fix(graph): register get_verified_market_snapshot in the market ToolNode

The market analyst is bound to call get_verified_market_snapshot and its prompt
requires it as the source of truth, but the tool was missing from the market
ToolNode executor — so the call failed and the model reported it "unavailable"
and skipped verification. Register it (with a regression guard) so the snapshot
actually runs and grounds the report.

tests/test_market_toolnode.py

@@ -0,0 +1,23 @@
+"""The market analyst is bound (and prompt-instructed) to call
+get_verified_market_snapshot; if the executor ToolNode doesn't register it, the
+call fails and the model reports the tool "unavailable" and skips verification.
+
+Regression guard for that wiring gap (snapshot bound to the LLM but missing from
+the market ToolNode).
+"""
+import pytest
+
+from tradingagents.graph.trading_graph import TradingAgentsGraph
+
+
+@pytest.mark.unit
+def test_market_toolnode_can_execute_verified_snapshot():
+    # _create_tool_nodes does not use self -> call unbound (avoids building LLMs).
+    nodes = TradingAgentsGraph._create_tool_nodes(None)
+    market_tools = set(nodes["market"].tools_by_name)
+    assert "get_verified_market_snapshot" in market_tools, (
+        "get_verified_market_snapshot is bound to the market analyst but not "
+        "registered in the market ToolNode, so the model's call fails."
+    )
+    # the other core market tools must remain too
+    assert {"get_stock_data", "get_indicators"} <= market_tools