feat: add initial project structure with logging and watchdog service

Implement basic watchdog service for Linux systemd with:
- Configuration loading
- Logging system with database support
- WebSocket log broadcasting
- TCP server for agent communication
- Project setup with Go modules

config.go

@@ -0,0 +1,29 @@
+package main
+
+
+import (
+	"Watchdog_Linux-systemd/postLog"
+	"encoding/json"
+	"fmt"
+	"os"
+)
+
+var Config struct {
+	DebugMode bool `json:"debugMode"`
+}
+
+func loadConfig() {
+	configFile, err := os.Open("config.json")
+	if err != nil {
+		postLog.Fatal(fmt.Sprintf("Failed to open config file: %v, err: %v", configFile, err))
+	}
+	defer configFile.Close()
+	decoder := json.NewDecoder(configFile)
+	if err := decoder.Decode(&Config); err != nil {
+		postLog.Fatal(fmt.Sprintf("Failed to decode config file: %v, err: %v", configFile, err))
+	}
+	
+	if Config.DebugMode {
+		isDebug = true
+	}
+}