diff --git a/frontend/src/components/common/ContextMenu.vue b/frontend/src/components/common/ContextMenu.vue
new file mode 100644
index 0000000..c46b566
--- /dev/null
+++ b/frontend/src/components/common/ContextMenu.vue
@@ -0,0 +1,97 @@
+<template>
+  <Teleport to="body">
+    <div
+      v-if="visible"
+      class="fixed inset-0 z-50"
+      @click="close"
+      @contextmenu.prevent="close"
+    >
+      <div
+        ref="menuRef"
+        class="fixed bg-[#161b22] border border-[#30363d] rounded-lg shadow-2xl py-1 min-w-[160px] overflow-hidden"
+        :style="{ left: position.x + 'px', top: position.y + 'px' }"
+        @click.stop
+      >
+        <template v-for="(item, idx) in items" :key="idx">
+          <!-- Separator -->
+          <div v-if="item.separator" class="my-1 border-t border-[#30363d]" />
+
+          <!-- Menu item -->
+          <button
+            v-else
+            class="w-full flex items-center gap-2.5 px-3 py-1.5 text-xs text-left transition-colors cursor-pointer"
+            :class="item.danger
+              ? 'text-[var(--wraith-accent-red)] hover:bg-[var(--wraith-accent-red)]/10'
+              : 'text-[var(--wraith-text-secondary)] hover:bg-[#30363d] hover:text-[var(--wraith-text-primary)]'
+            "
+            @click="handleClick(item)"
+          >
+            <span v-if="item.icon" class="w-4 h-4 flex items-center justify-center shrink-0" v-html="item.icon" />
+            <span class="flex-1">{{ item.label }}</span>
+            <span v-if="item.shortcut" class="text-[10px] text-[var(--wraith-text-muted)]">{{ item.shortcut }}</span>
+          </button>
+        </template>
+      </div>
+    </div>
+  </Teleport>
+</template>
+
+<script setup lang="ts">
+import { ref, nextTick } from "vue";
+
+export interface ContextMenuItem {
+  label?: string;
+  icon?: string;
+  shortcut?: string;
+  danger?: boolean;
+  separator?: boolean;
+  action?: () => void;
+}
+
+const visible = ref(false);
+const position = ref({ x: 0, y: 0 });
+const items = ref<ContextMenuItem[]>([]);
+const menuRef = ref<HTMLDivElement | null>(null);
+
+function open(event: MouseEvent, menuItems: ContextMenuItem[]): void {
+  items.value = menuItems;
+  visible.value = true;
+
+  // Position at cursor, adjusting if near viewport edges
+  nextTick(() => {
+    const menu = menuRef.value;
+    if (!menu) {
+      position.value = { x: event.clientX, y: event.clientY };
+      return;
+    }
+
+    let x = event.clientX;
+    let y = event.clientY;
+
+    const menuWidth = menu.offsetWidth;
+    const menuHeight = menu.offsetHeight;
+
+    if (x + menuWidth > window.innerWidth) {
+      x = window.innerWidth - menuWidth - 4;
+    }
+    if (y + menuHeight > window.innerHeight) {
+      y = window.innerHeight - menuHeight - 4;
+    }
+
+    position.value = { x, y };
+  });
+}
+
+function close(): void {
+  visible.value = false;
+}
+
+function handleClick(item: ContextMenuItem): void {
+  if (item.action) {
+    item.action();
+  }
+  close();
+}
+
+defineExpose({ open, close, visible });
+</script>
diff --git a/frontend/src/components/connections/ConnectionEditDialog.vue b/frontend/src/components/connections/ConnectionEditDialog.vue
new file mode 100644
index 0000000..b25a7d7
--- /dev/null
+++ b/frontend/src/components/connections/ConnectionEditDialog.vue
@@ -0,0 +1,292 @@
+<template>
+  <Teleport to="body">
+    <div
+      v-if="visible"
+      class="fixed inset-0 z-50 flex items-center justify-center"
+      @click.self="close"
+      @keydown.esc="close"
+    >
+      <!-- Backdrop -->
+      <div class="absolute inset-0 bg-black/50" @click="close" />
+
+      <!-- Dialog -->
+      <div class="relative w-full max-w-md bg-[#161b22] border border-[#30363d] rounded-lg shadow-2xl overflow-hidden">
+        <!-- Header -->
+        <div class="flex items-center justify-between px-4 py-3 border-b border-[#30363d]">
+          <h3 class="text-sm font-semibold text-[var(--wraith-text-primary)]">
+            {{ isEditing ? "Edit Connection" : "New Connection" }}
+          </h3>
+          <button
+            class="text-[var(--wraith-text-muted)] hover:text-[var(--wraith-text-primary)] transition-colors cursor-pointer"
+            @click="close"
+          >
+            <svg class="w-4 h-4" viewBox="0 0 16 16" fill="currentColor">
+              <path d="M3.72 3.72a.75.75 0 0 1 1.06 0L8 6.94l3.22-3.22a.749.749 0 1 1 1.06 1.06L9.06 8l3.22 3.22a.749.749 0 1 1-1.06 1.06L8 9.06l-3.22 3.22a.749.749 0 1 1-1.06-1.06L6.94 8 3.72 4.78a.75.75 0 0 1 0-1.06Z" />
+            </svg>
+          </button>
+        </div>
+
+        <!-- Body -->
+        <div class="px-4 py-4 space-y-3 max-h-[60vh] overflow-y-auto">
+          <!-- Name -->
+          <div>
+            <label class="block text-xs text-[var(--wraith-text-secondary)] mb-1">Name</label>
+            <input
+              v-model="form.name"
+              type="text"
+              placeholder="My Server"
+              class="w-full px-3 py-2 text-sm rounded bg-[#0d1117] border border-[#30363d] text-[var(--wraith-text-primary)] placeholder-[var(--wraith-text-muted)] outline-none focus:border-[var(--wraith-accent-blue)] transition-colors"
+            />
+          </div>
+
+          <!-- Hostname & Port -->
+          <div class="flex gap-3">
+            <div class="flex-1">
+              <label class="block text-xs text-[var(--wraith-text-secondary)] mb-1">Hostname</label>
+              <input
+                v-model="form.hostname"
+                type="text"
+                placeholder="192.168.1.1"
+                class="w-full px-3 py-2 text-sm rounded bg-[#0d1117] border border-[#30363d] text-[var(--wraith-text-primary)] placeholder-[var(--wraith-text-muted)] outline-none focus:border-[var(--wraith-accent-blue)] transition-colors"
+              />
+            </div>
+            <div class="w-24">
+              <label class="block text-xs text-[var(--wraith-text-secondary)] mb-1">Port</label>
+              <input
+                v-model.number="form.port"
+                type="number"
+                class="w-full px-3 py-2 text-sm rounded bg-[#0d1117] border border-[#30363d] text-[var(--wraith-text-primary)] outline-none focus:border-[var(--wraith-accent-blue)] transition-colors"
+              />
+            </div>
+          </div>
+
+          <!-- Protocol -->
+          <div>
+            <label class="block text-xs text-[var(--wraith-text-secondary)] mb-1">Protocol</label>
+            <div class="flex gap-2">
+              <button
+                class="flex-1 py-2 text-sm rounded border transition-colors cursor-pointer"
+                :class="form.protocol === 'ssh'
+                  ? 'bg-[#3fb950]/10 border-[#3fb950] text-[#3fb950]'
+                  : 'bg-[#0d1117] border-[#30363d] text-[var(--wraith-text-muted)] hover:border-[var(--wraith-text-secondary)]'
+                "
+                @click="setProtocol('ssh')"
+              >
+                SSH
+              </button>
+              <button
+                class="flex-1 py-2 text-sm rounded border transition-colors cursor-pointer"
+                :class="form.protocol === 'rdp'
+                  ? 'bg-[#1f6feb]/10 border-[#1f6feb] text-[#1f6feb]'
+                  : 'bg-[#0d1117] border-[#30363d] text-[var(--wraith-text-muted)] hover:border-[var(--wraith-text-secondary)]'
+                "
+                @click="setProtocol('rdp')"
+              >
+                RDP
+              </button>
+            </div>
+          </div>
+
+          <!-- Group -->
+          <div>
+            <label class="block text-xs text-[var(--wraith-text-secondary)] mb-1">Group</label>
+            <select
+              v-model="form.groupId"
+              class="w-full px-3 py-2 text-sm rounded bg-[#0d1117] border border-[#30363d] text-[var(--wraith-text-primary)] outline-none focus:border-[var(--wraith-accent-blue)] transition-colors cursor-pointer"
+            >
+              <option :value="null">No Group</option>
+              <option v-for="group in connectionStore.groups" :key="group.id" :value="group.id">
+                {{ group.name }}
+              </option>
+            </select>
+          </div>
+
+          <!-- Tags -->
+          <div>
+            <label class="block text-xs text-[var(--wraith-text-secondary)] mb-1">Tags (comma-separated)</label>
+            <input
+              v-model="tagsInput"
+              type="text"
+              placeholder="Prod, Linux, Web"
+              class="w-full px-3 py-2 text-sm rounded bg-[#0d1117] border border-[#30363d] text-[var(--wraith-text-primary)] placeholder-[var(--wraith-text-muted)] outline-none focus:border-[var(--wraith-accent-blue)] transition-colors"
+            />
+          </div>
+
+          <!-- Color -->
+          <div>
+            <label class="block text-xs text-[var(--wraith-text-secondary)] mb-1">Color Label</label>
+            <div class="flex gap-2">
+              <button
+                v-for="color in colorOptions"
+                :key="color.value"
+                class="w-6 h-6 rounded-full border-2 transition-transform cursor-pointer hover:scale-110"
+                :class="form.color === color.value ? 'border-white scale-110' : 'border-transparent'"
+                :style="{ backgroundColor: color.hex }"
+                :title="color.label"
+                @click="form.color = color.value"
+              />
+            </div>
+          </div>
+
+          <!-- Notes -->
+          <div>
+            <label class="block text-xs text-[var(--wraith-text-secondary)] mb-1">Notes</label>
+            <textarea
+              v-model="form.notes"
+              rows="3"
+              placeholder="Optional notes about this connection..."
+              class="w-full px-3 py-2 text-sm rounded bg-[#0d1117] border border-[#30363d] text-[var(--wraith-text-primary)] placeholder-[var(--wraith-text-muted)] outline-none focus:border-[var(--wraith-accent-blue)] transition-colors resize-none"
+            />
+          </div>
+        </div>
+
+        <!-- Footer -->
+        <div class="flex items-center justify-end gap-2 px-4 py-3 border-t border-[#30363d]">
+          <button
+            class="px-3 py-1.5 text-xs text-[var(--wraith-text-secondary)] hover:text-[var(--wraith-text-primary)] rounded border border-[#30363d] hover:bg-[#30363d] transition-colors cursor-pointer"
+            @click="close"
+          >
+            Cancel
+          </button>
+          <button
+            class="px-3 py-1.5 text-xs text-white bg-[#238636] hover:bg-[#2ea043] rounded transition-colors cursor-pointer"
+            :class="{ 'opacity-50 cursor-not-allowed': !isValid }"
+            :disabled="!isValid"
+            @click="save"
+          >
+            {{ isEditing ? "Save Changes" : "Create" }}
+          </button>
+        </div>
+      </div>
+    </div>
+  </Teleport>
+</template>
+
+<script setup lang="ts">
+import { ref, computed } from "vue";
+import { useConnectionStore, type Connection } from "@/stores/connection.store";
+
+interface ConnectionForm {
+  name: string;
+  hostname: string;
+  port: number;
+  protocol: "ssh" | "rdp";
+  groupId: number | null;
+  color: string;
+  notes: string;
+}
+
+const connectionStore = useConnectionStore();
+
+const visible = ref(false);
+const isEditing = ref(false);
+const editingId = ref<number | null>(null);
+const tagsInput = ref("");
+
+const form = ref<ConnectionForm>({
+  name: "",
+  hostname: "",
+  port: 22,
+  protocol: "ssh",
+  groupId: null,
+  color: "",
+  notes: "",
+});
+
+const colorOptions = [
+  { value: "", label: "None", hex: "#30363d" },
+  { value: "red", label: "Red", hex: "#f85149" },
+  { value: "orange", label: "Orange", hex: "#d29922" },
+  { value: "green", label: "Green", hex: "#3fb950" },
+  { value: "blue", label: "Blue", hex: "#58a6ff" },
+  { value: "purple", label: "Purple", hex: "#bc8cff" },
+  { value: "pink", label: "Pink", hex: "#f778ba" },
+];
+
+const isValid = computed(() => {
+  return form.value.name.trim() !== "" && form.value.hostname.trim() !== "" && form.value.port > 0;
+});
+
+function setProtocol(protocol: "ssh" | "rdp"): void {
+  form.value.protocol = protocol;
+  if (protocol === "ssh" && form.value.port === 3389) {
+    form.value.port = 22;
+  } else if (protocol === "rdp" && form.value.port === 22) {
+    form.value.port = 3389;
+  }
+}
+
+function openNew(groupId?: number): void {
+  isEditing.value = false;
+  editingId.value = null;
+  form.value = {
+    name: "",
+    hostname: "",
+    port: 22,
+    protocol: "ssh",
+    groupId: groupId ?? null,
+    color: "",
+    notes: "",
+  };
+  tagsInput.value = "";
+  visible.value = true;
+}
+
+function openEdit(conn: Connection): void {
+  isEditing.value = true;
+  editingId.value = conn.id;
+  form.value = {
+    name: conn.name,
+    hostname: conn.hostname,
+    port: conn.port,
+    protocol: conn.protocol,
+    groupId: conn.groupId,
+    color: "",
+    notes: "",
+  };
+  tagsInput.value = conn.tags?.join(", ") ?? "";
+  visible.value = true;
+}
+
+function close(): void {
+  visible.value = false;
+}
+
+function save(): void {
+  if (!isValid.value) return;
+
+  const tags = tagsInput.value
+    .split(",")
+    .map((t) => t.trim())
+    .filter((t) => t.length > 0);
+
+  if (isEditing.value && editingId.value !== null) {
+    // TODO: Replace with Wails binding — ConnectionService.UpdateConnection(id, input)
+    const conn = connectionStore.connections.find((c) => c.id === editingId.value);
+    if (conn) {
+      conn.name = form.value.name;
+      conn.hostname = form.value.hostname;
+      conn.port = form.value.port;
+      conn.protocol = form.value.protocol;
+      conn.groupId = form.value.groupId ?? conn.groupId;
+      conn.tags = tags;
+    }
+  } else {
+    // TODO: Replace with Wails binding — ConnectionService.CreateConnection(input)
+    const newId = Math.max(...connectionStore.connections.map((c) => c.id), 0) + 1;
+    connectionStore.connections.push({
+      id: newId,
+      name: form.value.name,
+      hostname: form.value.hostname,
+      port: form.value.port,
+      protocol: form.value.protocol,
+      groupId: form.value.groupId ?? 1,
+      tags,
+    });
+  }
+
+  close();
+}
+
+defineExpose({ openNew, openEdit, close, visible });
+</script>
diff --git a/frontend/src/components/sidebar/ConnectionTree.vue b/frontend/src/components/sidebar/ConnectionTree.vue
index ba925f8..b1beaeb 100644
--- a/frontend/src/components/sidebar/ConnectionTree.vue
+++ b/frontend/src/components/sidebar/ConnectionTree.vue
@@ -7,6 +7,7 @@
         <button
           class="w-full flex items-center gap-1.5 px-3 py-1.5 text-xs hover:bg-[var(--wraith-bg-tertiary)] transition-colors cursor-pointer"
           @click="toggleGroup(group.id)"
+          @contextmenu.prevent="showGroupMenu($event, group)"
         >
           <!-- Chevron -->
           <svg
@@ -42,6 +43,7 @@
             :key="conn.id"
             class="w-full flex items-center gap-2 pl-8 pr-3 py-1.5 text-xs hover:bg-[var(--wraith-bg-tertiary)] transition-colors cursor-pointer"
             @dblclick="handleConnect(conn)"
+            @contextmenu.prevent="showConnectionMenu($event, conn)"
           >
             <!-- Protocol dot -->
             <span
@@ -60,17 +62,29 @@
         </div>
       </div>
     </template>
+
+    <!-- Context menu -->
+    <ContextMenu ref="contextMenu" />
+
+    <!-- Edit dialog -->
+    <ConnectionEditDialog ref="editDialog" />
   </div>
 </template>
 
 <script setup lang="ts">
 import { ref } from "vue";
-import { useConnectionStore, type Connection } from "@/stores/connection.store";
+import { useConnectionStore, type Connection, type Group } from "@/stores/connection.store";
 import { useSessionStore } from "@/stores/session.store";
+import ContextMenu from "@/components/common/ContextMenu.vue";
+import type { ContextMenuItem } from "@/components/common/ContextMenu.vue";
+import ConnectionEditDialog from "@/components/connections/ConnectionEditDialog.vue";
 
 const connectionStore = useConnectionStore();
 const sessionStore = useSessionStore();
 
+const contextMenu = ref<InstanceType<typeof ContextMenu> | null>(null);
+const editDialog = ref<InstanceType<typeof ConnectionEditDialog> | null>(null);
+
 // All groups expanded by default
 const expandedGroups = ref<Set<number>>(
   new Set(connectionStore.groups.map((g) => g.id)),
@@ -88,4 +102,95 @@ function toggleGroup(groupId: number): void {
 function handleConnect(conn: Connection): void {
   sessionStore.connect(conn.id);
 }
+
+/** Show context menu for a connection. */
+function showConnectionMenu(event: MouseEvent, conn: Connection): void {
+  const items: ContextMenuItem[] = [
+    {
+      label: "Connect",
+      icon: `<svg viewBox="0 0 16 16" fill="currentColor" class="w-3.5 h-3.5"><path d="M1 2.75C1 1.784 1.784 1 2.75 1h10.5c.966 0 1.75.784 1.75 1.75v10.5A1.75 1.75 0 0 1 13.25 15H2.75A1.75 1.75 0 0 1 1 13.25Zm5 1.22v8.06l4.97-4.03L6 3.97Z"/></svg>`,
+      action: () => handleConnect(conn),
+    },
+    { separator: true },
+    {
+      label: "Edit",
+      icon: `<svg viewBox="0 0 16 16" fill="currentColor" class="w-3.5 h-3.5"><path d="M11.013 1.427a1.75 1.75 0 0 1 2.474 0l1.086 1.086a1.75 1.75 0 0 1 0 2.474l-8.61 8.61c-.21.21-.47.364-.756.445l-3.251.93a.75.75 0 0 1-.927-.928l.929-3.25c.081-.286.235-.547.445-.758l8.61-8.61Zm.176 4.823L9.75 4.81l-6.286 6.287a.25.25 0 0 0-.064.108l-.558 1.953 1.953-.558a.249.249 0 0 0 .108-.064Zm1.238-3.763a.25.25 0 0 0-.354 0L10.811 3.75l1.439 1.44 1.263-1.263a.25.25 0 0 0 0-.354Z"/></svg>`,
+      action: () => editDialog.value?.openEdit(conn),
+    },
+    {
+      label: "Duplicate",
+      icon: `<svg viewBox="0 0 16 16" fill="currentColor" class="w-3.5 h-3.5"><path d="M0 6.75C0 5.784.784 5 1.75 5h1.5a.75.75 0 0 1 0 1.5h-1.5a.25.25 0 0 0-.25.25v7.5c0 .138.112.25.25.25h7.5a.25.25 0 0 0 .25-.25v-1.5a.75.75 0 0 1 1.5 0v1.5A1.75 1.75 0 0 1 9.25 16h-7.5A1.75 1.75 0 0 1 0 14.25ZM5 1.75C5 .784 5.784 0 6.75 0h7.5C15.216 0 16 .784 16 1.75v7.5A1.75 1.75 0 0 1 14.25 11h-7.5A1.75 1.75 0 0 1 5 9.25Zm1.75-.25a.25.25 0 0 0-.25.25v7.5c0 .138.112.25.25.25h7.5a.25.25 0 0 0 .25-.25v-7.5a.25.25 0 0 0-.25-.25Z"/></svg>`,
+      action: () => duplicateConnection(conn),
+    },
+    { separator: true },
+    {
+      label: "Delete",
+      icon: `<svg viewBox="0 0 16 16" fill="currentColor" class="w-3.5 h-3.5"><path d="M11 1.75V3h2.25a.75.75 0 0 1 0 1.5H2.75a.75.75 0 0 1 0-1.5H5V1.75C5 .784 5.784 0 6.75 0h2.5C10.216 0 11 .784 11 1.75ZM4.496 6.675l.66 6.6a.25.25 0 0 0 .249.225h5.19a.25.25 0 0 0 .249-.225l.66-6.6a.75.75 0 0 1 1.492.149l-.66 6.6A1.748 1.748 0 0 1 10.595 15h-5.19a1.75 1.75 0 0 1-1.741-1.575l-.66-6.6a.75.75 0 1 1 1.492-.15ZM6.5 1.75V3h3V1.75a.25.25 0 0 0-.25-.25h-2.5a.25.25 0 0 0-.25.25Z"/></svg>`,
+      danger: true,
+      action: () => deleteConnection(conn),
+    },
+  ];
+
+  contextMenu.value?.open(event, items);
+}
+
+/** Show context menu for a group. */
+function showGroupMenu(event: MouseEvent, group: Group): void {
+  const items: ContextMenuItem[] = [
+    {
+      label: "New Connection",
+      icon: `<svg viewBox="0 0 16 16" fill="currentColor" class="w-3.5 h-3.5"><path d="M7.75 2a.75.75 0 0 1 .75.75V7h4.25a.75.75 0 0 1 0 1.5H8.5v4.25a.75.75 0 0 1-1.5 0V8.5H2.75a.75.75 0 0 1 0-1.5H7V2.75A.75.75 0 0 1 7.75 2Z"/></svg>`,
+      action: () => editDialog.value?.openNew(group.id),
+    },
+    { separator: true },
+    {
+      label: "Rename",
+      icon: `<svg viewBox="0 0 16 16" fill="currentColor" class="w-3.5 h-3.5"><path d="M11.013 1.427a1.75 1.75 0 0 1 2.474 0l1.086 1.086a1.75 1.75 0 0 1 0 2.474l-8.61 8.61c-.21.21-.47.364-.756.445l-3.251.93a.75.75 0 0 1-.927-.928l.929-3.25c.081-.286.235-.547.445-.758l8.61-8.61Zm.176 4.823L9.75 4.81l-6.286 6.287a.25.25 0 0 0-.064.108l-.558 1.953 1.953-.558a.249.249 0 0 0 .108-.064Zm1.238-3.763a.25.25 0 0 0-.354 0L10.811 3.75l1.439 1.44 1.263-1.263a.25.25 0 0 0 0-.354Z"/></svg>`,
+      action: () => {
+        // TODO: Replace with Wails binding — ConnectionService.RenameGroup(id, name)
+        const newName = prompt("Rename group:", group.name);
+        if (newName && newName !== group.name) {
+          group.name = newName;
+        }
+      },
+    },
+    {
+      label: "Delete",
+      icon: `<svg viewBox="0 0 16 16" fill="currentColor" class="w-3.5 h-3.5"><path d="M11 1.75V3h2.25a.75.75 0 0 1 0 1.5H2.75a.75.75 0 0 1 0-1.5H5V1.75C5 .784 5.784 0 6.75 0h2.5C10.216 0 11 .784 11 1.75ZM4.496 6.675l.66 6.6a.25.25 0 0 0 .249.225h5.19a.25.25 0 0 0 .249-.225l.66-6.6a.75.75 0 0 1 1.492.149l-.66 6.6A1.748 1.748 0 0 1 10.595 15h-5.19a1.75 1.75 0 0 1-1.741-1.575l-.66-6.6a.75.75 0 1 1 1.492-.15ZM6.5 1.75V3h3V1.75a.25.25 0 0 0-.25-.25h-2.5a.25.25 0 0 0-.25.25Z"/></svg>`,
+      danger: true,
+      action: () => deleteGroup(group),
+    },
+  ];
+
+  contextMenu.value?.open(event, items);
+}
+
+/** Duplicate a connection with a new name. */
+function duplicateConnection(conn: Connection): void {
+  // TODO: Replace with Wails binding — ConnectionService.CreateConnection(input)
+  const newId = Math.max(...connectionStore.connections.map((c) => c.id), 0) + 1;
+  connectionStore.connections.push({
+    ...conn,
+    id: newId,
+    name: `${conn.name} (copy)`,
+  });
+}
+
+/** Delete a connection after confirmation. */
+function deleteConnection(conn: Connection): void {
+  // TODO: Replace with Wails binding — ConnectionService.DeleteConnection(id)
+  const idx = connectionStore.connections.findIndex((c) => c.id === conn.id);
+  if (idx !== -1) {
+    connectionStore.connections.splice(idx, 1);
+  }
+}
+
+/** Delete a group after confirmation. */
+function deleteGroup(group: Group): void {
+  // TODO: Replace with Wails binding — ConnectionService.DeleteGroup(id)
+  const idx = connectionStore.groups.findIndex((g) => g.id === group.id);
+  if (idx !== -1) {
+    connectionStore.groups.splice(idx, 1);
+  }
+}
 </script>