fix: restore default Android SDK discovery

MiniSim/MiniSim.swift

@@ -80,6 +80,11 @@ class MiniSim: NSObject {
             onboarding.show()
             return
         }
+
+        if UserDefaults.standard.enableAndroidEmulators {
+            _ = try? ADB.configureDefaultAndroidHomeIfNeeded()
+        }
+
         menu = Menu()
         statusItem.menu = menu
         setMenuImage()

MiniSim/Service/Adb.swift

@@ -57,6 +57,22 @@ final class ADB: ADBProtocol {
     return path + Paths.home.rawValue
   }
 
+  /**
+   Persists the default Android SDK path when a valid SDK exists and no path was saved during onboarding.
+   */
+  @discardableResult static func configureDefaultAndroidHomeIfNeeded(
+    fileManager: FileManager = .default
+  ) throws -> Bool {
+    guard UserDefaults.standard.androidHome == nil else {
+      return false
+    }
+
+    let androidHome = try getAndroidHome()
+    try checkAndroidHome(path: androidHome, fileManager: fileManager)
+    UserDefaults.standard.androidHome = androidHome
+    return true
+  }
+
   static func getAdbPath() throws -> String {
     try getAndroidHome() + Paths.adb.rawValue
   }

MiniSimTests/ADBTests.swift

@@ -48,6 +48,31 @@ final class ADBTests: XCTestCase {
     )
   }
 
+  func testConfigureDefaultAndroidHomeIfNeeded() throws {
+    XCTAssertTrue(
+      try ADB.configureDefaultAndroidHomeIfNeeded(fileManager: FileManagerStub())
+    )
+    XCTAssertEqual(UserDefaults.standard.androidHome, defaultHomePath)
+    XCTAssertEqual(shellStub.lastExecutedCommand, defaultHomePath + "/emulator/emulator")
+    XCTAssertEqual(shellStub.lastPassedArguments, ["-list-avds"])
+  }
+
+  func testConfigureDefaultAndroidHomeIfNeededDoesNotOverrideSavedPath() throws {
+    UserDefaults.standard.androidHome = "customAndroidHome"
+
+    XCTAssertFalse(
+      try ADB.configureDefaultAndroidHomeIfNeeded(fileManager: FileManagerStub())
+    )
+    XCTAssertEqual(UserDefaults.standard.androidHome, "customAndroidHome")
+  }
+
+  func testConfigureDefaultAndroidHomeIfNeededRequiresValidSDK() {
+    XCTAssertThrowsError(
+      try ADB.configureDefaultAndroidHomeIfNeeded(fileManager: FileManagerEmptyStub())
+    )
+    XCTAssertNil(UserDefaults.standard.androidHome)
+  }
+
   func testCheckAndroidHome() throws {
     let output = try ADB.checkAndroidHome(
       path: defaultHomePath,