更新文档，调整内存 URI 格式和写入模式示例；移除过时的 OpenViking 内容补充逻辑，并添加相应的单元测试

tests/test_memory_system_service.py

@@ -420,6 +420,29 @@ def test_write_memory_delegates_to_openviking_content_write_only():
     assert everos.calls == []
 
 
+def test_write_memory_supports_openviking_create_mode():
+    openviking = FakeOpenViking()
+    everos = FakeEverOS()
+    service = MemorySystemService(openviking=openviking, everos=everos)
+
+    response = asyncio.run(service.write_memory(MemoryWriteRequest(
+        user_id="tom",
+        user_key="tom-key",
+        uri="viking://user/tom/memories/preferences/饮食偏好.md",
+        content="用户喜欢喝茶",
+        mode="create",
+        wait=True,
+    )))
+
+    assert response.status == "success"
+    assert response.memory == {"status": "ok", "result": {"uri": "viking://user/tom/memories/preferences/饮食偏好.md", "mode": "create"}}
+    assert openviking.calls == [
+        ("credential_for_user", "tom", "tom-key", None),
+        ("write_memory", "key-tom", "viking://user/tom/memories/preferences/饮食偏好.md", "用户喜欢喝茶", "create", True),
+    ]
+    assert everos.calls == []
+
+
 def test_delete_memory_delegates_to_openviking_only_and_defaults_non_recursive():
     openviking = FakeOpenViking()
     everos = FakeEverOS()
@@ -488,59 +511,6 @@ def test_search_returns_compact_items_and_backend_diagnostics_without_duplicate_
     assert not _has_key(response.backends["everos"].result, "original_data")
 
 
-def test_search_includes_latest_openviking_memory_content_for_memory_hits():
-    class FakeOpenVikingWithStaleSearch(FakeOpenViking):
-        async def search(
-            self,
-            user_key: str,
-            query: str,
-            limit: int,
-            level: int = 2,
-            score_threshold: float = 0.8,
-            target_uri: str = "viking://user/memories",
-        ) -> dict:
-            self.calls.append(("search", user_key, query, limit, level, score_threshold, target_uri))
-            return {
-                "status": "ok",
-                "result": {
-                    "memories": [
-                        {
-                            "context_type": "memory",
-                            "uri": "viking://user/tom/memories/preferences/drink.md",
-                            "level": 2,
-                            "score": 0.91,
-                            "abstract": "用户喜欢拿铁咖啡。",
-                        }
-                    ],
-                    "resources": [],
-                    "skills": [],
-                    "total": 1,
-                },
-            }
-
-        async def read_memory(self, user_key: str, uri: str) -> dict:
-            self.calls.append(("read_memory", user_key, uri))
-            return {"status": "ok", "result": {"uri": uri, "content": "用户不喜欢咖啡，只喜欢下午喝奶茶"}}
-
-    openviking = FakeOpenVikingWithStaleSearch()
-    service = MemorySystemService(openviking=openviking, everos=FakeEverOS())
-
-    response = asyncio.run(service.search(
-        SearchRequest(user_id="tom", user_key="tom-key", session_id="sess-1", query="我喜欢喝什么？", limit=5),
-    ))
-
-    assert response.items[0] == {
-        "source_backend": "openviking",
-        "context_type": "memory",
-        "uri": "viking://user/tom/memories/preferences/drink.md",
-        "level": 2,
-        "score": 0.91,
-        "abstract": "用户喜欢拿铁咖啡。",
-        "content": "用户不喜欢咖啡，只喜欢下午喝奶茶",
-    }
-    assert ("read_memory", "key-tom", "viking://user/tom/memories/preferences/drink.md") in openviking.calls
-
-
 def test_session_context_combines_openviking_context_and_everos_search_items():
     openviking = FakeOpenViking()
     everos = FakeEverOSVerbose()