feat(launch): implement Xiuper launch animation with design system

mpp-core/src/androidMain/kotlin/cc/unitmesh/agent/Platform.kt

@@ -45,5 +45,12 @@ actual object Platform {
     actual fun getLogDir(): String {
         return "${getUserHomeDir()}/.autodev/logs"
     }
+
+    actual fun prefersReducedMotion(): Boolean {
+        // Android requires Context to check Settings.Global.ANIMATOR_DURATION_SCALE
+        // Since Platform is a static object without Context access, we return false.
+        // TODO: Consider providing a Context-aware initialization or companion method
+        return false
+    }
 }
 

mpp-core/src/commonMain/kotlin/cc/unitmesh/agent/Platform.kt

@@ -27,6 +27,12 @@ expect object Platform {
      * Default: ~/.autodev/logs
      */
     fun getLogDir(): String
+
+    /**
+     * Check if user prefers reduced motion (accessibility setting)
+     * Used to disable or simplify animations for users who are sensitive to motion
+     */
+    fun prefersReducedMotion(): Boolean
 }
 
 /**

mpp-core/src/iosMain/kotlin/cc/unitmesh/agent/Platform.ios.kt

@@ -4,6 +4,7 @@ import kotlinx.cinterop.ExperimentalForeignApi
 import kotlinx.datetime.Clock
 import platform.Foundation.NSHomeDirectory
 import platform.Foundation.NSProcessInfo
+import platform.UIKit.UIAccessibilityIsReduceMotionEnabled
 
 @OptIn(ExperimentalForeignApi::class)
 actual object Platform {
@@ -43,5 +44,10 @@ actual object Platform {
     actual fun getLogDir(): String {
         return "${getUserHomeDir()}/.autodev/logs"
     }
+
+    actual fun prefersReducedMotion(): Boolean {
+        // iOS: Check reduce motion accessibility setting
+        return UIAccessibilityIsReduceMotionEnabled()
+    }
 }
 

mpp-core/src/jsMain/kotlin/cc/unitmesh/agent/Platform.js.kt

@@ -63,4 +63,20 @@ actual object Platform {
     actual fun getLogDir(): String {
         return "${getUserHomeDir()}/.autodev/logs"
     }
+
+    actual fun prefersReducedMotion(): Boolean {
+        // In browser, check prefers-reduced-motion media query
+        // In Node.js, return false as there's no UI
+        return try {
+            val isBrowser = js("typeof window !== 'undefined'") as Boolean
+            if (isBrowser) {
+                val matches = js("window.matchMedia && window.matchMedia('(prefers-reduced-motion: reduce)').matches") as Boolean
+                matches
+            } else {
+                false
+            }
+        } catch (e: Exception) {
+            false
+        }
+    }
 }

mpp-core/src/jvmMain/kotlin/cc/unitmesh/agent/Platform.jvm.kt

@@ -48,4 +48,43 @@ actual object Platform {
     actual fun getLogDir(): String {
         return "${getUserHomeDir()}/.autodev/logs"
     }
+
+    actual fun prefersReducedMotion(): Boolean {
+        // On JVM Desktop, check system properties or environment variables
+        // macOS: defaults read com.apple.universalaccess reduceMotion
+        // Windows: Check registry for SystemParameters.HighContrast or animations disabled
+        // Linux: Check GTK settings or GNOME accessibility settings
+        return try {
+            val osName = getOSName().lowercase()
+            when {
+                osName.contains("mac") -> {
+                    // Check macOS reduce motion setting via defaults command
+                    val process = ProcessBuilder("defaults", "read", "com.apple.universalaccess", "reduceMotion")
+                        .redirectErrorStream(true)
+                        .start()
+                    val result = process.inputStream.bufferedReader().readText().trim()
+                    val completed = process.waitFor(1, java.util.concurrent.TimeUnit.SECONDS)
+                    if (!completed) {
+                        process.destroyForcibly()
+                        return false
+                    }
+                    result == "1"
+                }
+                osName.contains("windows") -> {
+                    // Windows: Proper implementation requires JNA/JNI to call
+                    // SystemParametersInfo(SPI_GETCLIENTAREAANIMATION) or read registry
+                    // For now, return false as a safe default
+                    false
+                }
+                else -> {
+                    // Linux/other: Check GTK_ENABLE_ANIMATIONS or GNOME settings
+                    val gtkAnimations = System.getenv("GTK_ENABLE_ANIMATIONS")
+                    gtkAnimations == "0" || gtkAnimations == "false"
+                }
+            }
+        } catch (e: Exception) {
+            // Default to false if we can't determine the setting
+            false
+        }
+    }
 }

mpp-core/src/wasmJsMain/kotlin/cc/unitmesh/agent/Platform.wasmJs.kt

@@ -41,4 +41,11 @@ actual object Platform {
         // WASM typically runs in browser, use a virtual path
         return "~/.autodev/logs"
     }
+
+    actual fun prefersReducedMotion(): Boolean {
+        // WASM runs in browser, default to false
+        // Full media query check is limited in WASM due to js() expression restrictions
+        // This can be enhanced in the future if needed
+        return false
+    }
 }

mpp-idea/src/test/kotlin/cc/unitmesh/devins/idea/renderer/JewelRendererTest.kt

@@ -2,6 +2,7 @@ package cc.unitmesh.devins.idea.renderer
 
 import cc.unitmesh.devins.llm.MessageRole
 import cc.unitmesh.agent.render.TimelineItem
+import cc.unitmesh.agent.render.TaskStatus
 import cc.unitmesh.llm.compression.TokenInfo
 import kotlinx.coroutines.flow.first
 import kotlinx.coroutines.runBlocking