feat(setup): implement setup wizard for CLI tools configuration

- Added a new SetupView component to guide users through the installation and authentication of Claude and Codex CLIs.
- Integrated IPC handlers for checking CLI status, installing, and authenticating both CLIs.
- Enhanced the app store to manage setup state, including first run detection and progress tracking.
- Updated the main application view to redirect to the setup wizard on first run.
- Improved user experience by providing clear instructions and feedback during the setup process.

These changes streamline the initial configuration of CLI tools, ensuring users can easily set up their development environment.

app/electron/preload.js

@@ -252,6 +252,59 @@ contextBridge.exposeInMainWorld("electronAPI", {
       };
     },
   },
+
+  // Setup & CLI Management API
+  setup: {
+    // Get comprehensive Claude CLI status
+    getClaudeStatus: () => ipcRenderer.invoke("setup:claude-status"),
+
+    // Get comprehensive Codex CLI status
+    getCodexStatus: () => ipcRenderer.invoke("setup:codex-status"),
+
+    // Install Claude CLI
+    installClaude: () => ipcRenderer.invoke("setup:install-claude"),
+
+    // Install Codex CLI
+    installCodex: () => ipcRenderer.invoke("setup:install-codex"),
+
+    // Authenticate Claude CLI
+    authClaude: () => ipcRenderer.invoke("setup:auth-claude"),
+
+    // Authenticate Codex CLI with optional API key
+    authCodex: (apiKey) => ipcRenderer.invoke("setup:auth-codex", { apiKey }),
+
+    // Store API key securely
+    storeApiKey: (provider, apiKey) =>
+      ipcRenderer.invoke("setup:store-api-key", { provider, apiKey }),
+
+    // Get stored API keys status
+    getApiKeys: () => ipcRenderer.invoke("setup:get-api-keys"),
+
+    // Configure Codex MCP server for a project
+    configureCodexMcp: (projectPath) =>
+      ipcRenderer.invoke("setup:configure-codex-mcp", { projectPath }),
+
+    // Get platform information
+    getPlatform: () => ipcRenderer.invoke("setup:get-platform"),
+
+    // Listen for installation progress
+    onInstallProgress: (callback) => {
+      const subscription = (_, data) => callback(data);
+      ipcRenderer.on("setup:install-progress", subscription);
+      return () => {
+        ipcRenderer.removeListener("setup:install-progress", subscription);
+      };
+    },
+
+    // Listen for auth progress
+    onAuthProgress: (callback) => {
+      const subscription = (_, data) => callback(data);
+      ipcRenderer.on("setup:auth-progress", subscription);
+      return () => {
+        ipcRenderer.removeListener("setup:auth-progress", subscription);
+      };
+    },
+  },
 });
 
 // Also expose a flag to detect if we're in Electron