2.1 Configuration POCOs (Mqtt, Storage, UrlFetch, ApiKey)

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

src/FrameProcessor/Program.cs

@@ -1,7 +1,29 @@
+using FrameProcessor.Configuration;
+
 var builder = WebApplication.CreateBuilder(args);
 
 builder.Services.AddControllers();
 
+builder.Services.AddOptions<MqttOptions>()
+    .Bind(builder.Configuration.GetSection(MqttOptions.SectionName))
+    .ValidateDataAnnotations()
+    .ValidateOnStart();
+
+builder.Services.AddOptions<StorageOptions>()
+    .Bind(builder.Configuration.GetSection(StorageOptions.SectionName))
+    .ValidateDataAnnotations()
+    .ValidateOnStart();
+
+builder.Services.AddOptions<UrlFetchOptions>()
+    .Bind(builder.Configuration.GetSection(UrlFetchOptions.SectionName))
+    .ValidateDataAnnotations()
+    .ValidateOnStart();
+
+builder.Services.AddOptions<ApiKeyOptions>()
+    .Configure<IConfiguration>((opts, cfg) => opts.Value = cfg[ApiKeyOptions.SectionName] ?? string.Empty)
+    .ValidateDataAnnotations()
+    .ValidateOnStart();
+
 var app = builder.Build();
 
 app.MapControllers();