feat: add persistent desktop assistant workspace

Co-authored-by: factory-droid[bot] <138933559+factory-droid[bot]@users.noreply.github.com>

src/main/agent/bundled-runtimes.test.ts

@@ -0,0 +1,61 @@
+import { join } from 'node:path'
+import { describe, expect, it } from 'vitest'
+import { resolveBundledRuntimePaths } from './bundled-runtimes'
+
+describe('bundled runtime paths', () => {
+  it('resolves development runtimes from fixed npm packages', () => {
+    const paths = resolveBundledRuntimePaths({
+      appPath: join('workspace', 'app'),
+      resourcesPath: join('electron', 'resources'),
+      packaged: false,
+      platform: 'linux'
+    })
+
+    expect(paths).toEqual({
+      opencode: join(
+        'workspace',
+        'app',
+        'node_modules',
+        'opencode-ai',
+        'bin',
+        'opencode.exe'
+      ),
+      continue: join(
+        'workspace',
+        'app',
+        'node_modules',
+        '@continuedev',
+        'cli',
+        'dist',
+        'cn.js'
+      )
+    })
+  })
+
+  it('resolves packaged runtimes outside the application archive', () => {
+    const paths = resolveBundledRuntimePaths({
+      appPath: join('installed', 'app.asar'),
+      resourcesPath: join('installed', 'resources'),
+      packaged: true,
+      platform: 'win32'
+    })
+
+    expect(paths).toEqual({
+      opencode: join(
+        'installed',
+        'resources',
+        'runtimes',
+        'opencode',
+        'opencode.exe'
+      ),
+      continue: join(
+        'installed',
+        'resources',
+        'runtimes',
+        'continue',
+        'dist',
+        'cn.js'
+      )
+    })
+  })
+})