Features: Quick Commands ausfuehrbar, Gruppenfilter, Duplizieren, Erreichbarkeits-Check, Themes, Kontextmenue

- Quick Commands lokal oder via SSH auf dem ausgewaehlten Server starten
- Server duplizieren, SSH-Befehl in die Zwischenablage kopieren
- Erreichbarkeits-Check pro Server (TCP, Thread-basiert) mit Statuspunkt
- Gruppenfilter-Chips in der Sidebar
- Themes: neon-green, ocean-blue, sunset-orange, cyber-purple
- Doppelklick verbindet, Rechtsklick-Kontextmenue, Shortcuts F5/Ctrl+N/Ctrl+S
- Quick-Commands-Seite mit Buttons, About-Dialog, Config-Ordner oeffnen
- Version 1.1.0

README.md

@@ -8,11 +8,15 @@ Läuft nativ auf **Linux** und **Windows**. Für Windows liegt ein fertiger Inst
 
 - Desktop-UI ohne Browser
 - Serverliste mit Suche
-- Server hinzufügen, bearbeiten und löschen
+- Server hinzufügen, bearbeiten, duplizieren und löschen
-- SSH-Verbindung per Button starten
+- Gruppenfilter in der Sidebar
-- SSH-Befehl pro Server anzeigen
+- SSH-Verbindung per Button, per Doppelklick oder über das Kontextmenü starten
-- Terminal-Settings verwalten
+- Erreichbarkeits-Check pro Server (TCP-Ping)
-- Quick Commands anzeigen
+- SSH-Befehl pro Server anzeigen und in die Zwischenablage kopieren
+- **Quick Commands ausführbar** – lokal oder via SSH auf dem ausgewählten Server
+- Konfigurierbare Themes (neon-green, ocean-blue, sunset-orange, cyber-purple)
+- Tastenkürzel: F5 neu laden, Ctrl+N neuer Server, Ctrl+S speichern
+- Terminal-Settings verwalten, Config-Ordner direkt öffnen
 - Gemeinsame Konfiguration mit PulseGate TUI
 
 ## Voraussetzungen

desktop/pulsegate_desktop.py

@@ -5,8 +5,10 @@ from __future__ import annotations
 import os
 import shlex
 import shutil
+import socket
 import subprocess
 import sys
+import threading
 import tkinter as tk
 from pathlib import Path
 from tkinter import messagebox
@@ -15,10 +17,14 @@ import yaml
 
 
 APP_TITLE = "PulseGate Desktop"
-APP_VERSION = "1.0.0"
+APP_VERSION = "1.1.0"
+APP_URL = "https://git.pepe44.dev/Pepe44DEV/PulseGate-GUI"
 IS_WINDOWS = sys.platform == "win32"
+CONNECT_TIMEOUT = 2.5
+STATUS_OK = "#00e07a"
 
-COLORS = {
+THEMES = {
+    "neon-green": {
         "bg": "#07110d",
         "sidebar": "#050c09",
         "surface": "#0d1b15",
@@ -31,8 +37,53 @@ COLORS = {
         "accent": "#00ff99",
         "accent_2": "#33ccff",
         "danger": "#ff6666",
+    },
+    "ocean-blue": {
+        "bg": "#071018",
+        "sidebar": "#040b12",
+        "surface": "#0e1b26",
+        "surface_2": "#142638",
+        "surface_3": "#1a324a",
+        "field": "#091420",
+        "line": "#1e4a6e",
+        "text": "#d7ecff",
+        "muted": "#8aa7c0",
+        "accent": "#3ddcff",
+        "accent_2": "#5a8cff",
+        "danger": "#ff6a6a",
+    },
+    "sunset-orange": {
+        "bg": "#120d07",
+        "sidebar": "#0b0804",
+        "surface": "#221711",
+        "surface_2": "#2f2215",
+        "surface_3": "#3b2d1d",
+        "field": "#17100a",
+        "line": "#6e4a1e",
+        "text": "#ffe9d7",
+        "muted": "#c0a98a",
+        "accent": "#ff9d3d",
+        "accent_2": "#ff6a5a",
+        "danger": "#ff6a6a",
+    },
+    "cyber-purple": {
+        "bg": "#0f0711",
+        "sidebar": "#09050b",
+        "surface": "#1d0e22",
+        "surface_2": "#2a1133",
+        "surface_3": "#371a44",
+        "field": "#140918",
+        "line": "#5a1f6e",
+        "text": "#f0d7ff",
+        "muted": "#b38ac0",
+        "accent": "#c95aff",
+        "accent_2": "#6affcc",
+        "danger": "#ff6a6a",
+    },
 }
 
+COLORS = dict(THEMES["neon-green"])
+
 UI_FONT = ("Segoe UI", 11) if IS_WINDOWS else ("Inter", 11)
 UI_FONT_SMALL = ("Segoe UI", 9) if IS_WINDOWS else ("Inter", 9)
 UI_FONT_MONO = ("Consolas", 10) if IS_WINDOWS else ("JetBrains Mono", 10)
@@ -84,17 +135,19 @@ def default_config() -> dict:
         "quick_commands": [
             {"name": "Disk Usage", "command": "df -h"},
             {"name": "RAM Usage", "command": "free -h"},
-            {"name": "Uptime", "command": "uptime"},
+            {"name": "Container Status", "command": "docker ps"},
         ],
     }
 
 
 def normalize_config(config: dict) -> dict:
     config.setdefault("settings", {})
-    config["settings"].setdefault("theme", "neon-green")
+    settings = config["settings"]
-    config["settings"].setdefault("terminal", {})
+    settings.setdefault("theme", "neon-green")
-    config["settings"]["terminal"].setdefault("term", "xterm-256color")
+    settings.setdefault("quick_commands_enabled", True)
-    config["settings"]["terminal"].setdefault("enable_kitty_fix", True)
+    settings.setdefault("terminal", {})
+    settings["terminal"].setdefault("term", "xterm-256color")
+    settings["terminal"].setdefault("enable_kitty_fix", True)
     config.setdefault("servers", [])
     config.setdefault("quick_commands", [])
 
@@ -139,7 +192,7 @@ def expand_home(value: str) -> str:
     if IS_WINDOWS:
         profile = os.environ.get("USERPROFILE")
         if profile:
-            return os.path.join(profile, value[2:].replace("/", "\\"))
+            return profile + "\\" + value[2:].replace("/", "\\")
     return str(Path(value).expanduser())
 
 
@@ -158,6 +211,15 @@ def display_command(server: dict) -> str:
     return " ".join(shlex.quote(arg) for arg in args)
 
 
+def remote_ssh_command(server: dict, command: str) -> str:
+    """Führt einen Befehl auf dem Server via SSH aus (im Terminal)."""
+    if IS_WINDOWS:
+        base = subprocess.list2cmdline(ssh_args(server))
+        return base + " " + subprocess.list2cmdline([command])
+    base = " ".join(shlex.quote(arg) for arg in ssh_args(server))
+    return base + " " + shlex.quote(command)
+
+
 def detect_terminal() -> str | None:
     if IS_WINDOWS:
         for name in ("wt", "cmd", "powershell"):
@@ -173,37 +235,44 @@ def detect_terminal() -> str | None:
     return None
 
 
-def terminal_command(terminal: str, server: dict) -> list[str]:
+def open_in_terminal(terminal: str, title: str, command: str, hold: bool = True, done_message: str = "Fertig.") -> list[str]:
-    title = f"PulseGate - {server.get('name') or server.get('host')}"
-
     if IS_WINDOWS:
-        params = subprocess.list2cmdline(ssh_args(server))
         stem = Path(terminal).stem.lower()
         if stem in ("powershell", "pwsh"):
-            hold = f"& {params}; Write-Host ''; Write-Host 'SSH beendet.'; Read-Host 'Enter zum Schliessen...'"
+            suffix = f"; Write-Host ''; Write-Host '{done_message}'; Read-Host 'Enter zum Schliessen...'" if hold else ""
-            return [terminal, "-NoExit", "-Command", hold]
+            return [terminal, "-NoExit", "-Command", f"& {command}{suffix}"]
-        hold = f"{params} & echo. & echo SSH beendet. Bitte Fenster schliessen... & pause"
+        suffix = f" & echo. & echo {done_message} & pause" if hold else ""
+        inner = command + suffix
         if stem == "wt":
-            return [terminal, "new-tab", "--title", title, "cmd.exe", "/k", hold]
+            return [terminal, "new-tab", "--title", title, "cmd.exe", "/k", inner]
-        return [terminal, "/k", hold]
+        return [terminal, "/k", inner]
-
-    hold = " ".join(shlex.quote(arg) for arg in ssh_args(server)) + "; printf '\\nSSH beendet. Enter zum Schließen...'; read _"
 
+    suffix = f"; printf '\\n{done_message} Enter zum Schließen...'; read _" if hold else ""
+    inner = command + suffix
     name = Path(terminal).name
     if name == "kitty":
-        return [terminal, "--title", title, "sh", "-lc", hold]
+        return [terminal, "--title", title, "sh", "-lc", inner]
     if name == "alacritty":
-        return [terminal, "--title", title, "-e", "sh", "-lc", hold]
+        return [terminal, "--title", title, "-e", "sh", "-lc", inner]
     if name == "konsole":
-        return [terminal, "--new-tab", "-p", f"tabtitle={title}", "-e", "sh", "-lc", hold]
+        return [terminal, "--new-tab", "-p", f"tabtitle={title}", "-e", "sh", "-lc", inner]
     if name == "gnome-terminal":
-        return [terminal, "--title", title, "--", "sh", "-lc", hold]
+        return [terminal, "--title", title, "--", "sh", "-lc", inner]
     if name == "xfce4-terminal":
-        return [terminal, "--title", title, "--command", f"sh -lc {shlex.quote(hold)}"]
+        return [terminal, "--title", title, "--command", f"sh -lc {shlex.quote(inner)}"]
     if name == "xterm":
-        return [terminal, "-T", title, "-e", "sh", "-lc", hold]
+        return [terminal, "-T", title, "-e", "sh", "-lc", inner]
 
-    return [terminal, "-e", "sh", "-lc", hold]
+    return [terminal, "-e", "sh", "-lc", inner]
+
+
+def terminal_command(terminal: str, server: dict) -> list[str]:
+    title = f"PulseGate - {server.get('name') or server.get('host')}"
+    if IS_WINDOWS:
+        command = subprocess.list2cmdline(ssh_args(server))
+        return open_in_terminal(terminal, title, command, done_message="SSH beendet.")
+    command = " ".join(shlex.quote(arg) for arg in ssh_args(server))
+    return open_in_terminal(terminal, title, command, done_message="SSH beendet.")
 
 
 class PulseGateDesktop(tk.Tk):
@@ -213,7 +282,13 @@ class PulseGateDesktop(tk.Tk):
         self.config_data = load_config(path)
         self.selected_index = 0
         self.current_view = "servers"
+        self.group_filter = "Alle"
         self.terminal = detect_terminal()
+        self.reachability: dict[int, bool] = {}
+        self.checked_hosts: dict[tuple[str, int], bool] = {}
+        self.reach_labels: dict[int, tk.Label] = {}
+
+        COLORS.update(THEMES.get(self.config_data["settings"].get("theme", "neon-green"), THEMES["neon-green"]))
 
         self.vars: dict[str, tk.Variable] = {}
         self.settings_vars: dict[str, tk.Variable] = {}
@@ -223,13 +298,17 @@ class PulseGateDesktop(tk.Tk):
         self.status_var = tk.StringVar(value="Bereit")
 
         self.title(APP_TITLE)
-        self.geometry("1180x760")
+        self.geometry("1240x800")
-        self.minsize(980, 640)
+        self.minsize(1000, 640)
         self.configure(bg=COLORS["bg"])
 
         self._build_layout()
         self._refresh_all()
 
+        self.bind("<F5>", lambda _event: self._reload())
+        self.bind("<Control-n>", lambda _event: self._add_server())
+        self.bind("<Control-s>", lambda _event: self._save_current_server())
+
     def _build_layout(self) -> None:
         root = tk.Frame(self, bg=COLORS["bg"])
         root.pack(fill="both", expand=True)
@@ -238,12 +317,12 @@ class PulseGateDesktop(tk.Tk):
         self._build_content(root)
 
     def _build_sidebar(self, parent: tk.Frame) -> None:
-        sidebar = tk.Frame(parent, bg=COLORS["sidebar"], width=282)
+        sidebar = tk.Frame(parent, bg=COLORS["sidebar"], width=290)
         sidebar.pack(side="left", fill="y")
         sidebar.pack_propagate(False)
 
         brand = tk.Frame(sidebar, bg=COLORS["sidebar"])
-        brand.pack(fill="x", padx=22, pady=(24, 22))
+        brand.pack(fill="x", padx=22, pady=(24, 20))
 
         mark = tk.Label(
             brand,
@@ -263,9 +342,13 @@ class PulseGateDesktop(tk.Tk):
 
         self._label(sidebar, "Suche", bg=COLORS["sidebar"], fg=COLORS["muted"], font=FONT_SMALL).pack(anchor="w", padx=22)
         search = self._entry(sidebar, self.search_var)
-        search.pack(fill="x", padx=22, pady=(7, 22))
+        search.pack(fill="x", padx=22, pady=(7, 14))
         self.search_var.trace_add("write", lambda *_: self._refresh_server_cards())
 
+        self._label(sidebar, "Gruppenfilter", bg=COLORS["sidebar"], fg=COLORS["muted"], font=FONT_SMALL).pack(anchor="w", padx=22)
+        self.filter_row = tk.Frame(sidebar, bg=COLORS["sidebar"])
+        self.filter_row.pack(fill="x", padx=22, pady=(7, 20))
+
         nav = tk.Frame(sidebar, bg=COLORS["sidebar"])
         nav.pack(fill="x", padx=22)
         for view, label in (("servers", "Server"), ("commands", "Commands"), ("settings", "Settings")):
@@ -274,12 +357,14 @@ class PulseGateDesktop(tk.Tk):
             self.nav_buttons[view] = button
 
         stats = self._card(sidebar, bg=COLORS["surface"], padx=14, pady=12)
-        stats.pack(fill="x", padx=22, pady=(28, 0))
+        stats.pack(fill="x", padx=22, pady=(28, 10))
         self.server_count_label = self._label(stats, "", bg=COLORS["surface"], fg=COLORS["text"], font=FONT_CARD)
         self.server_count_label.pack(anchor="w")
         terminal_text = "Terminal bereit" if self.terminal else "Kein Terminal gefunden"
         self._label(stats, terminal_text, bg=COLORS["surface"], fg=COLORS["accent_2"], font=FONT_SMALL).pack(anchor="w", pady=(7, 0))
-        self._label(stats, str(self.path), bg=COLORS["surface"], fg=COLORS["muted"], font=FONT_SMALL, wraplength=205).pack(anchor="w", pady=(8, 0))
+        self._label(stats, str(self.path), bg=COLORS["surface"], fg=COLORS["muted"], font=FONT_SMALL, wraplength=210).pack(anchor="w", pady=(8, 0))
+
+        self._button(sidebar, "Über PulseGate", self._about, variant="ghost").pack(fill="x", padx=22, side="bottom", pady=(0, 16))
 
     def _build_content(self, parent: tk.Frame) -> None:
         content = tk.Frame(parent, bg=COLORS["bg"])
@@ -309,7 +394,7 @@ class PulseGateDesktop(tk.Tk):
         self._build_settings_page(self.pages["settings"])
 
     def _build_servers_page(self, page: tk.Frame) -> None:
-        left = tk.Frame(page, bg=COLORS["bg"], width=390)
+        left = tk.Frame(page, bg=COLORS["bg"], width=400)
         left.pack(side="left", fill="both", padx=(0, 18))
         left.pack_propagate(False)
 
@@ -317,11 +402,10 @@ class PulseGateDesktop(tk.Tk):
         scrollbar = tk.Scrollbar(left, orient="vertical", command=self.server_canvas.yview, bg=COLORS["bg"], troughcolor=COLORS["bg"])
         self.server_cards = tk.Frame(self.server_canvas, bg=COLORS["bg"])
         self.server_cards.bind("<Configure>", lambda _event: self.server_canvas.configure(scrollregion=self.server_canvas.bbox("all")))
-        self.server_canvas.create_window((0, 0), window=self.server_cards, anchor="nw", width=372)
+        self.server_canvas.create_window((0, 0), window=self.server_cards, anchor="nw", width=382)
         self.server_canvas.configure(yscrollcommand=scrollbar.set)
         self.server_canvas.pack(side="left", fill="both", expand=True)
         scrollbar.pack(side="right", fill="y")
-        self.server_canvas.bind_all("<MouseWheel>", self._on_mousewheel)
 
         editor_outer = self._card(page, bg=COLORS["surface"], padx=18, pady=18)
         editor_outer.pack(side="left", fill="both", expand=True)
@@ -355,18 +439,7 @@ class PulseGateDesktop(tk.Tk):
             var = tk.StringVar()
             self.vars[key] = var
             if key == "auth":
-                widget = tk.OptionMenu(cell, var, "key", "password")
+                widget = self._option_menu(cell, var, ("key", "password"))
-                widget.configure(
-                    bg=COLORS["field"],
-                    fg=COLORS["text"],
-                    activebackground=COLORS["surface_2"],
-                    activeforeground=COLORS["text"],
-                    highlightthickness=1,
-                    highlightbackground=COLORS["line"],
-                    relief="flat",
-                    font=FONT,
-                )
-                widget["menu"].configure(bg=COLORS["surface_2"], fg=COLORS["text"], activebackground=COLORS["accent"], activeforeground="#001a10")
             else:
                 widget = self._entry(cell, var)
             widget.pack(fill="x", pady=(6, 0), ipady=3)
@@ -385,18 +458,31 @@ class PulseGateDesktop(tk.Tk):
             activeforeground=COLORS["text"],
             selectcolor=COLORS["field"],
             font=FONT,
-        ).pack(anchor="w", pady=(12, 4))
+        ).pack(anchor="w", pady=(12, 0))
+
+        hint = tk.Frame(editor_outer, bg=COLORS["surface"])
+        hint.pack(fill="x", pady=(10, 14))
+        self._label(
+            hint,
+            "Tipp: Doppelklick auf einen Server verbindet direkt · Rechtsklick öffnet das Kontextmenü · Ctrl+S speichert.",
+            bg=COLORS["surface"],
+            fg=COLORS["muted"],
+            font=FONT_SMALL,
+            wraplength=520,
+        ).pack(anchor="w")
 
         actions = tk.Frame(editor_outer, bg=COLORS["surface"])
-        actions.pack(fill="x", pady=(16, 14))
+        actions.pack(fill="x")
         self._button(actions, "Verbinden", self._connect).pack(side="left")
         self._button(actions, "SSH Befehl", self._show_command, variant="ghost").pack(side="left", padx=(8, 0))
+        self._button(actions, "Kopieren", self._copy_command, variant="ghost").pack(side="left", padx=(8, 0))
         self._button(actions, "Löschen", self._delete_current_server, variant="danger").pack(side="right")
+        self._button(actions, "Duplizieren", self._duplicate_current_server, variant="ghost").pack(side="right", padx=(0, 8))
         self._button(actions, "Speichern", self._save_current_server).pack(side="right", padx=(0, 8))
 
         self.command_text = tk.Text(
             editor_outer,
-            height=6,
+            height=5,
             bg=COLORS["field"],
             fg=COLORS["accent"],
             insertbackground=COLORS["text"],
@@ -406,27 +492,44 @@ class PulseGateDesktop(tk.Tk):
             padx=12,
             pady=10,
         )
-        self.command_text.pack(fill="both", expand=True)
+        self.command_text.pack(fill="both", expand=True, pady=(14, 0))
 
     def _build_commands_page(self, page: tk.Frame) -> None:
         self.commands_host = tk.Frame(page, bg=COLORS["bg"])
         self.commands_host.pack(fill="both", expand=True)
+        intro = self._card(self.commands_host, bg=COLORS["surface"], padx=16, pady=14)
+        intro.pack(fill="x", pady=(0, 12))
+        self._label(intro, "Quick Commands", bg=COLORS["surface"], fg=COLORS["text"], font=FONT_CARD).pack(anchor="w")
+        self._label(
+            intro,
+            "Befehle können lokal auf diesem Rechner oder auf dem aktuell ausgewählten Server (via SSH) ausgeführt werden.",
+            bg=COLORS["surface"],
+            fg=COLORS["muted"],
+            font=FONT_SMALL,
+            wraplength=760,
+        ).pack(anchor="w", pady=(5, 0))
 
     def _build_settings_page(self, page: tk.Frame) -> None:
         panel = self._card(page, bg=COLORS["surface"], padx=22, pady=22)
         panel.pack(anchor="nw", fill="x")
 
-        self._label(panel, "Terminal", bg=COLORS["surface"], fg=COLORS["text"], font=(UI_FONT[0], 18, "bold")).pack(anchor="w")
+        self._label(panel, "Darstellung", bg=COLORS["surface"], fg=COLORS["text"], font=(UI_FONT[0], 18, "bold")).pack(anchor="w")
-        self._label(panel, "Diese Werte werden beim Starten einer SSH-Verbindung genutzt.", bg=COLORS["surface"], fg=COLORS["muted"], font=FONT_SMALL).pack(anchor="w", pady=(4, 18))
+        self._label(panel, "Das Theme wird beim App-Start angewandt.", bg=COLORS["surface"], fg=COLORS["muted"], font=FONT_SMALL).pack(anchor="w", pady=(4, 12))
 
+        theme_label = self._label(panel, "Theme", bg=COLORS["surface"], fg=COLORS["muted"], font=FONT_SMALL)
+        theme_label.pack(anchor="w")
         self.settings_vars["theme"] = tk.StringVar()
-        self.settings_vars["term"] = tk.StringVar()
+        self._option_menu(panel, self.settings_vars["theme"], tuple(THEMES.keys())).pack(fill="x", pady=(6, 18), ipady=3)
-        self.settings_vars["enable_kitty_fix"] = tk.BooleanVar()
 
-        for label, key in (("Theme", "theme"), ("TERM Override", "term")):
+        self._label(panel, "Terminal", bg=COLORS["surface"], fg=COLORS["text"], font=(UI_FONT[0], 18, "bold")).pack(anchor="w")
+        self._label(panel, "Diese Werte werden beim Starten einer SSH-Verbindung genutzt.", bg=COLORS["surface"], fg=COLORS["muted"], font=FONT_SMALL).pack(anchor="w", pady=(4, 12))
+
+        self.settings_vars["term"] = tk.StringVar()
+        for label, key in (("TERM Override", "term"),):
             self._label(panel, label, bg=COLORS["surface"], fg=COLORS["muted"], font=FONT_SMALL).pack(anchor="w")
             self._entry(panel, self.settings_vars[key]).pack(fill="x", pady=(6, 14), ipady=3)
 
+        self.settings_vars["enable_kitty_fix"] = tk.BooleanVar()
         tk.Checkbutton(
             panel,
             text="Kitty Fix global aktivieren",
@@ -439,32 +542,71 @@ class PulseGateDesktop(tk.Tk):
             font=FONT,
         ).pack(anchor="w", pady=(0, 18))
 
-        self._button(panel, "Settings speichern", self._save_settings).pack(anchor="e")
+        actions = tk.Frame(panel, bg=COLORS["surface"])
+        actions.pack(fill="x")
+        self._button(actions, "Config-Ordner öffnen", self._open_config_folder, variant="ghost").pack(side="left")
+        self._button(actions, "Settings speichern", self._save_settings).pack(side="right")
 
     def _refresh_all(self) -> None:
-        self.server_count_label.configure(text=f"{len(self.config_data['servers'])} Server")
+        self._refresh_group_chips()
         self._refresh_server_cards()
         self._load_selected_server()
         self._refresh_commands()
         self._refresh_settings()
         self._show_view(self.current_view)
 
+    def _refresh_group_chips(self) -> None:
+        for child in self.filter_row.winfo_children():
+            child.destroy()
+
+        groups = ["Alle"] + sorted({server.get("group") or "Keine Gruppe" for server in self.config_data["servers"]})
+        for group in groups:
+            selected = group == self.group_filter
+            chip = tk.Label(
+                self.filter_row,
+                text=group,
+                bg=COLORS["accent"] if selected else COLORS["surface_2"],
+                fg="#001a10" if selected else COLORS["text"],
+                font=FONT_SMALL,
+                padx=9,
+                pady=4,
+                cursor="hand2",
+                highlightthickness=1,
+                highlightbackground=COLORS["line"],
+            )
+            chip.pack(side="left", padx=(0, 6))
+            chip.bind("<Button-1>", lambda _event, value=group: self._set_group_filter(value))
+
+    def _set_group_filter(self, group: str) -> None:
+        self.group_filter = group
+        self._refresh_group_chips()
+        self._refresh_server_cards()
+
     def _refresh_server_cards(self) -> None:
         for child in self.server_cards.winfo_children():
             child.destroy()
+        self.reach_labels.clear()
 
-        query = self.search_var.get().strip().lower()
+        query = (self.search_var.get() or "").strip().lower()
         rendered = 0
         for index, server in enumerate(self.config_data["servers"]):
             haystack = " ".join(str(server.get(key, "")) for key in ("name", "host", "user", "group", "auth")).lower()
             if query and query not in haystack:
                 continue
+            group = server.get("group") or "Keine Gruppe"
+            if self.group_filter != "Alle" and group != self.group_filter:
+                continue
             self._server_card(self.server_cards, server, index).pack(fill="x", pady=(0, 10))
             rendered += 1
+            self._check_reachability(server, index)
 
         if rendered == 0:
             self._empty_state(self.server_cards, "Keine Server gefunden").pack(fill="x")
 
+        total = len(self.config_data["servers"])
+        text = f"{rendered} / {total} Server" if rendered != total else f"{total} Server"
+        self.server_count_label.configure(text=text)
+
     def _server_card(self, parent: tk.Frame, server: dict, index: int) -> tk.Frame:
         selected = index == self.selected_index
         bg = COLORS["surface_2"] if selected else COLORS["surface"]
@@ -487,13 +629,63 @@ class PulseGateDesktop(tk.Tk):
         if server.get("kitty_fix"):
             self._chip(chips, "kitty", COLORS["muted"], bg=bg).pack(side="left", padx=(6, 0))
 
+        status = self.reachability.get(index)
+        if status is None:
+            status_text, status_fg = "● prüfe ...", COLORS["muted"]
+        elif status:
+            status_text, status_fg = "● erreichbar", STATUS_OK
+        else:
+            status_text, status_fg = "● nicht erreichbar", COLORS["danger"]
+        status_label = self._label(inner, status_text, bg=bg, fg=status_fg, font=FONT_SMALL)
+        status_label.pack(anchor="w", pady=(8, 0))
+        self.reach_labels[index] = status_label
+
         for widget in (card, inner):
             widget.bind("<Button-1>", lambda _event, value=index: self._select_server(value))
+            widget.bind("<Double-Button-1>", lambda _event, value=index: self._connect_at(value))
+            widget.bind("<Button-3>", lambda event, value=index: self._server_menu(event, value))
         for child in inner.winfo_children():
             child.bind("<Button-1>", lambda _event, value=index: self._select_server(value))
+            child.bind("<Double-Button-1>", lambda _event, value=index: self._connect_at(value))
+            child.bind("<Button-3>", lambda event, value=index: self._server_menu(event, value))
 
         return card
 
+    def _check_reachability(self, server: dict, index: int) -> None:
+        host = str(server.get("host") or "").strip()
+        if not host:
+            return
+        try:
+            port = int(server.get("port") or 22)
+        except (TypeError, ValueError):
+            return
+
+        cache_key = (host, port)
+        if cache_key in self.checked_hosts:
+            self.reachability[index] = self.checked_hosts[cache_key]
+            self._update_reachability_indicator(index, self.checked_hosts[cache_key])
+            return
+
+        def worker() -> None:
+            try:
+                with socket.create_connection((host, port), timeout=CONNECT_TIMEOUT):
+                    reachable = True
+            except OSError:
+                reachable = False
+            self.checked_hosts[cache_key] = reachable
+            self.reachability[index] = reachable
+            self.after(0, lambda: self._update_reachability_indicator(index, reachable))
+
+        threading.Thread(target=worker, daemon=True).start()
+
+    def _update_reachability_indicator(self, index: int, reachable: bool) -> None:
+        label = self.reach_labels.get(index)
+        if label is not None and label.winfo_exists():
+            label.configure(
+                text="● erreichbar" if reachable else "● nicht erreichbar",
+                fg=STATUS_OK if reachable else COLORS["danger"],
+            )
+
     def _refresh_commands(self) -> None:
         for child in self.commands_host.winfo_children():
             child.destroy()
@@ -509,6 +701,20 @@ class PulseGateDesktop(tk.Tk):
             self._label(card, command.get("name") or "Command", bg=COLORS["surface"], fg=COLORS["text"], font=FONT_CARD).pack(anchor="w")
             self._label(card, command.get("command") or "", bg=COLORS["surface"], fg=COLORS["accent"], font=UI_FONT_MONO).pack(anchor="w", pady=(7, 0))
 
+            actions = tk.Frame(card, bg=COLORS["surface"])
+            actions.pack(fill="x", pady=(12, 0))
+            self._button(
+                actions,
+                "Lokal ausführen",
+                lambda value=command: self._run_quick_command(value, via_ssh=False),
+                variant="ghost",
+            ).pack(side="left")
+            self._button(
+                actions,
+                "Auf Server ausführen",
+                lambda value=command: self._run_quick_command(value, via_ssh=True),
+            ).pack(side="left", padx=(8, 0))
+
     def _refresh_settings(self) -> None:
         settings = self.config_data["settings"]
         terminal = settings["terminal"]
@@ -609,6 +815,18 @@ class PulseGateDesktop(tk.Tk):
         self.current_view = "servers"
         self._refresh_all()
 
+    def _duplicate_current_server(self) -> None:
+        if not self.config_data["servers"]:
+            return
+        original = self.config_data["servers"][self.selected_index]
+        duplicate = dict(original)
+        duplicate["name"] = f"{original.get('name') or 'Server'} (Kopie)"
+        self.config_data["servers"].append(duplicate)
+        self.selected_index = len(self.config_data["servers"]) - 1
+        save_config(self.path, self.config_data)
+        self.status_var.set("Server dupliziert")
+        self._refresh_all()
+
     def _delete_current_server(self) -> None:
         if not self.config_data["servers"]:
             return
@@ -630,7 +848,29 @@ class PulseGateDesktop(tk.Tk):
             },
         }
         save_config(self.path, self.config_data)
-        self.status_var.set("Settings gespeichert")
+        self.status_var.set("Settings gespeichert (Theme ab Neustart)")
+        self.config_data = load_config(self.path)
+        self._refresh_settings()
+
+    def _open_config_folder(self) -> None:
+        folder = self.path.parent
+        try:
+            if IS_WINDOWS:
+                os.startfile(str(folder))
+            else:
+                subprocess.Popen(["xdg-open", str(folder)])
+        except OSError as error:
+            messagebox.showerror(APP_TITLE, str(error))
+            return
+        self.status_var.set(f"Config-Ordner geöffnet: {folder}")
+
+    def _about(self) -> None:
+        messagebox.showinfo(
+            "Über PulseGate Desktop",
+            f"PulseGate Desktop {APP_VERSION}\n\n"
+            "SSH-Manager für Linux und Windows.\n\n"
+            f"{APP_URL}",
+        )
 
     def _reload(self) -> None:
         self.config_data = load_config(self.path)
@@ -651,6 +891,20 @@ class PulseGateDesktop(tk.Tk):
         self.command_text.delete("1.0", "end")
         self.command_text.insert("1.0", display_command(server))
 
+    def _copy_command(self) -> None:
+        server = self._current_server()
+        if not server:
+            return
+        self.clipboard_clear()
+        self.clipboard_append(display_command(server))
+        self.update()
+        self.status_var.set(f"SSH Befehl kopiert: {server.get('name')}")
+
+    def _connect_at(self, index: int) -> None:
+        self.selected_index = index
+        self._load_selected_server()
+        self._connect()
+
     def _connect(self) -> None:
         server = self._current_server()
         if not server:
@@ -675,9 +929,46 @@ class PulseGateDesktop(tk.Tk):
         self.status_var.set(f"SSH gestartet: {server.get('name')}")
         self._show_command()
 
-    def _on_mousewheel(self, event: tk.Event) -> None:
+    def _run_quick_command(self, command: dict, via_ssh: bool = False) -> None:
-        if self.current_view == "servers":
+        if not self.terminal:
-            self.server_canvas.yview_scroll(int(-1 * (event.delta / 120)), "units")
+            messagebox.showerror(APP_TITLE, "Kein unterstützter Terminal-Emulator gefunden.")
+            return
+
+        raw = (command.get("command") or "").strip()
+        name = command.get("name") or "Quick Command"
+        if not raw:
+            messagebox.showwarning(APP_TITLE, f"'{name}' hat keinen Befehl.")
+            return
+
+        try:
+            if via_ssh:
+                server = self._current_server()
+                if not server:
+                    return
+                inner = remote_ssh_command(server, raw)
+                title = f"PulseGate - {server.get('name')}"
+            else:
+                inner = raw
+                title = f"PulseGate - {name}"
+            subprocess.Popen(open_in_terminal(self.terminal, title, inner))
+        except OSError as error:
+            messagebox.showerror(APP_TITLE, str(error))
+            return
+
+        self.status_var.set(f"Befehl gestartet: {name}" + (" (via SSH)" if via_ssh else ""))
+
+    def _server_menu(self, event: tk.Event, index: int) -> None:
+        self._select_server(index)
+        menu = tk.Menu(self, tearoff=0)
+        menu.add_command(label="Verbinden", command=self._connect)
+        menu.add_command(label="SSH Befehl kopieren", command=self._copy_command)
+        menu.add_separator()
+        menu.add_command(label="Duplizieren", command=self._duplicate_current_server)
+        menu.add_command(label="Löschen ...", command=self._delete_current_server)
+        try:
+            menu.tk_popup(event.x_root, event.y_root)
+        finally:
+            menu.grab_release()
 
     def _label(self, parent: tk.Widget, text: str, *, bg: str, fg: str, font: tuple, wraplength: int = 0) -> tk.Label:
         return tk.Label(parent, text=text, bg=bg, fg=fg, font=font, anchor="w", justify="left", wraplength=wraplength)
@@ -696,10 +987,31 @@ class PulseGateDesktop(tk.Tk):
             font=FONT,
         )
 
+    def _option_menu(self, parent: tk.Widget, variable: tk.StringVar, options: tuple[str, ...]) -> tk.OptionMenu:
+        widget = tk.OptionMenu(parent, variable, *options)
+        widget.configure(
+            bg=COLORS["field"],
+            fg=COLORS["text"],
+            activebackground=COLORS["surface_2"],
+            activeforeground=COLORS["text"],
+            highlightthickness=1,
+            highlightbackground=COLORS["line"],
+            relief="flat",
+            font=FONT,
+        )
+        widget["menu"].configure(
+            bg=COLORS["surface_2"],
+            fg=COLORS["text"],
+            activebackground=COLORS["accent"],
+            activeforeground="#001a10",
+            font=FONT,
+        )
+        return widget
+
     def _button(self, parent: tk.Widget, text: str, command, *, variant: str = "primary") -> tk.Button:
         bg = COLORS["accent"]
         fg = "#001a10"
-        active_bg = "#42ffb5"
+        active_bg = COLORS["accent"]
         if variant == "ghost":
             bg = COLORS["surface_2"]
             fg = COLORS["text"]

installer/installer.iss

@@ -2,7 +2,7 @@
 ; Kompilieren: iscc installer\installer.iss   (Inno Setup 6)
 
 #define MyAppName "PulseGate Desktop"
-#define MyAppVersion "1.0.0"
+#define MyAppVersion "1.1.0"
 #define MyAppPublisher "Pepe44DEV"
 #define MyAppURL "https://git.pepe44.dev/Pepe44DEV/PulseGate-GUI"
 #define MyAppExeName "PulseGate.exe"