Add project files.

CalendarReminder.Api/Program.cs

@@ -0,0 +1,60 @@
+using CalendarReminder.Api.Data;
+using CalendarReminder.Api.Services;
+using Microsoft.AspNetCore.Authentication.JwtBearer;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.IdentityModel.Tokens;
+using System.Text;
+
+var builder = WebApplication.CreateBuilder(args);
+
+// Controllers + OpenAPI
+builder.Services.AddControllers();
+builder.Services.AddOpenApi();
+
+// MariaDB / EF Core
+var connStr = builder.Configuration.GetConnectionString("Default");
+builder.Services.AddDbContext<AppDbContext>(options =>
+    options.UseMySql(connStr, ServerVersion.AutoDetect(connStr)));
+
+// JWT autentifikácia
+var jwtSecret = builder.Configuration["Jwt:Secret"]!;
+builder.Services.AddAuthentication(JwtBearerDefaults.AuthenticationScheme)
+    .AddJwtBearer(options =>
+    {
+        options.TokenValidationParameters = new TokenValidationParameters
+        {
+            ValidateIssuerSigningKey = true,
+            IssuerSigningKey = new SymmetricSecurityKey(Encoding.UTF8.GetBytes(jwtSecret)),
+            ValidateIssuer = true,
+            ValidIssuer = builder.Configuration["Jwt:Issuer"],
+            ValidateAudience = true,
+            ValidAudience = builder.Configuration["Jwt:Audience"],
+            ValidateLifetime = true
+        };
+    });
+builder.Services.AddAuthorization();
+
+// Services
+builder.Services.AddScoped<TokenService>();
+builder.Services.AddScoped<EmailService>();
+builder.Services.AddHostedService<ReminderNotificationService>();
+
+var app = builder.Build();
+
+// Auto-migrate pri štarte
+using (var scope = app.Services.CreateScope())
+{
+    var db = scope.ServiceProvider.GetRequiredService<AppDbContext>();
+    db.Database.Migrate();
+}
+
+if (app.Environment.IsDevelopment())
+    app.MapOpenApi();
+
+app.UseDefaultFiles();       // servuje index.html z wwwroot
+app.UseStaticFiles();        // frontend súbory
+
+app.UseAuthentication();
+app.UseAuthorization();
+app.MapControllers();
+app.Run();