU/memory usage, and bundle identifiers
+- Quick actions: Activate, Hide, Quit, Force Quit
+- Copy bundle ID to clipboard
+
+### Performance Tab
+- Real-time CPU usage graphs (global and per-core)
+- Memory usage visualization with donut chart
+- Network throughput monitoring
+- Support for Apple Silicon P-cores and E-cores
+
+### Power & Storage Tab
+- System status: macOS version, uptime, thermal state
+- CPU and GPU core counts
+- GPU memory/VRAM usage
+- Storage volumes with usage bars
+- Network interface statistics
+
+## Requirements
+
+- macOS 13.0 or later
+- Xcode 15.0 or later (for building)
+
+## Building
+
+1. Clone the repository:
+   ```bash
+   git clone https://github.com/yourusername/TopManager.git
+   ```
+
+2. Open `TopManager.xcodeproj` in Xcode
+
+3. Build and run (⌘R)
+
+## License
+
+This project is licensed under the GNU General Public License v3.0 - see the [LICENSE](LICENSE) file for details.
+
+## Acknowledgments
+
+Built with SwiftUI and native macOS APIs including:
+- `libproc` for process information
+- `IOKit` for GPU and hardware monitoring
+- `Metal` for GPU detection
+- `SystemConfiguration` for network monitoring