feat: MemoryBases GUI Component (#12903)

* Memory Base component for LF GUI.

Added option session_id filtration to MemoryBase component. The component filters on all chat history for a particular flow, and keeps it session scoped based on the session_id filtration toggle.

fix: Add kb_path validation before metadata load

* chore: auto-bake note keys and regenerate backend locales/en.json [skip ci]

* chore: trigger CI checks

* [autofix.ci] apply automated fixes

* [autofix.ci] apply automated fixes (attempt 2/3)

---------

Co-authored-by: autofix-ci[bot] <114827586+autofix-ci[bot]@users.noreply.github.com>
Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>
Co-authored-by: vijay kumar katuri <vijay.katuri@ibm.com>

Author: 4 people

src/backend/base/langflow/initial_setup/starter_projects/Knowledge Retrieval.json

@@ -4508,6 +4508,19 @@
   "components.memory.inputs.template.info.e9ef56ea": "The template to use for formatting the data. It can contain the keys {text}, {sender} or any other key in the message data.",
   "components.memory.outputs.dataframe.display_name.16d1c905": "Table",
   "components.memory.outputs.messages_text.display_name.04d7b483": "Messages",
+  "components.memorybase.description.888ca359": "Retrieve session-scoped chat memory from a Memory Base attached to this flow.",
+  "components.memorybase.display_name.6c40130b": "Memory Base",
+  "components.memorybase.inputs.filter_by_session.display_name.0c2249c9": "Filter by Session",
+  "components.memorybase.inputs.filter_by_session.info.eb2bd47b": "If enabled, only memories from the current session will be retrieved. Enable this if you want per-session chat history data separation.",
+  "components.memorybase.inputs.include_metadata.display_name.b54db8c6": "Include Metadata",
+  "components.memorybase.inputs.include_metadata.info.8444856c": "Include chunk metadata (session_id, sender, timestamp, …) on each row.",
+  "components.memorybase.inputs.memory_base.display_name.6c40130b": "Memory Base",
+  "components.memorybase.inputs.memory_base.info.47660e76": "Memory Base whose captured conversation history will be searched.",
+  "components.memorybase.inputs.search_query.display_name.3ad6e0f4": "Search Query",
+  "components.memorybase.inputs.search_query.info.c3807864": "Query used for semantic retrieval against the memory base.",
+  "components.memorybase.inputs.top_k.display_name.9bfd228f": "Top K Results",
+  "components.memorybase.inputs.top_k.info.be18489f": "Number of top results to return.",
+  "components.memorybase.outputs.retrieve_data.display_name.219c4a6c": "Results",
   "components.mergedatacomponent.description.060578fe": "Combines data using different operations",
   "components.mergedatacomponent.display_name.9723ac83": "Combine Data",
   "components.mergedatacomponent.inputs.data_inputs.display_name.cbf37dd2": "Data Inputs",

src/backend/base/langflow/initial_setup/starter_projects/Vector Store RAG.json

@@ -21,7 +21,7 @@ def component_class(self):
     @pytest.fixture(autouse=True)
     def mock_knowledge_base_path(self, tmp_path):
         """Mock the knowledge base root path directly."""
-        with patch("lfx.components.files_and_knowledge.ingestion._KNOWLEDGE_BASES_ROOT_PATH", tmp_path):
+        with patch("lfx.components.files_and_knowledge._kb_paths._KNOWLEDGE_BASES_ROOT_PATH", tmp_path):
             yield
 
     @pytest.fixture