Update Dockerfile

Dockerfile

@@ -1,14 +1,24 @@
 FROM meyay/languagetool:6.6-8
 
-EXPOSE 8081
-ENV LISTEN_PORT=8081
-
-# LanguageTool config via env: prefix langtool_ + key from server.properties
-ENV langtool_maxCheckThreads=2 \
-    langtool_maxWorkQueueSize=0 \
-    langtool_fasttextModel=/fasttext/lid.176.bin \
-    download_ngrams_for_langs=en,de
-
-# JVM sizing for 16 GB RAM
-ENV JAVA_XMS=3g \
-    JAVA_XMX=11g
+# Hugging Face Spaces routes traffic to the port defined in README.md (app_port).
+# We make LanguageTool listen on the same port.
+ENV LISTEN_PORT=7860
+
+# Full features: ngrams + fastText
+# Valid ngram langs in this image include: en, de, es, fr, nl
+ENV download_ngrams_for_langs=en,de
+
+# Store models on /data if you enabled Persistent Storage in the Space settings.
+# Without Persistent Storage, this still works but will re-download after restarts.
+ENV langtool_languageModel=/data/ngrams
+ENV langtool_fasttextModel=/data/fasttext/lid.176.bin
+
+# Performance tuning (adjust to your Space hardware)
+ENV JAVA_XMS=512m
+ENV JAVA_XMX=4096m
+ENV JAVA_GC=ShenandoahGC
+
+# Ensure folders exist (harmless if /data is later mounted as a persistent volume)
+RUN mkdir -p /data/ngrams /data/fasttext
+
+EXPOSE 7860