feat: Add pytest coverage comment to PRs

.github/workflows/test.yml

@@ -5,7 +5,6 @@ on:
     branches:
       - main
       - dev
-      - demo
       - hotfix
   pull_request:
     types:
@@ -14,12 +13,15 @@ on:
       - reopened
       - synchronize
     branches:
-      - main
       - main
       - dev
-      - demo
       - hotfix
 
+permissions:
+  contents: read
+  actions: read
+  pull-requests: write
+
 jobs:
   test:
     runs-on: ubuntu-latest
@@ -48,11 +50,31 @@ jobs:
             echo "Test files found, running tests."
             echo "skip_tests=false" >> $GITHUB_ENV
           fi
+
       - name: Run tests with coverage
         if: env.skip_tests == 'false'
         run: |
-          pytest --cov=. --cov-report=term-missing --cov-report=xml --ignore=tests/e2e-test/tests
-
+          cat > .coveragerc << 'EOF'
+          [run]
+          source = src/backend
+          omit =
+              */tests/*
+              */test_*
+          EOF
+          pytest --cov --cov-config=.coveragerc --cov-report=term-missing --cov-report=xml --junitxml=pytest.xml --ignore=tests/e2e-test/tests
+
+      - name: Pytest Coverage Comment
+        if: |
+          always() &&
+          github.event_name == 'pull_request' &&
+          github.event.pull_request.head.repo.fork == false &&
+          env.skip_tests == 'false'
+        uses: MishaKav/pytest-coverage-comment@26f986d2599c288bb62f623d29c2da98609e9cd4  # v1.6.0
+        with:
+          pytest-xml-coverage-path: coverage.xml
+          junitxml-path: pytest.xml
+          report-only-changed-files: true
+
       - name: Skip coverage report if no tests
         if: env.skip_tests == 'true'
         run: |