Add CI and SonarQube workflows for automated testing and code quality analysis

Co-authored-by: Copilot <copilot@github.com>

sonar-project.properties

@@ -0,0 +1,26 @@
+sonar.projectKey=epage-go
+sonar.projectName=epage-go
+sonar.projectVersion=1.0.0
+
+# Source code location
+sonar.sources=src
+sonar.sourceEncoding=UTF-8
+
+# Exclude test files from analysis
+sonar.exclusions=**/*_test.go
+
+# Test configuration
+sonar.tests=src
+sonar.test.inclusions=**/*_test.go
+
+# Coverage reports
+sonar.go.coverage.reportPaths=coverage.out
+
+# Code coverage exclusions
+sonar.coverage.exclusions=**/*_test.go
+
+# Quality gates
+sonar.qualitygate.wait=true
+
+# Language
+sonar.language=go