Add workspace deletion with confirmation dialog

- Add removeWorkspace service function in tauri.ts
- Add removeWorkspace hook function with confirmation dialog
- Add workspace context menu with delete option in Sidebar
- Wire up delete handler in App.tsx
- Use Tauri ask dialog for confirmation with Delete/Cancel buttons

Author: Vrutin

src/App.tsx

@@ -91,6 +91,7 @@ function MainApp() {
     connectWorkspace,
     markWorkspaceConnected,
     updateWorkspaceSettings,
+    removeWorkspace,
     hasLoaded,
     refreshWorkspaces,
   } = useWorkspaces({ onDebug: addDebugEntry });
@@ -355,6 +356,9 @@ function MainApp() {
         onDeleteThread={(workspaceId, threadId) => {
           removeThread(workspaceId, threadId);
         }}
+        onDeleteWorkspace={(workspaceId) => {
+          void removeWorkspace(workspaceId);
+        }}
       />
       <div
         className="sidebar-resizer"

src/components/Sidebar.tsx

@@ -23,6 +23,7 @@ type SidebarProps = {
   onToggleWorkspaceCollapse: (workspaceId: string, collapsed: boolean) => void;
   onSelectThread: (workspaceId: string, threadId: string) => void;
   onDeleteThread: (workspaceId: string, threadId: string) => void;
+  onDeleteWorkspace: (workspaceId: string) => void;
 };
 
 export function Sidebar({
@@ -41,6 +42,7 @@ export function Sidebar({
   onToggleWorkspaceCollapse,
   onSelectThread,
   onDeleteThread,
+  onDeleteWorkspace,
 }: SidebarProps) {
   const [expandedWorkspaces, setExpandedWorkspaces] = useState(
     new Set<string>(),
@@ -69,6 +71,28 @@ export function Sidebar({
     await menu.popup(position, window);
   }
 
+  async function showWorkspaceMenu(
+    event: React.MouseEvent,
+    workspaceId: string,
+  ) {
+    event.preventDefault();
+    event.stopPropagation();
+    const deleteItem = await MenuItem.new({
+      text: "Delete",
+      action: () => onDeleteWorkspace(workspaceId),
+    });
+    const copyItem = await MenuItem.new({
+      text: "Copy ID",
+      action: async () => {
+        await navigator.clipboard.writeText(workspaceId);
+      },
+    });
+    const menu = await Menu.new({ items: [copyItem, deleteItem] });
+    const window = getCurrentWindow();
+    const position = new LogicalPosition(event.clientX, event.clientY);
+    await menu.popup(position, window);
+  }
+
   const usagePercent = accountRateLimits?.primary?.usedPercent;
   const globalUsagePercent = accountRateLimits?.secondary?.usedPercent;
   const credits = accountRateLimits?.credits ?? null;
@@ -150,6 +174,7 @@ export function Sidebar({
                   role="button"
                   tabIndex={0}
                   onClick={() => onSelectWorkspace(entry.id)}
+                  onContextMenu={(event) => showWorkspaceMenu(event, entry.id)}
                   onKeyDown={(event) => {
                     if (event.key === "Enter" || event.key === " ") {
                       event.preventDefault();

src/hooks/useWorkspaces.ts

@@ -1,11 +1,13 @@
 import { useCallback, useEffect, useMemo, useState } from "react";
 import type { DebugEntry } from "../types";
 import type { WorkspaceInfo, WorkspaceSettings } from "../types";
+import { ask } from "@tauri-apps/plugin-dialog";
 import {
   addWorkspace as addWorkspaceService,
   connectWorkspace as connectWorkspaceService,
   listWorkspaces,
   pickWorkspacePath,
+  removeWorkspace as removeWorkspaceService,
   updateWorkspaceSettings as updateWorkspaceSettingsService,
 } from "../services/tauri";
 
@@ -149,6 +151,48 @@ export function useWorkspaces(options: UseWorkspacesOptions = {}) {
     }
   }
 
+  async function removeWorkspace(workspaceId: string) {
+    const workspace = workspaces.find((entry) => entry.id === workspaceId);
+    const workspaceName = workspace?.name || "this workspace";
+
+    const confirmed = await ask(
+      `Are you sure you want to delete "${workspaceName}"?\n\nThis will remove the workspace from CodexMonitor.`,
+      {
+        title: "Delete Workspace",
+        kind: "warning",
+        okLabel: "Delete",
+        cancelLabel: "Cancel",
+      },
+    );
+
+    if (!confirmed) {
+      return;
+    }
+
+    onDebug?.({
+      id: `${Date.now()}-client-remove-workspace`,
+      timestamp: Date.now(),
+      source: "client",
+      label: "workspace/remove",
+      payload: { workspaceId },
+    });
+    try {
+      await removeWorkspaceService(workspaceId);
+      setWorkspaces((prev) => prev.filter((entry) => entry.id !== workspaceId));
+      setActiveWorkspaceId((prev) => (prev === workspaceId ? null : prev));
+      await refreshWorkspaces();
+    } catch (error) {
+      onDebug?.({
+        id: `${Date.now()}-client-remove-workspace-error`,
+        timestamp: Date.now(),
+        source: "error",
+        label: "workspace/remove error",
+        payload: error instanceof Error ? error.message : String(error),
+      });
+      throw error;
+    }
+  }
+
   return {
     workspaces,
     activeWorkspace,
@@ -158,6 +202,7 @@ export function useWorkspaces(options: UseWorkspacesOptions = {}) {
     connectWorkspace,
     markWorkspaceConnected,
     updateWorkspaceSettings,
+    removeWorkspace,
     hasLoaded,
     refreshWorkspaces,
   };

src/services/tauri.ts

@@ -29,6 +29,10 @@ export async function updateWorkspaceSettings(
   return invoke<WorkspaceInfo>("update_workspace_settings", { id, settings });
 }
 
+export async function removeWorkspace(id: string): Promise<void> {
+  return invoke("remove_workspace", { id });
+}
+
 export async function connectWorkspace(id: string): Promise<void> {
   return invoke("connect_workspace", { id });
 }