fix(ci): green builds — ANSI-safe CLI help tests, valid extras syntax, ruff import sorting

Author: SaveenaSolanki

.github/workflows/tests.yml

@@ -16,9 +16,9 @@ jobs:
           - python-version: "3.10"
             extras: ""
           - python-version: "3.11"
-            extras: "[rdkit]"
+            extras: ",rdkit"
           - python-version: "3.12"
-            extras: "[rdkit]"
+            extras: ",rdkit"
 
     steps:
       - uses: actions/checkout@v4
@@ -31,7 +31,7 @@ jobs:
       - name: Install package and dev dependencies
         run: |
           python -m pip install --upgrade pip
-          pip install -e ".[dev]${{ matrix.extras }}"
+          pip install -e ".[dev${{ matrix.extras }}]"
 
       - name: Lint with ruff
         run: ruff check src/ tests/