feat: Implement Radio Browser API with server status monitoring

Major changes:
- Added RadioBrowserApi class with comprehensive API integration
- Implemented server status monitoring with availability checks
- Added support for IPv4 and IPv6 addresses with proper URL formatting
- Created ServerStatusView component for displaying server information
- Added player selection functionality with dependency checking
- Improved error handling and logging throughout the application

Technical details:
- Uses Ktor client for HTTP requests with proper timeout and retry configuration
- Implements coroutine-based async operations for better performance
- Added comprehensive logging with SLF4J
- Proper serialization handling for API responses
- Thread-safe server status management with synchronization

UI Components:
- ServerStatusView: Displays server information with availability indicators
- PlayerSelectionView: Allows selection of media players with dependency checks
- StationCard: Shows detailed station information with proper formatting

Core functionality:
- Server discovery and mirror selection
- Station search with proper error handling
- Player selection with dependency verification
- Stream playback support for multiple players

This commit establishes the core functionality for the Radio Browser application,
providing a robust foundation for radio station discovery and playback.

Author: arya458

composeApp/build.gradle.kts

@@ -3,6 +3,7 @@ import org.jetbrains.compose.desktop.application.dsl.TargetFormat
 plugins {
     alias(libs.plugins.kotlinMultiplatform)
     alias(libs.plugins.jetbrainsCompose)
+    kotlin("plugin.serialization") version "1.9.0"
 }
 
 repositories {
@@ -25,6 +26,12 @@ kotlin {
                 implementation(compose.desktop.currentOs)
                 implementation("ch.qos.logback:logback-classic:1.4.11")
                 implementation("org.slf4j:slf4j-api:2.0.9")
+                implementation("io.ktor:ktor-client-core:2.3.7")
+                implementation("io.ktor:ktor-client-cio:2.3.7")
+                implementation("io.ktor:ktor-client-content-negotiation:2.3.7")
+                implementation("io.ktor:ktor-serialization-kotlinx-json:2.3.7")
+                implementation("org.jetbrains.kotlinx:kotlinx-serialization-json:1.6.0")
+                implementation("org.slf4j:slf4j-simple:2.0.9")
             }
         }
         val koin_version = "4.0.3"

composeApp/src/desktopMain/kotlin/player/data/repository/PlayerImpl.kt

@@ -1,7 +1,9 @@
 package player.data.repository
 
+import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.flow.Flow
 import kotlinx.coroutines.flow.flow
+import kotlinx.coroutines.withContext
 import player.domain.repository.PlayerRepository
 import player.util.PlayerState
 import java.io.File
@@ -44,9 +46,11 @@ class PlayerImpl : PlayerRepository {
         stop()
         try {
             val command = listOf(playerPath, "-url", url, "-volume", "100")
-            process = ProcessBuilder(command)
-                .directory(File(System.getProperty("user.dir")))
-                .start()
+            process = withContext(Dispatchers.IO) {
+                ProcessBuilder(command)
+                    .directory(File(System.getProperty("user.dir")))
+                    .start()
+            }
         } catch (e: IOException) {
             throw RuntimeException("Failed to start player: ${e.message}")
         }