chore(ci): remove Codacy integration (#257)

Remove redundant Codacy static analysis integration in favor of
existing quality tooling (CodeQL for security, SonarCloud for
quality, Codecov for coverage).

Changes:
- Delete .codacy.yml configuration file
- Remove Codacy badge from README.md
- Simplify coverage workflow (remove matrix strategy)
- Remove Codacy upload step from GitHub Actions
- Update .dockerignore and AGENTS.md references

This reduces CI runtime and maintenance overhead while maintaining
comprehensive quality and security coverage.

Author: nanotaboada

.codacy.yml

@@ -2,7 +2,6 @@
 .mvn
 .vscode
 target
-.codacy.yml
 .gitignore
 azure-pipelines.yml
 CODE_OF_CONDUCT.md

.dockerignore

@@ -42,9 +42,6 @@ jobs:
         runs-on: ubuntu-latest
         permissions:
             contents: read
-        strategy:
-            matrix:
-                service: [codecov, codacy]
         steps:
             - name: Checkout repository
               uses: actions/checkout@v6.0.2
@@ -55,19 +52,11 @@ jobs:
                   name: jacoco.xml
 
             - name: Upload JaCoCo coverage report to Codecov
-              if: matrix.service == 'codecov'
               uses: codecov/codecov-action@v5.5.2
               with:
                   token: ${{ secrets.CODECOV_TOKEN }}
                   files: jacoco.xml
 
-            - name: Upload JaCoCo coverage report to Codacy
-              if: matrix.service == 'codacy'
-              uses: codacy/codacy-coverage-reporter-action@v1.3.0
-              with:
-                  project-token: ${{ secrets.CODACY_PROJECT_TOKEN }}
-                  force-coverage-parser: jacoco -r jacoco.xml
-
     container:
         needs: coverage
         runs-on: ubuntu-latest

.github/workflows/maven.yml

@@ -160,7 +160,7 @@ curl http://localhost:8080/actuator/health
 2. **Lint**: Commit message validation (commitlint)
 3. **Build**: `./mvnw clean install` (compile + test + package)
 4. **Test**: Tests already run during install, coverage reports generated
-5. **Coverage**: JaCoCo report upload to Codecov and Codacy
+5. **Coverage**: JaCoCo report upload to Codecov
 
 **Local validation** (run this before pushing):
 

AGENTS.md

@@ -2,7 +2,6 @@
 
 [![Java CI with Maven](https://github.com/nanotaboada/java.samples.spring.boot/actions/workflows/maven.yml/badge.svg)](https://github.com/nanotaboada/java.samples.spring.boot/actions/workflows/maven.yml)
 [![Quality Gate Status](https://sonarcloud.io/api/project_badges/measure?project=nanotaboada_java.samples.spring.boot&metric=alert_status)](https://sonarcloud.io/summary/new_code?id=nanotaboada_java.samples.spring.boot)
-[![Codacy Badge](https://app.codacy.com/project/badge/Grade/ea6918db332642089ef420822267931b)](https://app.codacy.com/gh/nanotaboada/java.samples.spring.boot/dashboard?utm_source=gh&utm_medium=referral&utm_content=&utm_campaign=Badge_grade)
 [![codecov](https://codecov.io/gh/nanotaboada/java.samples.spring.boot/branch/master/graph/badge.svg?token=D3FMNG0WOI)](https://codecov.io/gh/nanotaboada/java.samples.spring.boot)
 [![CodeFactor](https://www.codefactor.io/repository/github/nanotaboada/java.samples.spring.boot/badge)](https://www.codefactor.io/repository/github/nanotaboada/java.samples.spring.boot)
 [![License: MIT](https://img.shields.io/badge/License-MIT-white.svg)](https://opensource.org/licenses/MIT)