chore: entferne nicht mehr genutzte Backup-Dateien, IDE-Konfigurationen und Kotlin-Build-Skripte

.gitignore

@@ -0,0 +1,85 @@
+# Gradle
+.gradle/
+build/
+!gradle/wrapper/gradle-wrapper.jar
+.gradletasknamecache
+
+# Kotlin
+*.class
+*.jar
+*.kotlin_module
+.kotlin/
+kotlin-js-store/
+
+# IntelliJ IDEA
+.idea/workspace.xml
+.idea/tasks.xml
+.idea/usage.statistics.xml
+.idea/dictionaries
+.idea/shelf
+.idea/dataSources/
+.idea/dataSources.local.xml
+.idea/httpRequests/
+.idea/codestream.xml
+.idea/sonarlint/
+*.iml
+*.ipr
+*.iws
+out/
+
+# Node.js / npm / React
+node_modules/
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+.pnp.*
+.yarn/
+dist/
+.cache/
+.parcel-cache/
+.next/
+.nuxt/
+.vuepress/dist
+*.tsbuildinfo
+
+# Docker
+.env
+.env.local
+.env.*.local
+docker-compose.override.yaml
+
+# macOS
+.DS_Store
+.AppleDouble
+.LSOverride
+._*
+
+# Windows
+Thumbs.db
+Thumbs.db:encryptable
+ehthumbs.db
+Desktop.ini
+
+# Linux
+*~
+.directory
+.Trash-*
+
+# Logs
+*.log
+logs/
+
+# Temporary files
+*.tmp
+*.temp
+*.swp
+*.swo
+*~
+
+# SQLDelight
+*.db
+*.db-shm
+*.db-wal
+
+# Local configuration
+local.properties