perf: remove redundant Codacy integration (#475)

- Remove Codacy configuration file (.codacy.yml)
- Remove Codacy step from CI workflow (keep Codecov only)
- Remove Codacy badge from README

CodeQL handles security scanning, SonarCloud provides quality analysis,
and Codecov tracks coverage - eliminating the need for duplicate tooling.

Author: nanotaboada

.codacy.yml

@@ -80,11 +80,8 @@ jobs:
     permissions:
       contents: read
     # Only run coverage for PRs from the same repository (not forks)
-    # This ensures secrets are available for Codecov and Codacy
+    # This ensures secrets are available for Codecov
     if: github.event_name == 'push' || github.event.pull_request.head.repo.full_name == github.repository
-    strategy:
-      matrix:
-        service: [codecov, codacy]
     steps:
       - name: Checkout repository
         uses: actions/checkout@v6.0.2
@@ -94,16 +91,8 @@ jobs:
         with:
           name: coverage.xml
 
-      - name: Upload coverage report to ${{ matrix.service }}
-        if: ${{ matrix.service == 'codecov' }}
+      - name: Upload coverage report to Codecov
         uses: codecov/codecov-action@v5.5.2
         with:
           token: ${{ secrets.CODECOV_TOKEN }}
           files: coverage.xml
-
-      - name: Upload coverage report to ${{ matrix.service }}
-        if: ${{ matrix.service == 'codacy' }}
-        uses: codacy/codacy-coverage-reporter-action@v1.3.0
-        with:
-          project-token: ${{ secrets.CODACY_PROJECT_TOKEN }}
-          coverage-reports: coverage.xml

.github/workflows/python-ci.yml

@@ -5,7 +5,6 @@
 [![Python CI](https://github.com/nanotaboada/python-samples-fastapi-restful/actions/workflows/python-ci.yml/badge.svg)](https://github.com/nanotaboada/python-samples-fastapi-restful/actions/workflows/python-ci.yml)
 [![Python CD](https://github.com/nanotaboada/python-samples-fastapi-restful/actions/workflows/python-cd.yml/badge.svg)](https://github.com/nanotaboada/python-samples-fastapi-restful/actions/workflows/python-cd.yml)
 [![Quality Gate Status](https://sonarcloud.io/api/project_badges/measure?project=nanotaboada_python-samples-fastapi-restful&metric=alert_status)](https://sonarcloud.io/summary/new_code?id=nanotaboada_python-samples-fastapi-restful)
-[![Codacy Badge](https://app.codacy.com/project/badge/Grade/8f9bab37f6f444c895a8b25d5df772fc)](https://app.codacy.com/gh/nanotaboada/python-samples-fastapi-restful/dashboard?utm_source=gh&utm_medium=referral&utm_content=&utm_campaign=Badge_grade)
 [![codecov](https://codecov.io/gh/nanotaboada/python-samples-fastapi-restful/branch/master/graph/badge.svg?token=A1WNZPRQEJ)](https://codecov.io/gh/nanotaboada/python-samples-fastapi-restful)
 [![CodeFactor](https://www.codefactor.io/repository/github/nanotaboada/python-samples-fastapi-restful/badge)](https://www.codefactor.io/repository/github/nanotaboada/python-samples-fastapi-restful)
 [![Code style: black](https://img.shields.io/badge/code%20style-black-000000.svg)](https://github.com/psf/black)