Simplify configReaders

node/src/main/scala/com/wavesplatform/GenesisBlockGenerator.scala

@@ -31,7 +31,10 @@ object GenesisBlockGenerator {
   case class DistributionItem(seedText: String, nonce: Int, amount: Share, miner: Boolean = true)
 
   object DistributionItem {
-    given ConfigReader[DistributionItem] = deriveReader[DistributionItem]
+    // This given is required for default args to work.
+    // Details: https://github.com/pureconfig/pureconfig/issues/1673 
+    // Note: the proposed approach with `extension` doesn't work.
+    given ConfigReader[DistributionItem] = deriveReader
   }
 
   case class Settings(

node/src/main/scala/com/wavesplatform/settings/BlockchainSettings.scala

@@ -121,7 +121,10 @@ case class FunctionalitySettings(
 }
 
 object FunctionalitySettings {
-  given ConfigReader[FunctionalitySettings] = deriveReader[FunctionalitySettings]
+  // This given is required for default args to work.
+  // Details: https://github.com/pureconfig/pureconfig/issues/1673 
+  // Note: the proposed approach with `extension` doesn't work.
+  given ConfigReader[FunctionalitySettings] = deriveReader
 
   val MAINNET: FunctionalitySettings = apply(
     featureCheckBlocksPeriod = 5000,

node/src/main/scala/com/wavesplatform/settings/DBSettings.scala

@@ -16,5 +16,8 @@ case class DBSettings(
 )
 
 object DBSettings {
-  given ConfigReader[DBSettings] = deriveReader[DBSettings]
+  // This given is required for default args to work.
+  // Details: https://github.com/pureconfig/pureconfig/issues/1673 
+  // Note: the proposed approach with `extension` doesn't work.
+  given ConfigReader[DBSettings] = deriveReader
 }

node/src/main/scala/com/wavesplatform/settings/FeaturesSettings.scala

@@ -1,19 +1,13 @@
 package com.wavesplatform.settings
 
 import pureconfig.*
+import pureconfig.generic.semiauto.deriveReader
 
-case class FeaturesSettings(autoShutdownOnUnsupportedFeature: Boolean, supported: List[Short] = defaultSupported)
+case class FeaturesSettings(autoShutdownOnUnsupportedFeature: Boolean, supported: List[Short] = List.empty)
 
 object FeaturesSettings {
-  // Note: This setup (default values + manual ConfigReader instance) 
-  // is a workaround for `pureconfig-generic-scala3` (it doesn't support default values from case classes yet)
-  val defaultSupported: List[Short] = List.empty
-
-  given ConfigReader[FeaturesSettings] = ConfigReader.fromCursor(cur =>
-    for {
-      objCur <- cur.asObjectCursor
-      autoShutdownOnUnsupportedFeature <- objCur.required[Boolean]("auto-shutdown-on-unsupported-feature")
-      supported <- objCur.optionalWithDefault("supported", defaultSupported)
-    } yield FeaturesSettings(autoShutdownOnUnsupportedFeature, supported)
-  )
+  // This given is required for default args to work.
+  // Details: https://github.com/pureconfig/pureconfig/issues/1673 
+  // Note: the proposed approach with `extension` doesn't work.
+  given ConfigReader[FeaturesSettings] = deriveReader
 }

ride-runner/src/main/scala/com/wavesplatform/ride/runner/input/RideRunnerBlockchainState.scala

@@ -20,6 +20,8 @@ case class RideRunnerBlockchainState(
 )
 
 object RideRunnerBlockchainState {
-  // required for default args to work properly: https://github.com/pureconfig/pureconfig/issues/1673
-  given ConfigReader[RideRunnerBlockchainState] = deriveReader[RideRunnerBlockchainState]
+  // This given is required for default args to work.
+  // Details: https://github.com/pureconfig/pureconfig/issues/1673 
+  // Note: the proposed approach with `extension` doesn't work.
+  given ConfigReader[RideRunnerBlockchainState] = deriveReader
 }