fix: use USER 1000 (numeric), ubuntu uid clash

Dockerfile

@@ -17,9 +17,13 @@ FROM ollama/ollama:latest
 # ── System extras ─────────────────────────────────────────────
 RUN apt-get update && apt-get install -y curl && rm -rf /var/lib/apt/lists/*
 
-# ── HF Spaces: non-root user uid 1000 ─────────────────────────
-RUN useradd -m -u 1000 user || true
-USER user
+# ── HF Spaces: must run as uid 1000 ──────────────────────────
+# Ubuntu 22.04 already has uid 1000 (user: ubuntu).
+# Create /home/user dir and alias if needed, then switch by UID.
+RUN mkdir -p /home/user && \
+    (id -u 1000 > /dev/null 2>&1 || useradd -m -u 1000 user) && \
+    chown 1000:1000 /home/user
+USER 1000
 
 # ── Environment ───────────────────────────────────────────────
 ENV OLLAMA_MODELS=/home/user/.ollama/models
@@ -32,7 +36,7 @@ ENV PATH=/home/user/.local/bin:/usr/local/bin:/usr/bin:/bin:$PATH
 WORKDIR /home/user
 
 # ── Copy startup script ───────────────────────────────────────
-COPY --chown=user startup.sh /home/user/startup.sh
+COPY --chown=1000 startup.sh /home/user/startup.sh
 RUN chmod +x /home/user/startup.sh
 
 # ── Public port: Ollama API ───────────────────────────────────