fix ci cache calculation

Dockerfile

@@ -0,0 +1,46 @@
+FROM azul-zulu:25-jdk-alpine AS base
+RUN apk update && apk add curl jq git
+RUN curl -fsSLo /mc-server-runner.tar.gz https://github.com/itzg/mc-server-runner/releases/download/1.15.1/mc-server-runner_1.15.1_linux_amd64.tar.gz && \
+    tar -xzf /mc-server-runner.tar.gz -C / && \
+    rm /mc-server-runner.tar.gz && mv /mc-server-runner /usr/bin/mc-server-runner
+RUN curl -fsSLo /packwiz-installer.jar https://github.com/packwiz/packwiz-installer-bootstrap/releases/download/v0.0.3/packwiz-installer-bootstrap.jar && \
+    curl -fsSLo /fabric-installer.jar https://maven.fabricmc.net/net/fabricmc/fabric-installer/1.1.1/fabric-installer-1.1.1.jar
+COPY --from=hengyunabc/arthas:4.1.1-no-jdk /opt/arthas /opt/arthas
+
+FROM base AS sfcraft-builder
+COPY . /mod
+RUN  cd /mod && \
+    ./gradlew shadowJar && \
+    cp /mod/build/libs/sfcraft-*-all.jar /sfcraft.jar
+
+FROM base AS justbackup-builder
+RUN git clone https://github.com/saltedfishclub/justbackup /mod
+RUN cd /mod && \
+    ./gradlew build && \
+    rm -f /mod/build/libs/*sources.jar /mod/build/libs/*dev.jar && \
+    cp /mod/build/libs/justbackup-1.0.0.jar /justbackup.jar
+
+FROM base AS carpet-builder
+RUN git clone https://github.com/saltedfishclub/fabric-carpet /mod
+RUN cd /mod && \
+    ./gradlew build && \
+    rm -f /mod/build/libs/*sources.jar /mod/build/libs/*dev.jar && \
+    cp /mod/build/libs/*.jar /fabric-carpet.jar
+
+FROM base
+WORKDIR /deployment
+COPY server-deploy/pack /deployment/pack
+RUN MC_VERSION="$(grep '^minecraft' /deployment/pack/pack.toml | head -n1 | cut -d'"' -f2)" && \
+    LOADER_VERSION="$(grep '^fabric' /deployment/pack/pack.toml | head -n1 | cut -d'"' -f2)" && \
+    if [ -z "$MC_VERSION" ] || [ -z "$LOADER_VERSION" ]; then \
+        echo "failed to read minecraft/fabric version from pack.toml" >&2; exit 1; \
+    fi && \
+    echo "Installing Fabric server (MC=$MC_VERSION, loader=$LOADER_VERSION)" && \
+    java -jar /fabric-installer.jar server -mcversion "$MC_VERSION" -loader "$LOADER_VERSION" -downloadMinecraft
+RUN java -jar /packwiz-installer.jar -g -s server /deployment/pack/pack.toml
+COPY server-deploy/overrides /deployment
+COPY --from=sfcraft-builder /sfcraft.jar /deployment/mods/sfcraft.jar
+COPY --from=justbackup-builder /justbackup.jar /deployment/mods/justbackup.jar
+COPY --from=carpet-builder /fabric-carpet.jar /deployment/mods/fabric-carpet.jar
+VOLUME ["/deployment/config","/deployment/world","/deployment/logs","/deployment/crash-reports", "/deployment/squaremap", "/deployment/backups"]
+ENTRYPOINT ["mc-server-runner", "/deployment/run.sh"]