feat: bootの対応

src/main/kotlin/net/hareworks/kommand-lib/arguments/ArgumentTypes.kt

@@ -23,6 +23,20 @@ object WordArgumentType : KommandArgumentType<String> {
     }
 }
 
+object BooleanArgumentType : KommandArgumentType<Boolean> {
+    override fun parse(input: String, context: KommandContext): ArgumentParseResult<Boolean> {
+        val lower = input.lowercase()
+        return when (lower) {
+            "true" -> ArgumentParseResult.Success(true)
+            "false" -> ArgumentParseResult.Success(false)
+            else -> ArgumentParseResult.Failure("Expected true/false but got '$input'")
+        }
+    }
+    
+    override fun suggestions(context: KommandContext, prefix: String): List<String> =
+        listOf("true", "false").filter { it.startsWith(prefix, ignoreCase = true) }
+}
+
 class IntegerArgumentType(
     val min: Int? = null,
     val max: Int? = null

src/main/kotlin/net/hareworks/kommand-lib/dsl/RegistryBuilders.kt

@@ -147,6 +147,11 @@ abstract class BranchScope internal constructor(
         block: ValueBuilder<Double>.() -> Unit = {}
     ) = argument(name, FloatArgumentType(min, max), block)
 
+    fun bool(
+        name: String,
+        block: ValueBuilder<Boolean>.() -> Unit = {}
+    ) = argument(name, BooleanArgumentType, block)
+
     fun player(
         name: String,
         allowSelectors: Boolean = true,