Refactor: Move backend files to backend/ directory and split .gitignore

backend/tests/test_logging_context.py

@@ -0,0 +1,44 @@
+import logging
+import pytest
+import io
+import json
+from ea_chatbot.utils.logging import ContextLoggerAdapter, JsonFormatter
+
+@pytest.fixture
+def json_log_capture():
+    """Fixture to capture JSON logs."""
+    log_stream = io.StringIO()
+    logger = logging.getLogger("test_context")
+    logger.setLevel(logging.INFO)
+    for handler in logger.handlers[:]:
+        logger.removeHandler(handler)
+    
+    handler = logging.StreamHandler(log_stream)
+    handler.setFormatter(JsonFormatter())
+    logger.addHandler(handler)
+    return logger, log_stream
+
+def test_context_logger_adapter_injects_metadata(json_log_capture):
+    """Test that ContextLoggerAdapter injects metadata into the log record."""
+    logger, log_stream = json_log_capture
+    adapter = ContextLoggerAdapter(logger, {"run_id": "123", "node_name": "test_node"})
+    
+    adapter.info("test message")
+    
+    data = json.loads(log_stream.getvalue())
+    assert data["message"] == "test message"
+    assert data["run_id"] == "123"
+    assert data["node_name"] == "test_node"
+
+def test_context_logger_adapter_override_metadata(json_log_capture):
+    """Test that extra metadata can be provided during call."""
+    logger, log_stream = json_log_capture
+    adapter = ContextLoggerAdapter(logger, {"run_id": "123"})
+    
+    # Passing extra context via the 'extra' parameter in standard logging
+    # Note: Our adapter should handle merging this.
+    adapter.info("test message", extra={"node_name": "dynamic_node"})
+    
+    data = json.loads(log_stream.getvalue())
+    assert data["run_id"] == "123"
+    assert data["node_name"] == "dynamic_node"