docs(v3): update API references to new Manager API pattern (#4863)

* docs(v3): update API references to new Manager API pattern

Update documentation to reflect the Manager API refactoring from alpha.10:

Window API:
- app.NewWebviewWindow() -> app.Window.New()
- app.NewWebviewWindowWithOptions() -> app.Window.NewWithOptions()
- app.CurrentWindow() -> app.Window.Current()
- app.GetAllWindows() -> app.Window.GetAll()
- app.WindowByName() -> app.Window.GetByName()

Event API:
- app.EmitEvent() -> app.Event.Emit()
- app.OnEvent() -> app.Event.On()
- app.OnApplicationEvent() -> app.Event.OnApplicationEvent()

Dialog API:
- app.OpenFileDialog() -> app.Dialog.OpenFile()
- app.SaveFileDialog() -> app.Dialog.SaveFile()
- app.InfoDialog() -> app.Dialog.Info()
- app.ErrorDialog() -> app.Dialog.Error()
- app.WarningDialog() -> app.Dialog.Warning()
- app.QuestionDialog() -> app.Dialog.Question()

Other APIs:
- app.NewSystemTray() -> app.SystemTray.New()
- app.SetApplicationMenu() -> app.Menu.Set()
- app.GetPrimaryScreen() -> app.Screen.GetPrimary()
- app.GetAllScreens() -> app.Screen.GetAll()
- app.ClipboardGetText() -> app.Clipboard.Text()
- app.ClipboardSetText() -> app.Clipboard.SetText()
- app.BrowserOpenURL() -> app.Browser.OpenURL()

Fixes outdated code examples across 31 documentation files.

* chore(v3): add docs fix to unreleased changelog

Author: leaanthony

docs/src/content/docs/concepts/architecture.mdx

@@ -264,7 +264,7 @@ Frontend2 -> EventBus: "On('data-updated', handler)"
 **Example:**
 ```go
 // Go: Emit an event
-app.EmitEvent("user-logged-in", user)
+app.Event.Emit("user-logged-in", user)
 ```
 
 ```javascript

docs/src/content/docs/concepts/bridge.mdx

@@ -538,7 +538,7 @@ func ProcessLargeFile(path string) error {
     for scanner.Scan() {
         lineNum++
         // Emit progress events
-        app.EmitEvent("file-progress", map[string]interface{}{
+        app.Event.Emit("file-progress", map[string]interface{}{
             "line": lineNum,
             "text": scanner.Text(),
         })

docs/src/content/docs/concepts/build-system.mdx

@@ -325,7 +325,7 @@ func main() {
         },
     })
 
-    app.NewWebviewWindow()
+    app.Window.New()
     app.Run()
 }
 ```

docs/src/content/docs/contributing/runtime-internals.mdx

@@ -39,7 +39,7 @@ win := app.Window.New(&application.WebviewWindowOptions{
 win.Show()
 ```
 
-`NewWebviewWindow` delegates to `internal/runtime/webview_window_*.go` where
+`app.Window.New()` delegates to `internal/runtime/webview_window_*.go` where
 platform-specific constructors live:
 
 ```

docs/src/content/docs/faq.mdx

@@ -123,16 +123,16 @@ Use SignTool with your certificate.
 Yes! Wails v3 has native multi-window support:
 
 ```go
-window1 := app.NewWebviewWindow()
-window2 := app.NewWebviewWindow()
+window1 := app.Window.New()
+window2 := app.Window.New()
 ```
 
 ### Does Wails support system tray?
 
 Yes! Create system tray applications:
 
 ```go
-tray := app.NewSystemTray()
+tray := app.SystemTray.New()
 tray.SetIcon(iconBytes)
 tray.SetMenu(menu)
 ```
@@ -142,7 +142,7 @@ tray.SetMenu(menu)
 Yes! Wails provides native dialogs:
 
 ```go
-path, _ := app.OpenFileDialog().
+path, _ := app.Dialog.OpenFile().
     SetTitle("Select File").
     PromptForSingleSelection()
 ```
@@ -194,7 +194,7 @@ wails3 generate bindings
 Check if you called `Show()`:
 
 ```go
-window := app.NewWebviewWindow()
+window := app.Window.New()
 window.Show()  // Don't forget this!
 ```
 
@@ -204,7 +204,7 @@ Ensure event names match exactly:
 
 ```go
 // Go
-app.EmitEvent("my-event", data)
+app.Event.Emit("my-event", data)
 
 // JavaScript
 OnEvent("my-event", handler)  // Must match

docs/src/content/docs/features/bindings/best-practices.mdx

@@ -274,7 +274,7 @@ func (s *Service) ProcessLargeFile(path string) error {
         processed++
 
         // Emit progress
-        s.app.EmitEvent("progress", map[string]interface{}{
+        s.app.Event.Emit("progress", map[string]interface{}{
             "processed": processed,
             "total":     total,
             "percent":   int(float64(processed) / float64(total) * 100),

docs/src/content/docs/features/bindings/methods.mdx

@@ -461,7 +461,7 @@ const config = await GetConfig()
 func ProcessLargeFile(path string) error {
     // Emit progress events
     for line := range lines {
-        app.EmitEvent("progress", line)
+        app.Event.Emit("progress", line)
     }
     return nil
 }
@@ -530,7 +530,7 @@ func main() {
         },
     })
 
-    app.NewWebviewWindow()
+    app.Window.New()
     app.Run()
 }
 ```

docs/src/content/docs/features/bindings/models.mdx

@@ -628,7 +628,7 @@ func main() {
         },
     })
 
-    app.NewWebviewWindow()
+    app.Window.New()
     app.Run()
 }
 ```

docs/src/content/docs/features/bindings/services.mdx

@@ -438,7 +438,7 @@ func (o *OrderService) CreateOrder(items []Item) (*Order, error) {
     }
 
     // Emit event
-    o.app.EmitEvent("order-created", order)
+    o.app.Event.Emit("order-created", order)
 
     return order, nil
 }
@@ -485,7 +485,7 @@ func NewNotificationService(app *application.Application) *NotificationService {
 
 func (n *NotificationService) Notify(message string) {
     // Use application to emit events
-    n.app.EmitEvent("notification", message)
+    n.app.Event.Emit("notification", message)
 
     // Or show system notification
     n.app.ShowNotification(message)
@@ -780,7 +780,7 @@ func main() {
         },
     })
 
-    app.NewWebviewWindow()
+    app.Window.New()
     app.Run()
 }
 ```

docs/src/content/docs/features/clipboard/basics.mdx

@@ -64,12 +64,12 @@ await CopyToClipboard("Text to copy")
 ```go
 func copyWithFeedback(text string) {
     if app.Clipboard.SetText(text) {
-        app.InfoDialog().
+        app.Dialog.Info().
             SetTitle("Copied").
             SetMessage("Text copied to clipboard!").
             Show()
     } else {
-        app.ErrorDialog().
+        app.Dialog.Error().
             SetTitle("Copy Failed").
             SetMessage("Failed to copy to clipboard.").
             Show()
@@ -296,7 +296,7 @@ func (cm *ClipboardMonitor) checkClipboard() {
 
     if text != cm.lastText {
         cm.lastText = text
-        cm.app.EmitEvent("clipboard-changed", text)
+        cm.app.Event.Emit("clipboard-changed", text)
     }
 }
 ```