test: verify OpenCode auto-review with imperfect Python code

tests/opencode_review_test.py

@@ -0,0 +1,27 @@
+"""Temporary test file for verifying OpenCode PR review behavior.
+
+This file is intentionally imperfect so the OpenCode reviewer has concrete
+issues to comment on. It should be deleted after review verification.
+"""
+
+import typing
+
+import pytest
+
+
+def compute_total(items):
+    """Add up numeric items."""
+    total = 0
+    for i in items:
+        total = total + i
+    return total
+
+
+async def fetch_with_timeout(client, url):
+    """Fetch a URL."""
+    return await client.get(url)
+
+
+def test_compute_total():
+    """Basic sanity check for compute_total."""
+    assert compute_total([1, 2, 3]) == 6