refactor: restructure sample-app into standalone Maven project

.github/actions/scan-with-sonar/action.yml

@@ -68,7 +68,7 @@ runs:
         -Dsonar.projectVersion=${{ steps.get-revision.outputs.REVISION }}
         -Dsonar.qualitygate.wait=true
         -Dsonar.java.source=17
-        -Dsonar.exclusions=**/sample-app/**
+        -Dsonar.exclusions=**/integration-tests/**
         -Dsonar.coverage.jacoco.xmlReportPaths=${{ github.workspace }}/coverage-report/target/site/jacoco-aggregate/jacoco.xml
         -Dsonar.coverage.exclusions=**/src/test/**,**/src/gen/**
         -B -ntp

.github/actions/test/action.yml

@@ -33,6 +33,6 @@ runs:
 
     - name: Test Sample App (Integration Tests)
       shell: bash
-      working-directory: sample-app/srv
+      working-directory: integration-tests/srv
       run: |
         mvn test -B -V

coverage-report/pom.xml

@@ -25,7 +25,7 @@
     <!-- Test module: only execution data is included, not classes -->
     <dependency>
       <groupId>customer</groupId>
-      <artifactId>sample-app</artifactId>
+      <artifactId>integration-tests</artifactId>
       <version>${revision}</version>
       <scope>test</scope>
     </dependency>
@@ -93,7 +93,7 @@
                   <directory>${project.basedir}/..</directory>
                   <includes>
                     <include>cds-feature-notifications/target/jacoco.exec</include>
-                    <include>sample-app/srv/target/jacoco.exec</include>
+                    <include>integration-tests/srv/target/jacoco.exec</include>
                   </includes>
                 </fileSet>
               </fileSets>

integration-tests/.cdsrc.json

@@ -0,0 +1,9 @@
+{
+  "cds": {
+    "requires": {
+      "outbox": {
+        "kind": "persistent-outbox"
+      }
+    }
+  }
+}

integration-tests/.gitignore

@@ -0,0 +1,32 @@
+**/gen/
+**/edmx/
+*.db
+*.sqlite
+*.sqlite-wal
+*.sqlite-shm
+schema*.sql
+default-env.json
+default-env.jsonc
+
+**/bin/
+**/target/
+.flattened-pom.xml
+.classpath
+.project
+.settings
+
+**/node/
+**/node_modules/
+
+**/.mta/
+*.mtar
+
+*.log*
+gc_history*
+hs_err*
+*.tgz
+*.iml
+
+.vscode
+.idea
+.reloadtrigger