Hiding dock icon for MacOS

docs/plans/feature-1-system-tray.md

@@ -84,18 +84,31 @@ Strip all template code. Route to placeholder screens based on `currentScreen`:
 ### Step 5: Auto-show config if not configured
 In `main.kt`, on startup check `ConfigManager.isConfigured`. If false, set `currentScreen = Screen.CONFIG` and `isWindowVisible = true`.
 
-### Step 6: macOS JVM args
+### Step 6: macOS JVM args and Dock hiding (LSUIElement)
 **Files to modify:**
 - `composeApp/build.gradle.kts` — add to desktop application config:
 
 ```kotlin
 compose.desktop {
     application {
-        jvmArgs("-Dapple.awt.enableTemplateImages=true")
+        jvmArgs("-Dapple.awt.enableTemplateImages=true", "-Dapple.awt.UIElement=true")
+
+        nativeDistributions {
+            macOS {
+                infoPlist {
+                    extraKeysRawXml = """
+                        <key>LSUIElement</key>
+                        <true/>
+                    """.trimIndent()
+                }
+            }
+        }
     }
 }
 ```
 
+Also set `System.setProperty("apple.awt.UIElement", "true")` in `main.kt` for macOS so that the dock icon is suppressed during development runs.
+
 ## Verification
 1. `./gradlew composeApp:run` — app launches with tray icon visible
 2. Tray icon shows context menu with Status, Settings, Quit