Add ResourceHub for real-time updates and implement web dashboard with REST API

- Created ResourceHub.cs for SignalR group management.
- Developed a modern web dashboard using Tailwind CSS for responsive design.
- Implemented real-time updates with SignalR for CPU, Memory, GPU, and Network usage.
- Added REST API endpoints for resource information and process management.
- Integrated process management features to view and terminate high-usage processes.
- Enhanced UI with loading spinners, notifications, and responsive tables.
- Included performance charts for historical CPU and Memory usage.
- Configured Swagger UI for API documentation.
- Established security features including process kill restrictions and API key authentication.

Startup .cs

@@ -3,29 +3,70 @@ using Microsoft.AspNetCore.Hosting;
 using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Extensions.Hosting;
 using Microsoft.AspNetCore.Http;
+using ResourceMonitorService.Hubs;
+using Microsoft.OpenApi.Models;
 
-public class Startup
+namespace ResourceMonitorService
 {
-    public void ConfigureServices(IServiceCollection services)
+    public class Startup
     {
-        // Add services to the container
-    }
-
-    public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
-    {
-        if (env.IsDevelopment())
+        public void ConfigureServices(IServiceCollection services)
         {
-            app.UseDeveloperExceptionPage();
+            // Add MVC services
+            services.AddControllers()
+                .AddNewtonsoftJson(); // For JSON serialization
+
+            // Add SignalR for real-time updates
+            services.AddSignalR();
+
+            // Add CORS for API access
+            services.AddCors(options =>
+            {
+                options.AddPolicy("AllowAll", builder =>
+                {
+                    builder.AllowAnyOrigin()
+                           .AllowAnyMethod()
+                           .AllowAnyHeader();
+                });
+            });
+
+            // Add Swagger for API documentation
+            services.AddEndpointsApiExplorer();
+            services.AddSwaggerGen(c =>
+            {
+                c.SwaggerDoc("v1", new OpenApiInfo { Title = "Resource Monitor API", Version = "v1" });
+            });
         }
 
-        app.UseRouting();
-
-        app.UseEndpoints(endpoints =>
+        public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
         {
-            endpoints.MapGet("/", async context =>
+            if (env.IsDevelopment())
             {
-                await context.Response.WriteAsync("Hello World!");
+                app.UseDeveloperExceptionPage();
+                app.UseSwagger();
+                app.UseSwaggerUI(c =>
+                {
+                    c.SwaggerEndpoint("/swagger/v1/swagger.json", "Resource Monitor API V1");
+                });
+            }
+
+            // Serve static files (CSS, JS, images)
+            app.UseStaticFiles();
+
+            app.UseRouting();
+            app.UseCors("AllowAll");
+
+            app.UseEndpoints(endpoints =>
+            {
+                // Map API controllers
+                endpoints.MapControllers();
+                
+                // Map SignalR hub
+                endpoints.MapHub<ResourceHub>("/resourceHub");
+
+                // Default route to index.html
+                endpoints.MapFallbackToFile("index.html");
             });
-        });
+        }
     }
 }