test(ai): live ollama embed integration (gated)

Auto-skips when CT 102 / OLLAMA_URL is unreachable.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

tests/integration/embed_live.test.js

@@ -0,0 +1,26 @@
+import { describe, it, expect } from 'vitest';
+
+async function ollamaUp() {
+  try {
+    const res = await fetch(
+      (process.env.OLLAMA_URL || 'http://192.168.1.185:11434') + '/api/tags',
+      { signal: AbortSignal.timeout(2_000) }
+    );
+    return res.ok;
+  } catch { return false; }
+}
+
+const isUp = await ollamaUp();
+
+describe.runIf(isUp)('Ollama live integration', () => {
+  it('embedText returns 768 dims for nomic-embed-text', async () => {
+    const { embedText } = await import('../../lib/ai/ollama.js');
+    const v = await embedText('the cradle aesthetic');
+    expect(v).toHaveLength(768);
+    expect(v.every(x => typeof x === 'number')).toBe(true);
+  });
+});
+
+describe.skipIf(isUp)('Ollama live integration (skipped — service down)', () => {
+  it('placeholder', () => { expect(true).toBe(true); });
+});