feat(backend): add admin evaluation history, engine, simulation, bot API controllers and global exception middleware

FinlyticBackend/Settings/BackendSettingKeys.cs

@@ -0,0 +1,19 @@
+using FinlyticCore.Models.Settings;
+
+namespace FinlyticBackend.Settings;
+
+/// <summary>
+/// FinlyticBackend's own dynamic settings - previously nonexistent (it had no <c>ISettingsDbContext</c>/
+/// <c>ISettingsService</c> registration at all), which is why the admin UI's per-service settings screen never
+/// showed anything for it, unlike every other service (see <c>EngineSettingKeys</c>/<c>SimulationSettingKeys</c>
+/// for the same pattern elsewhere).
+/// </summary>
+public static class BackendSettingKeys
+{
+    // --- Logging Channels ---
+    public static readonly SettingKey<bool> HealthPingChannel = new("Logging.Channel.Health", true);
+    public static readonly SettingKey<bool> MqttChannel = new("Logging.Channel.MQTT", true);
+    public static readonly SettingKey<bool> BackendChannel = new("Logging.Channel.Backend", true);
+    public static readonly SettingKey<bool> AuthChannel = new("Logging.Channel.Auth", true);
+    public static readonly SettingKey<bool> PushNotificationChannel = new("Logging.Channel.PushNotification", true);
+}