feat: add device management and queue management routes

- Add /devices route for device management interface
- Add /conflicts route for sync conflict resolution
- Add /queue route for sync queue management
- Add comprehensive tests for device cap management
- Add test suite for queue management

cmd/server/main.go

@@ -423,6 +423,72 @@ func main() {
 		return c.HTML(http.StatusOK, buf.String())
 	})
 
+	// Device Management route (protected)
+	protected.GET("/devices", func(c echo.Context) error {
+		userID := c.Get("user_id").(string)
+		userEmail := c.Get("user_email").(string)
+		userUsername := c.Get("user_username").(string)
+		userRole := c.Get("user_role").(string)
+
+		user := templates.User{
+			ID:       userID,
+			Email:    userEmail,
+			Username: userUsername,
+			Role:     userRole,
+		}
+
+		var buf bytes.Buffer
+		err := templates.Devices(user).Render(c.Request().Context(), &buf)
+		if err != nil {
+			return err
+		}
+		return c.HTML(http.StatusOK, buf.String())
+	})
+
+	// Conflicts route (protected)
+	protected.GET("/conflicts", func(c echo.Context) error {
+		userID := c.Get("user_id").(string)
+		userEmail := c.Get("user_email").(string)
+		userUsername := c.Get("user_username").(string)
+		userRole := c.Get("user_role").(string)
+
+		user := templates.User{
+			ID:       userID,
+			Email:    userEmail,
+			Username: userUsername,
+			Role:     userRole,
+		}
+
+		var buf bytes.Buffer
+		err := templates.Conflicts(user).Render(c.Request().Context(), &buf)
+		if err != nil {
+			return err
+		}
+		return c.HTML(http.StatusOK, buf.String())
+	})
+
+	// Queue Management route (protected)
+	protected.GET("/queue", func(c echo.Context) error {
+		userID := c.Get("user_id").(string)
+		userEmail := c.Get("user_email").(string)
+		userUsername := c.Get("user_username").(string)
+		userRole := c.Get("user_role").(string)
+
+		user := templates.User{
+			ID:       userID,
+			Email:    userEmail,
+			Username: userUsername,
+			Role:     userRole,
+		}
+
+		var buf bytes.Buffer
+		err := templates.Queue(user).Render(c.Request().Context(), &buf)
+		if err != nil {
+			return err
+		}
+		return c.HTML(http.StatusOK, buf.String())
+	})
+
 	// Start server
 	log.Printf("Starting server on port %s", cfg.ServerPort)
 	e.Logger.Fatal(e.Start(":" + cfg.ServerPort))