[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/inputs/SearchInput.tsx

@@ -0,0 +1,59 @@
+import { forwardRef, type InputHTMLAttributes, type ReactNode } from "react";
+import { useTranslation } from "react-i18next";
+import { SearchIcon } from "lucide-react";
+import { cn } from "@/lib/cn";
+
+type Props = InputHTMLAttributes<HTMLInputElement> & {
+    iconSize?: number;
+    shortcut?: ReactNode;
+};
+
+export const SearchInput = forwardRef<HTMLInputElement, Props>(function SearchInput(
+    { iconSize = 16, className, disabled, shortcut, "aria-label": ariaLabel, ...props },
+    ref,
+) {
+    const { t } = useTranslation();
+    return (
+        <div
+            role={"search"}
+            className={cn("flex h-10 items-center gap-2 px-1", disabled && "opacity-50")}
+        >
+            <SearchIcon
+                size={iconSize}
+                aria-hidden={"true"}
+                className={"shrink-0 text-nb-gray-300"}
+            />
+            <input
+                ref={ref}
+                type={"search"}
+                disabled={disabled}
+                aria-label={ariaLabel ?? props.placeholder ?? t("common.search")}
+                autoCorrect={"off"}
+                autoCapitalize={"off"}
+                spellCheck={false}
+                {...props}
+                className={cn(
+                    "w-full bg-transparent text-sm text-nb-gray-200 placeholder:text-nb-gray-400",
+                    "border-none outline-none",
+                    disabled && "cursor-not-allowed",
+                    className,
+                )}
+            />
+            {shortcut && (
+                <span
+                    aria-hidden={"true"}
+                    className={cn(
+                        "shrink-0 select-none",
+                        "inline-flex items-center justify-center",
+                        "h-5 min-w-[20px] rounded px-1.5",
+                        "border border-nb-gray-850 bg-nb-gray-920",
+                        "text-[10px] font-medium text-nb-gray-400",
+                        "wails-no-draggable",
+                    )}
+                >
+                    {shortcut}
+                </span>
+            )}
+        </div>
+    );
+});