diff --git a/.gitignore b/.gitignore
index c1473f79..49025dae 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,42 +1,72 @@
-# General build artifacts
-build/
-out/
+# --- General ---
 .gradle/
 **/build/
-
-# Enviroments
-#.env
-
-# Kotlin
+**/out/
 .kotlin/
+kotlin-js-store/
 
-# IDE
+# --- Environments ---
+#.env
+config/env/.env.local
+.env.development.local
+.env.test.local
+.env.production.local
+.env.local
+
+# --- IDEs ---
+# IntelliJ
 .idea/
 *.iml
+*.ipr
+*.iws
 
-# Node
+# VS Code
+.vscode/*
+!.vscode/settings.json
+!.vscode/tasks.json
+!.vscode/launch.json
+!.vscode/extensions.json
+!.vscode/snippets
+
+# Fleet
+.fleet/
+!.fleet/receipt.json
+
+# --- Dependencies & Build ---
 node_modules/
 **/node_modules/
+package-lock.json
+yarn.lock
+pnpm-lock.yaml
 
-# OS files
+# --- OS Files ---
 .DS_Store
 Thumbs.db
+*.swp
+*~
+.nfs*
 
-# Logs
+# --- Logs ---
 _backup/logs/
 **/*.log
+*.log.gz
 
-# Kotlin/Java
+# --- Languages & Runtimes ---
+# Java/Kotlin
 *.class
+.attach_pid*
 
-# Generated diagrams
-build/diagrams/
-
-# Local runtime secrets/overrides
-config/env/.env.local
-
-# Python virtual environment
+# Python
 .venv/
 venv/
+ENV/
 *.pyc
 __pycache__/
+
+# --- Quality & Documentation ---
+build/diagrams/
+.eslintcache
+.stylelintcache
+.phpunit.result.cache
+.dataSources/
+dataSources.local.xml
diff --git a/build.gradle.kts b/build.gradle.kts
index c60bcffe..24eb009e 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -79,6 +79,18 @@ subprojects {
     // Ensure a full JDK toolchain with compiler is available (Gradle will auto-download if missing)
     javaExt.toolchain.languageVersion.set(JavaLanguageVersion.of(25))
 
+    // Set Kotlin Toolchain for projects using Kotlin
+    plugins.withId("org.jetbrains.kotlin.jvm") {
+      extensions.configure<org.jetbrains.kotlin.gradle.dsl.KotlinJvmProjectExtension> {
+        jvmToolchain(25)
+      }
+    }
+    plugins.withId("org.jetbrains.kotlin.multiplatform") {
+      extensions.configure<org.jetbrains.kotlin.gradle.dsl.KotlinMultiplatformExtension> {
+        jvmToolchain(25)
+      }
+    }
+
     tasks.register<Test>("perfTest") {
       description = "Runs tests tagged with 'perf'"
       group = "verification"
@@ -111,9 +123,20 @@ subprojects {
     environment("PUPPETEER_EXECUTABLE_PATH", "/usr/bin/chromium")
   }
 
-  tasks.withType<KotlinCompile> {
+  // Suche diesen Block am Ende von subprojects und ersetze ihn:
+  tasks.withType<KotlinCompile>().configureEach {
     compilerOptions {
+      // Dein bestehender Argument-Eintrag
       freeCompilerArgs.add("-Xannotation-default-target=param-property")
+
+      // WICHTIG: Parameter-Namen für Spring Boot & Reflection erhalten
+      javaParameters.set(true)
+
+      // OPTIONAL: Ermöglicht die Nutzung von Context Receivers (hilfreich in modernen Architekturen)
+      freeCompilerArgs.add("-Xcontext-receivers")
+
+      // Explizite Setzung des JVM Targets auf 25 (überschreibt IDE-Fehleinstellungen)
+      jvmTarget.set(org.jetbrains.kotlin.gradle.dsl.JvmTarget.JVM_25)
     }
   }
 
@@ -325,7 +348,8 @@ tasks.register("checkBundleBudget") {
       }
 
       // Collect JS files under distributions (avoid .map and .txt)
-      val jsFiles = distDir.walkTopDown().filter { it.isFile && it.extension == "js" && !it.name.endsWith(".map") }.toList()
+      val jsFiles =
+        distDir.walkTopDown().filter { it.isFile && it.extension == "js" && !it.name.endsWith(".map") }.toList()
       if (jsFiles.isEmpty()) {
         report.appendLine("- ${shell.path}: no JS artifacts found in ${distDir.path}")
         return@forEach