refactor: Update PeerInfo to extract and store comprehensive device information

pkg/gateway/internal/session/context.go

@@ -48,11 +48,15 @@ func (s *HTTPContext) InitSession() error {
 	result := s.db.Where("id = ?", sessionID).First(&sess)
 	if result.Error != nil {
 		// Create new session if not found
-		bn, bv := extractBrowserInfo(s.Context)
+		bn, bv, arch, plat, platVer, model := extractBrowserInfo(s.Context)
 		sess = database.Session{
 			ID:               sessionID,
 			BrowserName:      bn,
 			BrowserVersion:   bv,
+			UserArchitecture: arch,
+			Platform:         plat,
+			PlatformVersion:  platVer,
+			DeviceModel:      model,
 		}
 		if err := s.db.Create(&sess).Error; err != nil {
 			return err

pkg/gateway/internal/session/middleware.go

@@ -22,30 +22,51 @@ func Middleware(db *gorm.DB) echo.MiddlewareFunc {
 	}
 }
 
-func extractBrowserInfo(c echo.Context) (string, string) {
-	userAgent := common.HeaderRead(c, common.UserAgent)
-	if userAgent == "" {
-		return "N/A", "-1"
+func extractBrowserInfo(c echo.Context) (string, string, string, string, string, string) {
+	// Extract all relevant headers
+	browserName := common.HeaderRead(c, common.UserAgent)
+	arch := common.HeaderRead(c, common.Architecture)
+	platform := common.HeaderRead(c, common.Platform)
+	platformVer := common.HeaderRead(c, common.PlatformVersion)
+	model := common.HeaderRead(c, common.Model)
+	fullVersionList := common.HeaderRead(c, common.FullVersionList)
+
+	// Default values if headers are empty
+	if browserName == "" {
+		browserName = "N/A"
+	}
+	if arch == "" {
+		arch = "unknown"
+	}
+	if platform == "" {
+		platform = "unknown"
+	}
+	if platformVer == "" {
+		platformVer = "unknown"
+	}
+	if model == "" {
+		model = "unknown"
 	}
 
-	var name, ver string
-	entries := strings.Split(strings.TrimSpace(userAgent), ",")
+	// Extract browser version from full version list
+	version := "-1"
+	if fullVersionList != "" {
+		entries := strings.Split(strings.TrimSpace(fullVersionList), ",")
 		for _, entry := range entries {
 			entry = strings.TrimSpace(entry)
 			re := regexp.MustCompile(`"([^"]+)";v="([^"]+)"`)
 			matches := re.FindStringSubmatch(entry)
 
 			if len(matches) == 3 {
-			browserName := matches[1]
-			version := matches[2]
-
-			if browserName != common.BrowserNameUnknown.String() &&
-				browserName != common.BrowserNameChromium.String() {
-				name = browserName
-				ver = version
+				browserName = matches[1]
+				version = matches[2]
+				if browserName != "Not.A/Brand" && 
+				   browserName != "Chromium" {
 					break
 				}
 			}
 		}
-	return name, ver
+	}
+
+	return browserName, version, arch, platform, platformVer, model
 }