chore: update development configs, formatting tools, and CI enhancements (#4130)

# Description of Changes

- **What was changed**  
- Bumped `java.format.settings.google.version` to **1.28.0** in
`.devcontainer/devcontainer.json` and `.vscode/settings.json`.
- Expanded ignore patterns in `.devcontainer/devcontainer.json` to cover
`app/core/`, `app/common/`, `app/proprietary/` directories.
- Added a new top‐level `.dockerignore` to exclude build artifacts,
virtual environments, logs, OS files, and markdown docs.
- Consolidated EditorConfig YAML globs into `*.{yml,yaml}` to remove
duplication.
- Fixed missing newline in `.github/config/.files.yaml` and added label
metadata (`from_name`/`description`) in `.github/labels.yml`.
  - Updated `build.gradle`:
- Introduced `junitPlatformVersion = "1.12.2"` and replaced hard-coded
launcher versions.
- Applied the `jacoco` plugin across all subprojects and configured
`jacocoTestReport` (XML + HTML).
    - Wire-up `jacocoTestReport` to run after tests.  
- **Why the change was made**  
- Ensure all formatting tools (Google Java Format) stay in sync across
editors and containers.
- Clean up ignore rules to prevent build artifacts and sensitive files
from creeping into images and repos.
- Improve CI visibility by generating code-coverage reports with JaCoCo.
- Keep GitHub configuration files well-formed and enrich label
definitions for automation.

---

## Checklist

### General

- [x] I have read the [Contribution
Guidelines](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/CONTRIBUTING.md)
- [x] I have read the [Stirling-PDF Developer
Guide](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/devGuide/DeveloperGuide.md)
(if applicable)
- [ ] I have read the [How to add new languages to
Stirling-PDF](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/devGuide/HowToAddNewLanguage.md)
(if applicable)
- [x] I have performed a self-review of my own code
- [x] My changes generate no new warnings

### Documentation

- [ ] I have updated relevant docs on [Stirling-PDF's doc
repo](https://github.com/Stirling-Tools/Stirling-Tools.github.io/blob/main/docs/)
(if functionality has heavily changed)
- [ ] I have read the section [Add New Translation
Tags](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/devGuide/HowToAddNewLanguage.md#add-new-translation-tags)
(for new translation tags only)

### UI Changes (if applicable)

- [ ] Screenshots or videos demonstrating the UI changes are attached
(e.g., as comments or direct attachments in the PR)

### Testing (if applicable)

- [ ] I have tested my changes locally. Refer to the [Testing
Guide](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/devGuide/DeveloperGuide.md#6-testing)
for more details.

.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,

.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

.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"

.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.

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
 }
 
@@ -82,6 +83,7 @@ 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
@@ -125,7 +127,7 @@ 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 {
@@ -139,6 +141,16 @@ subprojects {
 
     test {
         useJUnitPlatform()
+        finalizedBy jacocoTestReport
+    }
+
+    jacocoTestReport {
+        dependsOn test
+        reports {
+            xml.required.set(true)
+            csv.required.set(false)
+            html.required.set(true)
+        }
     }
 
     tasks.named("processResources") {
@@ -556,7 +568,7 @@ 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") {