docs: drop comments that describe code no longer there

- agents.context no longer holds a message reset between analysts
- main.py no longer ends on a reflection step it does not take

main.py

@@ -14,5 +14,3 @@ ta = TradingAgentsGraph(debug=True, config=config)
 # forward propagate
 _, decision = ta.propagate("NVDA", "2026-09-01")
 print(decision)
-
-# Memorize mistakes and reflect

tests/test_alpha_vantage_hardening.py

@@ -102,7 +102,7 @@ def test_fundamentals_non_json_body_unchanged(monkeypatch):
 
 
 # ---------------------------------------------------------------------------
-# Date trim (see the rationale on the unguarded trim in alpha_vantage_common)
+# Date trim (see the rationale on the unguarded trim in alpha_vantage.common)
 # ---------------------------------------------------------------------------
 
 _DAILY_CSV = (

tradingagents/agents/context.py

@@ -1,5 +1,4 @@
-"""Prompt context shared by the agents: instrument identity, output language,
+"""Prompt context shared by the agents: instrument identity, output language and portfolio."""
-portfolio, and the message reset between analysts."""
 
 import functools
 import logging