fix: simplify CI workflow to rely on pre-installed Python and pip

.gitea/workflows/ci.yml

@@ -14,13 +14,14 @@ jobs:
         run: |
           git clone --depth 1 https://7000pct.gitea.bloupla.net/7000pctAUTO/agentic-codebase-memory-manager.git .
 
-      - name: Set up Python
+      - name: Check Python
         run: |
-          apt-get update && apt-get install -y python3.11 python3-pip
+          which python3 || which python || echo "Python not found"
+          python3 --version || python --version || echo "Python version failed"
 
       - name: Install dependencies
         run: |
-          pip install -e ".[dev]"
+          pip3 install -e ".[dev]" || pip install -e ".[dev]"
 
       - name: Run linting
         run: |
@@ -42,17 +43,18 @@ jobs:
         run: |
           git clone --depth 1 https://7000pct.gitea.bloupla.net/7000pctAUTO/agentic-codebase-memory-manager.git .
 
-      - name: Set up Python
+      - name: Check Python
         run: |
-          apt-get update && apt-get install -y python3.11 python3-pip
+          which python3 || which python || echo "Python not found"
+          python3 --version || python --version || echo "Python version failed"
 
       - name: Install dependencies
         run: |
-          pip install -e .
+          pip3 install -e . || pip install -e .
 
       - name: Verify import
         run: |
-          python3 -c "import memory_manager; print(memory_manager.__version__)"
+          python3 -c "import memory_manager; print(memory_manager.__version__)" || python -c "import memory_manager; print(memory_manager.__version__)"
 
       - name: Verify CLI
         run: |