[management,client] 0.75.0 release with new desktop UI (#6473)

- **Wails v3 application** (`client/ui`) with a React + TypeScript + Tailwind frontend replacing the Fyne UI: main connection view, exit-node switcher, networks/peers browser with detail panels, profile management, settings (general, network, SSH, security, troubleshooting, appearance), debug-bundle creation, and a first-run welcome flow.
- **Internationalization**: go-i18n bundle with 9 locales (en, de, es, fr, hu, it, pt, ru, zh-CN) shared between the tray and the frontend.
- **New system tray** implementation with per-platform theme-aware icons, including a native XEmbed host for Linux (`xembed_tray_linux.c`) and a Linux theme watcher.
- **Session handling**: auth session watcher (`client/internal/auth/sessionwatch`), pending login flow, session-expiration dialog and tray notifications, and `netbird login` improvements.
- **Daemon API extensions** (`daemon.proto`): status stream subscription, event stream, networks/exit-node selection endpoints, and richer full status — with probe throttling on the daemon side to protect against UI-driven request storms.
- **UI preferences store** persisted per profile, autostart management via the daemon (single source of truth in HKCU on Windows).
- **Build system**: Taskfile-based builds per platform (macOS, Linux, Windows), Docker cross-compilation images, MSIX/NSIS/nfpm/AppImage packaging, and a new `frontend-ui` CI workflow.

Co-authored-by: Zoltan Papp <zoltan.pmail@gmail.com>
Co-authored-by: Eduard Gert <kontakt@eduardgert.de>
Co-authored-by: braginini <bangvalo@gmail.com>
Co-authored-by: Pascal Fischer <32096965+pascal-fischer@users.noreply.github.com>
Co-authored-by: riccardom <riccardomanfrin@gmail.com>

client/ui/frontend/src/components/dialog/ConfirmModal.tsx

@@ -0,0 +1,84 @@
+import { type ReactNode } from "react";
+import { useTranslation } from "react-i18next";
+import * as Dialog from "@/components/dialog/Dialog";
+import { Button } from "@/components/buttons/Button";
+import { DialogHeading } from "@/components/dialog/DialogHeading";
+import { DialogDescription } from "@/components/dialog/DialogDescription";
+import { DialogActions } from "@/components/dialog/DialogActions";
+
+type ConfirmModalProps = {
+    open: boolean;
+    title: ReactNode;
+    description: ReactNode;
+    confirmLabel: string;
+    cancelLabel?: string;
+    danger?: boolean;
+    busy?: boolean;
+    onConfirm: () => void;
+    onCancel: () => void;
+};
+
+export const ConfirmModal = ({
+    open,
+    title,
+    description,
+    confirmLabel,
+    cancelLabel,
+    danger = false,
+    busy = false,
+    onConfirm,
+    onCancel,
+}: ConfirmModalProps) => {
+    const { t } = useTranslation();
+    const resolvedCancel = cancelLabel ?? t("common.cancel");
+
+    const srTitle = typeof title === "string" ? title : undefined;
+    const srDescription = typeof description === "string" ? description : undefined;
+
+    return (
+        <Dialog.Root
+            open={open}
+            onOpenChange={(next) => {
+                if (!next && !busy) onCancel();
+            }}
+        >
+            <Dialog.Content
+                maxWidthClass={"max-w-sm"}
+                showClose={false}
+                className={"py-5"}
+                srTitle={srTitle}
+                srDescription={srDescription}
+                onOpenAutoFocus={(e) => e.preventDefault()}
+            >
+                <div className={"flex flex-col gap-5 px-5"}>
+                    <div className={"flex flex-col gap-1 pl-1"}>
+                        <DialogHeading align={"left"}>{title}</DialogHeading>
+                        <DialogDescription align={"left"} className={"whitespace-pre-line"}>
+                            {description}
+                        </DialogDescription>
+                    </div>
+
+                    <DialogActions className={"flex-row justify-end gap-2.5"}>
+                        <Button
+                            variant={"secondary"}
+                            size={"sm"}
+                            disabled={busy}
+                            onClick={onCancel}
+                        >
+                            {resolvedCancel}
+                        </Button>
+                        <Button
+                            autoFocus
+                            variant={danger ? "danger" : "primary"}
+                            size={"sm"}
+                            disabled={busy}
+                            onClick={onConfirm}
+                        >
+                            {confirmLabel}
+                        </Button>
+                    </DialogActions>
+                </div>
+            </Dialog.Content>
+        </Dialog.Root>
+    );
+};