feat: add comprehensive GitHub workflow and development tools

.github/workflows/code-quality.yml

@@ -0,0 +1,52 @@
+name: Code Quality
+
+on:
+  push:
+    branches: [ main, develop ]
+  pull_request:
+    branches: [ main ]
+
+jobs:
+  quality:
+    runs-on: ubuntu-latest
+    
+    steps:
+    - uses: actions/checkout@v4
+    
+    - name: Set up Python
+      uses: actions/setup-python@v4
+      with:
+        python-version: '3.10'
+    
+    - name: Install dependencies
+      run: |
+        python -m pip install --upgrade pip
+        pip install flake8 black isort
+        pip install -r app/requirements.txt
+    
+    - name: Lint with flake8
+      run: |
+        # Stop the build if there are Python syntax errors or undefined names
+        flake8 app --count --select=E9,F63,F7,F82 --show-source --statistics
+        # Exit-zero treats all errors as warnings
+        flake8 app --count --exit-zero --max-complexity=10 --max-line-length=88 --statistics
+    
+    - name: Check code formatting with black
+      run: |
+        black --check app
+    
+    - name: Check import sorting with isort
+      run: |
+        isort --check-only app
+    
+    - name: Check for security issues
+      run: |
+        pip install bandit
+        bandit -r app -f json -o bandit-report.json || true
+    
+    - name: Upload security report
+      uses: actions/upload-artifact@v3
+      if: always()
+      with:
+        name: bandit-security-report
+        path: bandit-report.json