Add Ollama Dockerfile and README

Dockerfile

@@ -0,0 +1,17 @@
+FROM ollama/ollama:latest
+
+RUN useradd -m -u 1000 user
+USER user
+
+ENV HOME=/home/user \
+    PATH=/home/user/.local/bin:$PATH \
+    OLLAMA_HOST=0.0.0.0
+
+WORKDIR $HOME/app
+
+# Pre-pull a lightweight model so it's available immediately
+RUN ollama serve \
+    & sleep 5 \
+    && ollama pull gemma2:2b \
+    && echo "Done. Stop Ollama..." \
+    && pkill ollama