chore(deps): upgrade Wails to v2.15.0 and bump golang.org/x dependencies

Reinstall the Go toolchain and rebuild wails against v2.15.0, then run
'go mod tidy' to update the dependency graph:

- github.com/wailsapp/wails/v2  v2.12.0 -> v2.15.0
- golang.org/x/crypto  v0.52.0 -> v0.53.0
- golang.org/x/net     v0.55.0 -> v0.56.0
- golang.org/x/sys     v0.45.0 -> v0.46.0
- golang.org/x/term    v0.43.0 -> v0.44.0
- golang.org/x/text    v0.37.0 -> v0.39.0

The regenerated Wails runtime bindings (runtime.d.ts / runtime.js) are
included as they surface new APIs shipped in v2.15: the cross-platform
notification API (InitializeNotifications, SendNotification, etc.) and
the EventsOffAll event helper.

frontend/wailsjs/runtime/runtime.js

@@ -48,6 +48,10 @@ export function EventsOff(eventName, ...additionalEventNames) {
     return window.runtime.EventsOff(eventName, ...additionalEventNames);
 }
 
+export function EventsOffAll() {
+  return window.runtime.EventsOffAll();
+}
+
 export function EventsOnce(eventName, callback) {
     return EventsOnMultiple(eventName, callback, 1);
 }
@@ -235,4 +239,60 @@ export function CanResolveFilePaths() {
 
 export function ResolveFilePaths(files) {
     return window.runtime.ResolveFilePaths(files);
+}
+
+export function InitializeNotifications() {
+    return window.runtime.InitializeNotifications();
+}
+
+export function CleanupNotifications() {
+    return window.runtime.CleanupNotifications();
+}
+
+export function IsNotificationAvailable() {
+    return window.runtime.IsNotificationAvailable();
+}
+
+export function RequestNotificationAuthorization() {
+    return window.runtime.RequestNotificationAuthorization();
+}
+
+export function CheckNotificationAuthorization() {
+    return window.runtime.CheckNotificationAuthorization();
+}
+
+export function SendNotification(options) {
+    return window.runtime.SendNotification(options);
+}
+
+export function SendNotificationWithActions(options) {
+    return window.runtime.SendNotificationWithActions(options);
+}
+
+export function RegisterNotificationCategory(category) {
+    return window.runtime.RegisterNotificationCategory(category);
+}
+
+export function RemoveNotificationCategory(categoryId) {
+    return window.runtime.RemoveNotificationCategory(categoryId);
+}
+
+export function RemoveAllPendingNotifications() {
+    return window.runtime.RemoveAllPendingNotifications();
+}
+
+export function RemovePendingNotification(identifier) {
+    return window.runtime.RemovePendingNotification(identifier);
+}
+
+export function RemoveAllDeliveredNotifications() {
+    return window.runtime.RemoveAllDeliveredNotifications();
+}
+
+export function RemoveDeliveredNotification(identifier) {
+    return window.runtime.RemoveDeliveredNotification(identifier);
+}
+
+export function RemoveNotification(identifier) {
+    return window.runtime.RemoveNotification(identifier);
 }