feat: init pc-monitor project

- Client: Go-based Windows hardware monitoring (CPU, GPU, memory, disk, network, power)
- Server: Go + Gin + SQLite backend with REST API
- Frontend: Vue 3 + Element Plus dashboard
- Docker deployment support
- Windows service installation script

client/collector/collector.go

@@ -0,0 +1,61 @@
+package collector
+
+import (
+	"time"
+)
+
+type Metrics struct {
+	DeviceID  string    `json:"device_id"`
+	Timestamp time.Time `json:"timestamp"`
+
+	CPU    *CPUInfo    `json:"cpu"`
+	Memory *MemoryInfo `json:"memory"`
+	GPU    *GPUInfo    `json:"gpu"`
+	Disks  []DiskInfo  `json:"disks"`
+	Net    []NetInterface `json:"network"`
+	Power  *PowerInfo  `json:"power"`
+}
+
+func CollectAll() (*Metrics, error) {
+	metrics := &Metrics{
+		Timestamp: time.Now(),
+	}
+
+	// Collect CPU
+	cpuInfo, err := CollectCPU()
+	if err == nil {
+		metrics.CPU = cpuInfo
+	}
+
+	// Collect Memory
+	memInfo, err := CollectMemory()
+	if err == nil {
+		metrics.Memory = memInfo
+	}
+
+	// Collect GPU
+	gpuInfo, err := CollectGPU()
+	if err == nil {
+		metrics.GPU = gpuInfo
+	}
+
+	// Collect Disks
+	disks, err := CollectDisks()
+	if err == nil {
+		metrics.Disks = disks
+	}
+
+	// Collect Network
+	nets, err := CollectNetwork()
+	if err == nil {
+		metrics.Net = nets
+	}
+
+	// Collect Power
+	powerInfo, err := CollectPower()
+	if err == nil {
+		metrics.Power = powerInfo
+	}
+
+	return metrics, nil
+}