diff --git a/.devcontainer/devcontainer.json b/.devcontainer/devcontainer.json
index 5ab9f82c9..dcc0ca600 100644
--- a/.devcontainer/devcontainer.json
+++ b/.devcontainer/devcontainer.json
@@ -49,7 +49,7 @@
                 "java.configuration.updateBuildConfiguration": "interactive",
                 "java.format.enabled": true,
                 "java.format.settings.profile": "GoogleStyle",
-                "java.format.settings.google.version": "1.26.0",
+                "java.format.settings.google.version": "1.28.0",
                 "java.format.settings.google.extra": "--aosp --skip-sorting-imports --skip-javadoc-formatting",
                 "java.saveActions.cleanup": true,
                 "java.cleanup.actions": [
@@ -79,9 +79,17 @@
                     ".venv*/",
                     ".vscode/",
                     "bin/",
+                    "app/core/bin/",
+                    "app/common/bin/",
+                    "app/proprietary/bin/",
                     "build/",
+                    "app/core/build/",
+                    "app/common/build/",
+                    "app/proprietary/build/",
                     "configs/",
+                    "app/core/configs/",
                     "customFiles/",
+                    "app/core/customFiles/",
                     "docs/",
                     "exampleYmlFiles",
                     "gradle/",
@@ -93,6 +101,9 @@
                     ".git-blame-ignore-revs",
                     ".gitattributes",
                     ".gitignore",
+                    "app/core/.gitignore",
+                    "app/common/.gitignore",
+                    "app/proprietary/.gitignore",
                     ".pre-commit-config.yaml"
                 ],
                 "java.signatureHelp.enabled": true,
diff --git a/.dockerignore b/.dockerignore
new file mode 100644
index 000000000..2407e6c0a
--- /dev/null
+++ b/.dockerignore
@@ -0,0 +1,37 @@
+# Versionierung
+.git
+.gitignore
+
+# Build- und Ausgabeordner
+build/
+# app/core/build
+target/
+out/
+docs/
+exampleYmlFiles/
+images/
+.cache/
+.github/
+.gradle/
+gradle/
+bin/
+
+# Abhängigkeiten, die nicht in den Container übertragen werden sollen
+node_modules/
+.env*
+.venv*
+env*/
+venv*/
+ENV/
+env.bak/
+venv.bak/
+
+# Logs und temporäre Dateien
+*.log
+logs/
+tmp/
+
+# Betriebssystemspezifische Dateien
+.DS_Store
+
+*.md
diff --git a/.editorconfig b/.editorconfig
index d45455a7a..3f5158dea 100644
--- a/.editorconfig
+++ b/.editorconfig
@@ -31,18 +31,12 @@ indent_size = 2
 # CSS files typically use an indent size of 2 spaces for better readability and alignment with community standards.
 indent_size = 2
 
-[*.yaml]
+[*.{yml,yaml}]
 # YAML files use an indent size of 2 spaces to maintain consistency with common YAML formatting practices.
 indent_size = 2
 insert_final_newline = false
 trim_trailing_whitespace = false
 
-[*.yml]
-# YML files follow the same conventions as YAML files, using an indent size of 2 spaces.
-indent_size = 2
-insert_final_newline = false
-trim_trailing_whitespace = false
-
 [*.json]
 # JSON files use an indent size of 2 spaces, which is the standard for JSON formatting.
 indent_size = 2
diff --git a/.github/config/.files.yaml b/.github/config/.files.yaml
index 2f4f242cb..225470ea9 100644
--- a/.github/config/.files.yaml
+++ b/.github/config/.files.yaml
@@ -26,4 +26,4 @@ project: &project
   - gradlew
   - gradlew.bat
   - launch4jConfig.xml
-  - settings.gradle
\ No newline at end of file
+  - settings.gradle
diff --git a/.github/labels.yml b/.github/labels.yml
index 9b35ccb1a..b6cd969f6 100644
--- a/.github/labels.yml
+++ b/.github/labels.yml
@@ -42,6 +42,7 @@
 - name: "Front End"
   color: "BBD2F1"
   description: "Issues or pull requests related to front-end development"
+  from_name: "frontend"
 - name: "github-actions"
   description: "Pull requests that update GitHub Actions code"
   color: "999999"
@@ -77,6 +78,7 @@
 - name: "Translation"
   color: "9FABF9"
   from_name: "translation"
+  description: "Issues or pull requests related to translation"
 - name: "upstream"
   color: "DEDEDE"
 - name: "v2"
@@ -178,3 +180,6 @@
 - name: "pr-deployed"
   color: "00FF00"
   description: "Pull request has been deployed to a test environment"
+- name: "codex"
+  color: "ededed"
+  description: "chatgpt AI generated code"
\ No newline at end of file
diff --git a/.vscode/settings.json b/.vscode/settings.json
index abc54d43e..5b8f77bbc 100644
--- a/.vscode/settings.json
+++ b/.vscode/settings.json
@@ -2,6 +2,7 @@
   "editor.wordSegmenterLocales": "",
   "editor.guides.bracketPairs": "active",
   "editor.guides.bracketPairsHorizontal": "active",
+  "editor.defaultFormatter": "EditorConfig.EditorConfig",
   "cSpell.enabled": false,
   "[feature]": {
     "editor.defaultFormatter": "alexkrechik.cucumberautocomplete"
@@ -40,7 +41,7 @@
   "java.configuration.updateBuildConfiguration": "interactive",
   "java.format.enabled": true,
   "java.format.settings.profile": "GoogleStyle",
-  "java.format.settings.google.version": "1.27.0",
+  "java.format.settings.google.version": "1.28.0",
   "java.format.settings.google.extra": "--aosp --skip-sorting-imports --skip-javadoc-formatting",
   // (DE) Aktiviert Kommentare im Java-Format.
   // (EN) Enables comments in Java formatting.
diff --git a/build.gradle b/build.gradle
index 627d7b5c1..d2fad6f61 100644
--- a/build.gradle
+++ b/build.gradle
@@ -30,6 +30,7 @@ ext {
     openSamlVersion = "4.3.2"
     commonmarkVersion = "0.25.1"
     googleJavaFormatVersion = "1.28.0"
+    junitPlatformVersion = "1.12.2"
     tempJrePath = null
 }
 
@@ -99,6 +100,7 @@ subprojects {
     apply plugin: 'com.diffplug.spotless'
     apply plugin: 'org.springframework.boot'
     apply plugin: 'io.spring.dependency-management'
+    apply plugin: 'jacoco'
 
     java {
         // 17 is lowest but we support and recommend 21
@@ -142,7 +144,7 @@ subprojects {
 
         testImplementation 'org.springframework.boot:spring-boot-starter-test'
         testRuntimeOnly 'org.mockito:mockito-inline:5.2.0'
-        testRuntimeOnly 'org.junit.platform:junit-platform-launcher:1.12.2'
+        testRuntimeOnly "org.junit.platform:junit-platform-launcher:$junitPlatformVersion"
     }
 
     tasks.withType(JavaCompile).configureEach {
@@ -156,6 +158,16 @@ subprojects {
 
     test {
         useJUnitPlatform()
+        finalizedBy jacocoTestReport
+    }
+
+    jacocoTestReport {
+        dependsOn test
+        reports {
+            xml.required.set(true)
+            csv.required.set(false)
+            html.required.set(true)
+        }
     }
 
     tasks.named("processResources") {
@@ -573,7 +585,7 @@ dependencies {
     }
 
     testImplementation 'org.springframework.boot:spring-boot-starter-test'
-    testRuntimeOnly 'org.junit.platform:junit-platform-launcher:1.12.2'
+    testRuntimeOnly "org.junit.platform:junit-platform-launcher:$junitPlatformVersion"
 }
 
 tasks.named("test") {