fix(graph): give the shared debate/risk routers a complete path_map

- should_continue_debate (2 edges) and should_continue_risk_analysis (3 edges)
  each returned more targets than any one edge mapped; a fall-through under
  prompt/i18n/refactor drift crashed LangGraph mid-run
- share a complete DEBATE_PATH_MAP / RISK_ANALYSIS_PATH_MAP across every edge #1088

tests/test_risk_router_path_map.py

@@ -0,0 +1,81 @@
+"""Shared-router / path_map completeness (#1088).
+
+Both `should_continue_risk_analysis` (three risk edges) and
+`should_continue_debate` (two research-debate edges) are single routers whose
+return set is larger than any one edge previously mapped. Each edge now shares a
+complete path map (`RISK_ANALYSIS_PATH_MAP` / `DEBATE_PATH_MAP`), so a
+fall-through return can never hit a missing entry -- which would crash LangGraph
+mid-run on prompt/i18n/refactor drift in the speaker labels.
+"""
+import pytest
+
+from tradingagents.graph.conditional_logic import ConditionalLogic
+from tradingagents.graph.setup import DEBATE_PATH_MAP, RISK_ANALYSIS_PATH_MAP
+
+
+def _state(latest_speaker, count=0):
+    return {"risk_debate_state": {"latest_speaker": latest_speaker, "count": count}}
+
+
+def _debate_state(current_response, count=0):
+    return {"investment_debate_state": {"current_response": current_response, "count": count}}
+
+
+@pytest.mark.unit
+@pytest.mark.parametrize("latest_speaker", [
+    "Aggressive", "Aggressive Analyst",
+    "Conservative", "Conservative Analyst",
+    "Neutral", "Neutral Analyst",
+    "",                          # drift: empty label
+    "Aggressive Risk Analyst",   # drift: node renamed
+    "Agresivo",                  # drift: i18n / translated label
+])
+def test_router_return_always_routable(latest_speaker):
+    logic = ConditionalLogic(max_risk_discuss_rounds=1)
+    target = logic.should_continue_risk_analysis(_state(latest_speaker))
+    assert target in RISK_ANALYSIS_PATH_MAP
+
+
+@pytest.mark.unit
+def test_router_terminates_at_round_limit():
+    logic = ConditionalLogic(max_risk_discuss_rounds=1)
+    # count >= 3 * rounds routes to the Portfolio Manager (debate ends)
+    assert logic.should_continue_risk_analysis(_state("Neutral", count=3)) == "Portfolio Manager"
+
+
+@pytest.mark.unit
+def test_path_map_covers_full_router_range():
+    logic = ConditionalLogic(max_risk_discuss_rounds=1)
+    returns = {
+        logic.should_continue_risk_analysis(_state(s, c))
+        for s in ("Aggressive", "Conservative", "Neutral", "drift")
+        for c in (0, 99)
+    }
+    # Every value the router can emit is a key in the shared map...
+    assert returns <= set(RISK_ANALYSIS_PATH_MAP)
+    # ...and the terminal target is reachable.
+    assert "Portfolio Manager" in returns
+
+
+@pytest.mark.unit
+@pytest.mark.parametrize("current_response", [
+    "Bull", "Bull Researcher", "Bear", "Bear Researcher",
+    "",                       # drift: empty label
+    "Optimista",              # drift: i18n / translated label
+])
+def test_debate_router_return_always_routable(current_response):
+    logic = ConditionalLogic(max_debate_rounds=1)
+    target = logic.should_continue_debate(_debate_state(current_response))
+    assert target in DEBATE_PATH_MAP
+
+
+@pytest.mark.unit
+def test_debate_path_map_covers_full_router_range():
+    logic = ConditionalLogic(max_debate_rounds=1)
+    returns = {
+        logic.should_continue_debate(_debate_state(s, c))
+        for s in ("Bull", "Bear", "drift")
+        for c in (0, 99)
+    }
+    assert returns <= set(DEBATE_PATH_MAP)
+    assert "Research Manager" in returns  # terminal reachable