Revert "Release/v2.2.1 (#3269)" (#3272)

This reverts commit 9ff420e.

Author: WMC001

.github/workflows/auto-unit-test.yml

@@ -36,7 +36,7 @@ jobs:
       - name: Set up Python
         uses: actions/setup-python@v4
         with:
-          python-version: '3.11'
+          python-version: '3.10'
 
       - name: Install uv
         run: pip install --upgrade uv

.github/workflows/sdk_publish.yml

@@ -21,7 +21,7 @@ jobs:
       - name: Set up Python
         uses: actions/setup-python@v5
         with:
-          python-version: '3.11'
+          python-version: '3.10'
 
       - name: Install build dependencies
         run: |

.gitignore

@@ -61,9 +61,4 @@ data/
 sdk/benchmark/.env
 /docker/.env.bak
 
-.venv
-
-.pytest-tmp
-doc/mermaid
-
-.claude/skills/python-import-triage
+.venv