Merge pull request #1 from LIHUA919/agent/clean-dead-code

Clean dead code

Author: LIHUA919

.github/workflows/ci.yml

@@ -14,8 +14,17 @@ jobs:
       - uses: actions/setup-python@v5
         with:
           python-version: "3.11"
-      - run: pip install ruff
-      - run: ruff check .
+      - run: pip install ruff==0.11.13
+      - name: Lint maintained Python sources
+        run: |
+          ruff check \
+            research_agent \
+            paper_agent \
+            benchmark_collection \
+            tests \
+            main_ai_researcher.py \
+            web_ai_researcher.py \
+            global_state.py
 
   test:
     runs-on: ubuntu-latest