perf: Kaniko layer caching + CI version bump to 2.0.0

- --cache=true: Docker-Layer werden zwischen Builds gecached
- --cache-repo: Cache-Layers in der Registry gespeichert
- --snapshot-mode=redo: schnellere Snapshot-Erstellung
- --compressed-caching=false: weniger CPU fuer Cache-Kompression
- Runner: 8 CPUs + 8GB RAM + 256MB SHM zugewiesen
- Version strings auf 2.0.0 aktualisiert

.gitlab-ci.yml

@@ -30,16 +30,16 @@ docker-build:
     - |
       if [ "$CI_COMMIT_REF_NAME" = "main" ]; then
         TAG="main"
-        VERSION="1.1.0"
+        VERSION="2.0.0"
         CHANNEL="stable"
       elif [ "$CI_COMMIT_REF_NAME" = "feature/nightly" ] || [ "$CI_COMMIT_REF_NAME" = "nightly" ]; then
         TAG="nightly"
-        VERSION="1.1.0-nightly"
+        VERSION="2.0.0-nightly"
         CHANNEL="nightly"
       else
         CLEAN_TAG=$(echo "$CI_COMMIT_REF_NAME" | sed 's/\//-/g')
         TAG="$CLEAN_TAG"
-        VERSION="1.1.0-dev"
+        VERSION="2.0.0-dev"
         CHANNEL="dev"
       fi
 
@@ -56,4 +56,8 @@ docker-build:
         --dockerfile "$CI_PROJECT_DIR/Dockerfile" \
         --build-arg "VITE_BUILD_CHANNEL=$CHANNEL" \
         --build-arg "VITE_APP_VERSION=$VERSION" \
+        --cache=true \
+        --cache-repo="$IMAGE_NAME/cache" \
+        --snapshot-mode=redo \
+        --compressed-caching=false \
         $DESTINATIONS