fix(core): allow cross-project context traversal

src/basic_memory/api/v2/utils.py

@@ -18,7 +18,9 @@ from basic_memory.services.context_service import (
 
 
 class EntityBatchLookup(Protocol):
-    async def find_by_ids_for_hydration(self, ids: List[int]) -> Sequence[Any]: ...
+    async def find_by_ids_for_hydration(
+        self, ids: List[int], *, include_cross_project: bool = False
+    ) -> Sequence[Any]: ...
 
 
 class EntityServiceBatchLookup(Protocol):
@@ -88,7 +90,7 @@ async def to_graph_context(
                 result_count=len(entity_ids_needed),
             ):
                 entities = await entity_repository.find_by_ids_for_hydration(
-                    list(entity_ids_needed)
+                    list(entity_ids_needed), include_cross_project=True
                 )
             for e in entities:
                 entity_title_lookup[e.id] = e.title