[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/services/network.go

@@ -0,0 +1,88 @@
+//go:build !android && !ios && !freebsd && !js
+
+package services
+
+import (
+	"context"
+
+	"github.com/netbirdio/netbird/client/proto"
+)
+
+type Network struct {
+	ID          string              `json:"id"`
+	Range       string              `json:"range"`
+	Selected    bool                `json:"selected"`
+	Domains     []string            `json:"domains"`
+	ResolvedIPs map[string][]string `json:"resolvedIps"`
+}
+
+// SelectNetworksParams: All targets every available network; Append merges IDs into the existing selection.
+type SelectNetworksParams struct {
+	NetworkIDs []string `json:"networkIds"`
+	Append     bool     `json:"append"`
+	All        bool     `json:"all"`
+}
+
+type Networks struct {
+	conn DaemonConn
+}
+
+func NewNetworks(conn DaemonConn) *Networks {
+	return &Networks{conn: conn}
+}
+
+func (s *Networks) List(ctx context.Context) ([]Network, error) {
+	cli, err := s.conn.Client()
+	if err != nil {
+		return nil, err
+	}
+	resp, err := cli.ListNetworks(ctx, &proto.ListNetworksRequest{})
+	if err != nil {
+		return nil, err
+	}
+	out := make([]Network, 0, len(resp.GetRoutes()))
+	for _, n := range resp.GetRoutes() {
+		out = append(out, networkFromProto(n))
+	}
+	return out, nil
+}
+
+func (s *Networks) Select(ctx context.Context, p SelectNetworksParams) error {
+	cli, err := s.conn.Client()
+	if err != nil {
+		return err
+	}
+	_, err = cli.SelectNetworks(ctx, &proto.SelectNetworksRequest{
+		NetworkIDs: p.NetworkIDs,
+		Append:     p.Append,
+		All:        p.All,
+	})
+	return err
+}
+
+func (s *Networks) Deselect(ctx context.Context, p SelectNetworksParams) error {
+	cli, err := s.conn.Client()
+	if err != nil {
+		return err
+	}
+	_, err = cli.DeselectNetworks(ctx, &proto.SelectNetworksRequest{
+		NetworkIDs: p.NetworkIDs,
+		Append:     p.Append,
+		All:        p.All,
+	})
+	return err
+}
+
+func networkFromProto(n *proto.Network) Network {
+	resolved := make(map[string][]string, len(n.GetResolvedIPs()))
+	for k, v := range n.GetResolvedIPs() {
+		resolved[k] = append([]string{}, v.GetIps()...)
+	}
+	return Network{
+		ID:          n.GetID(),
+		Range:       n.GetRange(),
+		Selected:    n.GetSelected(),
+		Domains:     append([]string{}, n.GetDomains()...),
+		ResolvedIPs: resolved,
+	}
+}