Add test coverage reporting and Configure Bandit security scan

Author: TaranjyotS

.coverage

@@ -20,12 +20,12 @@ jobs:
         run: ruff check backend/app backend/tests
 
       - name: Run Bandit
-        run: bandit -r backend/app -q -s B311
+        run: bandit -c .bandit -r backend/app -q
 
       - name: Run Pytest
         env:
           PYTHONPATH: backend
-        run: pytest backend/tests
+        run: pytest backend/tests --cov=backend/app --cov-report=term
 
   frontend:
     runs-on: ubuntu-latest

.github/workflows/ci.yml

@@ -0,0 +1,2 @@
+[bandit]
+skips = B311

backend/.bandit

@@ -12,6 +12,7 @@ python-multipart==0.0.20
 numpy==2.2.1
 scikit-learn==1.6.0
 pytest==8.3.4
+pytest-cov==4.0.0
 httpx==0.28.1
 ruff==0.8.4
 bandit==1.8.0