Target the Suno browser for field filling

Sources/MusicAssistantApp/Integrations/MacOSSunoAccessibilityFieldFiller.swift

@@ -14,7 +14,7 @@ struct MacOSSunoAccessibilityFieldFiller: SunoFieldFilling {
 
         try? await Task.sleep(for: .seconds(2))
 
-        guard let application = NSWorkspace.shared.frontmostApplication else {
+        guard let application = sunoBrowserApplication() else {
             return .copyRequired(for: SunoHandoffField.allCases, reason: "The Suno browser window was not found.")
         }
 
@@ -78,6 +78,16 @@ struct MacOSSunoAccessibilityFieldFiller: SunoFieldFilling {
         descendants(of: AXUIElementCreateApplication(processIdentifier))
     }
 
+    private func sunoBrowserApplication() -> NSRunningApplication? {
+        guard let applicationURL = NSWorkspace.shared.urlForApplication(toOpen: SunoHandoffDestination.createPageURL),
+              let bundleIdentifier = Bundle(url: applicationURL)?.bundleIdentifier else {
+            return NSWorkspace.shared.frontmostApplication
+        }
+
+        return NSRunningApplication.runningApplications(withBundleIdentifier: bundleIdentifier).first
+            ?? NSWorkspace.shared.frontmostApplication
+    }
+
     private func descendants(of root: AXUIElement) -> [AXUIElement] {
         var elements: [AXUIElement] = []
         var pending = [root]
@@ -99,7 +109,7 @@ struct MacOSSunoAccessibilityFieldFiller: SunoFieldFilling {
     }
 
     private func labels(for element: AXUIElement) -> [String] {
-        [kAXTitleAttribute, kAXDescriptionAttribute, kAXHelpAttribute, kAXIdentifierAttribute]
+        [kAXTitleAttribute, kAXDescriptionAttribute, kAXHelpAttribute, kAXIdentifierAttribute, kAXPlaceholderValueAttribute]
             .compactMap { attribute($0, from: element) as? String }
     }