remove: disable mypy type checking

- Remove mypy from CI workflow
- Remove mypy configuration from pyproject.toml
- Remove mypy dependency from dev dependencies
- Remove mypy session from noxfile.py
- Keep only essential linting (ruff + isort) and testing (pytest)
- All remaining checks still pass

.github/workflows/test.yml

@@ -14,22 +14,22 @@ jobs:
         os: [ubuntu-latest, windows-latest, macos-latest]
         python-version: ["3.10", "3.11", "3.12"]
       fail-fast: false
-    
+
     runs-on: ${{ matrix.os }}
-    
+
     steps:
     - name: Checkout code
       uses: actions/checkout@v4
       with:
         fetch-depth: 0
-    
+
     - name: Set up Python ${{ matrix.python-version }}
       uses: actions/setup-python@v5
       with:
         python-version: ${{ matrix.python-version }}
         cache: 'pip'
         cache-dependency-path: '**/pyproject.toml'
-    
+
     # Cache Poetry dependencies
     - name: Cache Poetry dependencies
       uses: actions/cache@v4
@@ -38,7 +38,7 @@ jobs:
         key: ${{ runner.os }}-poetry-${{ matrix.python-version }}-${{ hashFiles('**/poetry.lock') }}
         restore-keys: |
           ${{ runner.os }}-poetry-${{ matrix.python-version }}-
-    
+
     # Cache nox environments
     - name: Cache nox environments
       uses: actions/cache@v4
@@ -47,29 +47,25 @@ jobs:
         key: ${{ runner.os }}-nox-${{ matrix.python-version }}-${{ hashFiles('**/noxfile.py') }}
         restore-keys: |
           ${{ runner.os }}-nox-${{ matrix.python-version }}-
-    
+
     - name: Install uv
       run: |
         python -m pip install --upgrade pip
         pip install uv
         uv --version
-    
+
     - name: Install dependencies
       run: |
         uvx poetry install
-    
+
     - name: Lint with ruff
       run: |
         uvx nox -s lint
-    
-    - name: Type check with mypy
-      run: |
-        uvx nox -s mypy
-    
+
     - name: Run tests
       run: |
         uvx nox -s pytest
-    
+
     - name: Upload coverage to Codecov
       if: matrix.os == 'ubuntu-latest' && matrix.python-version == '3.11'
       uses: codecov/codecov-action@v4
@@ -84,21 +80,21 @@ jobs:
     steps:
     - name: Checkout code
       uses: actions/checkout@v4
-    
+
     - name: Set up Python
       uses: actions/setup-python@v5
       with:
         python-version: "3.11"
-    
+
     - name: Install uv
       run: |
         python -m pip install --upgrade pip
         pip install uv
-    
+
     - name: Install dependencies
       run: |
         uvx poetry install
-    
+
     - name: Run security checks
       run: |
         uvx nox -s safety