feat: simplify AI design for young creators

tests/unit/youth-issue-copy.test.ts

@@ -0,0 +1,49 @@
+import { describe, expect, it } from 'vitest';
+import {
+  youthCompilationIssueMessage,
+  youthTaskIssueMessage,
+} from '@/pages/ImageCanvas/youth-issue-copy';
+
+describe('youth AI Design issue copy', () => {
+  it('uses code and path instead of exposing a compiler message', () => {
+    const message = youthCompilationIssueMessage({
+      code: 'aspect_ratio_required',
+      message: 'Choose an aspect ratio supported by the frozen route.',
+      severity: 'blocker',
+      path: 'output.aspect_ratio',
+    });
+
+    expect(message).toBe('先选择作品形状。');
+    expect(message).not.toContain('frozen route');
+  });
+
+  it('keeps unknown compiler codes safe and actionable', () => {
+    const message = youthCompilationIssueMessage({
+      code: 'future_compiler_rule',
+      message: 'Internal compiler graph node 17 is invalid.',
+      severity: 'blocker',
+    });
+
+    expect(message).toBe('还需要调整一个关键设置，请打开“精细调整”看看。');
+    expect(message).not.toContain('compiler');
+  });
+
+  it('uses a calm fallback for unknown platform task failures', () => {
+    const message = youthTaskIssueMessage({
+      code: 'future_provider_error',
+      message: 'HTTP 422 from provider operation abc.',
+      recoveryOwner: 'platform',
+    });
+
+    expect(message).toBe('这次制作没有完成，请调整后再试。');
+    expect(message).not.toContain('HTTP');
+  });
+
+  it('explains unknown operator recovery without suggesting a duplicate run', () => {
+    expect(youthTaskIssueMessage({
+      code: 'future_resolution_case',
+      message: 'Manual reconciliation required.',
+      recoveryOwner: 'operator',
+    })).toBe('平台正在确认这次制作，不会重复制作或重复扣费。');
+  });
+});