feat(web): add versioned first-run welcome

packages/client/ui-settings-general/tests/host.spec.ts

@@ -0,0 +1,29 @@
+import { Context } from 'cordis'
+import { describe, expect, it } from 'vitest'
+import { Settings, settingsNamespace, type SettingsNamespace } from '@deepseek-ai/dsh-settings'
+import { apply } from '../src/index.ts'
+import { WELCOME_NOTICE_SETTINGS_NAMESPACE } from '../src/onboarding-copy.ts'
+
+class MemorySettings extends Settings {
+  readonly writable = true
+  protected load(): Promise<Record<string, unknown>> { return Promise.resolve({}) }
+  protected persist(_ns: SettingsNamespace, _section: Record<string, unknown>): Promise<void> {
+    return Promise.resolve()
+  }
+}
+
+describe('ui-settings-general host', () => {
+  it('registers and disposes the durable onboarding namespace with its fiber', async () => {
+    const ctx = new Context()
+    await ctx.plugin(MemorySettings).await()
+    const fiber = ctx.plugin({ apply })
+    await fiber.await()
+    expect(ctx.settings.describe().map(row => row.ns)).toContain(
+      settingsNamespace(WELCOME_NOTICE_SETTINGS_NAMESPACE),
+    )
+    await fiber.dispose()
+    expect(ctx.settings.describe().map(row => row.ns)).not.toContain(
+      settingsNamespace(WELCOME_NOTICE_SETTINGS_NAMESPACE),
+    )
+  })
+})