chore(repo): make the release gate reproducible and clean product URLs

PyJHora absence is now partial, tests write research manifests to tmp, the registry allows experimental_variant, and product links point at the Gitea repo. Early logs move to docs/history.

Co-authored-by: Cursor <cursoragent@cursor.com>

tests/test_user_invocation_acceptance_contract.py

@@ -148,8 +148,23 @@ def test_one_command_user_invocation_acceptance_check() -> None:
 
     assert completed.returncode == 0, completed.stderr or completed.stdout
     report = json.loads(completed.stdout)
-    assert report["status"] == "pass"
+    # 原值＝status 必须 pass；新值＝pass 或 partial；原因＝PyJHora 缺席是外部参照降级，不应把验收检查打成 fail
+    assert report["status"] in {"pass", "partial"}
     assert report["checks"]["user_invocation_tests"] is True
     assert report["checks"]["guided_topics_entrypoint"] is True
     assert report["checks"]["external_adapter_diagnostics"] is True
     assert report["external_adapter_status"] in {"pass", "partial", "complete"}
+
+
+def test_missing_reference_engine_is_partial_not_fail() -> None:
+    from scripts.user_invocation_acceptance_check import resolve_acceptance_status
+
+    assert resolve_acceptance_status([], {"engines": {"PyJHora/JHora": {"status": "available"}}}) == "pass"
+    assert (
+        resolve_acceptance_status(
+            [],
+            {"engines": {"PyJHora/JHora": {"missing_dependency": "pyjhora"}}},
+        )
+        == "partial"
+    )
+    assert resolve_acceptance_status(["user_invocation_pytest_failed"], {"engines": {}}) == "fail"