feat: solution for 'Повторный экзамен: FAQ-бот — ChromaDB + один MCP-tool'

main.py

@@ -0,0 +1,41 @@
+import argparse
+import sys
+from src.vector_store_utils import load_faq_to_chroma
+from src.langchain_agent import create_agent
+
+def run_preset_questions(preset: str, agent):
+    questions = [q.strip() for q in preset.split(",") if q.strip()]
+    for q in questions:
+        print(f"\nQuestion: {q}")
+        answer = agent.run(q)
+        print(f"Answer:\n{answer}")
+
+def interactive_mode(agent):
+    print("Enter your question (type 'exit' to quit):")
+    while True:
+        q = input("> ")
+        if q.lower() in ("exit", "quit"):
+            break
+        answer = agent.run(q)
+        print(f"Answer:\n{answer}")
+
+def main():
+    parser = argparse.ArgumentParser(description="FAQ Bot CLI")
+    parser.add_argument("--preset", type=str, help="Comma‑separated preset questions")
+    parser.add_argument("--interactive", action="store_true", help="Interactive mode")
+    args = parser.parse_args()
+
+    # Load vector store
+    collection = load_faq_to_chroma()
+    agent = create_agent(collection)
+
+    if args.preset:
+        run_preset_questions(args.preset, agent)
+    elif args.interactive:
+        interactive_mode(agent)
+    else:
+        print("No mode selected. Use --preset or --interactive.")
+        sys.exit(1)
+
+if __name__ == "__main__":
+    main()