fix: increase runbook truncation limit 800->2000 chars

training/prompts.py

@@ -66,7 +66,7 @@ def format_observation(obs, step: int, last_action_result: dict | None = None) -
         ok = result.get("ok", False)
         if ok:
             data = result.get("data", "")
-            data_str = str(data)[:800]
+            data_str = str(data)[:2000]
             parts.append(f"\n**Result (success):**\n{data_str}")
         else:
             error = result.get("error", "Unknown error")