Enable Swagger UI in production environment

Remove development-only restriction for Swagger UI to allow API documentation
access in all environments. This is safe as the service is local-only.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

PepApi.Core/Program.cs

@@ -53,11 +53,8 @@ builder.Services.AddCors(options =>
 var app = builder.Build();
 
 // Configure the HTTP request pipeline
-if (app.Environment.IsDevelopment())
-{
-    app.UseSwagger();
-    app.UseSwaggerUI();
-}
+app.UseSwagger();
+app.UseSwaggerUI();
 
 app.UseCors();