add run/check scripts and revert llm to OpenRouter

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

run_pipeline.py

@@ -0,0 +1,34 @@
+"""Запуск пайплайна для выполнения заданий курса."""
+import asyncio
+import sys
+import os
+
+os.environ["PYTHONIOENCODING"] = "utf-8"
+
+from dotenv import load_dotenv
+load_dotenv()
+
+from langchain_core.messages import HumanMessage
+from src.agent.graph.pipeline import pipeline
+
+
+async def main():
+    print("=== Запуск пайплайна BroJS ===")
+    result = await pipeline.ainvoke(
+        {
+            "tasks": [],
+            "current_index": 0,
+            "results": [],
+            "errors": [],
+        },
+        {"configurable": {"thread_id": "pipeline-main"}},
+    )
+    print("\n=== Результат пайплайна ===")
+    for r in result.get("results", []):
+        print(f"  Task {r['task_id'][:8]}: {r['status']} (mode={r['mode']}, retries={r['retries']})")
+    for e in result.get("errors", []):
+        print(f"  ОШИБКА: {e}")
+    print("=== Готово ===")
+
+
+asyncio.run(main())