feat: add persistent desktop assistant workspace

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

src/main/agent/process-environment.test.ts

@@ -0,0 +1,27 @@
+import { describe, expect, it } from 'vitest'
+import { buildRuntimeEnvironment } from './process-environment'
+
+describe('buildRuntimeEnvironment', () => {
+  it('keeps required runtime values and excludes unrelated parent secrets', () => {
+    const environment = buildRuntimeEnvironment(
+      {
+        GOODBUDDY_RUNTIME_TOKEN: 'scoped-token'
+      },
+      {
+        PATH: 'C:\\Tools',
+        TEMP: 'C:\\Temp',
+        ANTHROPIC_API_KEY: 'provider-key',
+        GOODBUDDY_DELEGATION_TOKEN: 'must-not-leak',
+        GITHUB_TOKEN: 'must-not-leak',
+        NODE_OPTIONS: '--require malicious.js'
+      }
+    )
+
+    expect(environment).toEqual({
+      PATH: 'C:\\Tools',
+      TEMP: 'C:\\Temp',
+      ANTHROPIC_API_KEY: 'provider-key',
+      GOODBUDDY_RUNTIME_TOKEN: 'scoped-token'
+    })
+  })
+})