Bundle MCP server with deps, add signup validation

- Bundle mcp-server.mjs via esbuild so transitive deps (zod etc.) are
  included — fixes Claude Desktop failing to launch the MCP server
- Add basic email/password validation on signup form
- Simplify electron-builder config to unpack only the bundled file

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: Test

electron/ipc.ts

@@ -93,12 +93,12 @@ export function setupIPC() {
     try {
       const configPath = getClaudeConfigPath()
 
-      // Get absolute path to mcp-server.mjs
-      // In packaged app, asarUnpack puts it at app.asar.unpacked/mcp-server.mjs
+      // Get absolute path to the bundled mcp-server.mjs in dist-electron/
+      // In packaged app, asarUnpack puts it at app.asar.unpacked/dist-electron/mcp-server.mjs
       const appPath = app.getAppPath()
       const mcpServerPath = appPath.includes('.asar')
-        ? path.resolve(appPath.replace('.asar', '.asar.unpacked'), 'mcp-server.mjs')
-        : path.resolve(appPath, 'mcp-server.mjs')
+        ? path.resolve(appPath.replace('.asar', '.asar.unpacked'), 'dist-electron', 'mcp-server.mjs')
+        : path.resolve(appPath, 'dist-electron', 'mcp-server.mjs')
 
       if (!fs.existsSync(mcpServerPath)) {
         console.error('[claude] MCP server not found at:', mcpServerPath)

package.json

@@ -5,7 +5,7 @@
   "main": "dist-electron/main.js",
   "scripts": {
     "dev": "vite",
-    "build": "vite build",
+    "build": "vite build && npx esbuild mcp-server.mjs --bundle --platform=node --format=esm --outfile=dist-electron/mcp-server.mjs",
     "preview": "vite preview",
     "package": "npm run build && electron-builder",
     "test": "vitest run",
@@ -46,13 +46,10 @@
       "dist/**/*",
       "dist-electron/**/*",
       "resources/**/*",
-      "build/**/*",
-      "mcp-server.mjs",
-      "node_modules/@modelcontextprotocol/**/*"
+      "build/**/*"
     ],
     "asarUnpack": [
-      "mcp-server.mjs",
-      "node_modules/@modelcontextprotocol/**/*"
+      "dist-electron/mcp-server.mjs"
     ],
     "mac": {
       "icon": "build/icon.icns",

src/views/Settings.tsx

@@ -115,6 +115,20 @@ function AccountSection() {
     if (!showAuth || !email.trim() || !password.trim()) return
     setLoading(true)
     setError('')
+
+    if (showAuth === 'signup') {
+      if (!/^[^\s@]+@[^\s@]+\.[^\s@]+$/.test(email.trim())) {
+        setError('Please enter a valid email address')
+        setLoading(false)
+        return
+      }
+      if (password.length < 8) {
+        setError('Password must be at least 8 characters')
+        setLoading(false)
+        return
+      }
+    }
+
     const result = showAuth === 'signup'
       ? await window.purroxy.account.signup(email, password)
       : await window.purroxy.account.login(email, password)