fix: use --ignore-scripts for npm install to avoid prepare hook failure

- npm install --ignore-scripts prevents 'prepare' script from running during install
- The prepare script tries 'npm run build' which needs esbuild (not yet installed)
- npm rebuild node-pty compiles the native module separately
- Added fallback semicolon to apt-get purge to prevent cascade failure

Dockerfile

@@ -27,9 +27,11 @@ RUN mkdir -p /usr/share/fonts/truetype/noto && \
     fc-cache -f
 
 # ── 2. Build hermes-web-ui (Vue SPA + Node.js BFF) ──
+# Use --ignore-scripts to skip 'prepare' (which tries npm run build without esbuild)
 RUN git clone --depth 1 https://github.com/EKKOLearnAI/hermes-web-ui.git /tmp/hermes-web-ui && \
     cd /tmp/hermes-web-ui && \
-    npm install --quiet 2>&1 | tail -5 && \
+    npm install --ignore-scripts --quiet 2>&1 | tail -5 && \
+    npm rebuild node-pty 2>&1 | tail -3 && \
     npm install --save-dev esbuild --quiet 2>&1 | tail -3 && \
     npm run build 2>&1 | tail -10 && \
     mkdir -p /app/dist && \
@@ -39,7 +41,8 @@ RUN git clone --depth 1 https://github.com/EKKOLearnAI/hermes-web-ui.git /tmp/he
     echo "WebUI build complete"
 
 # ── 3. Cleanup build tools (save ~300MB) ──
-RUN apt-get purge -y --auto-remove make g++ gnupg2 && rm -rf /var/lib/apt/lists/*
+RUN apt-get purge -y --auto-remove make g++ gnupg2 2>&1 | tail -3; \
+    rm -rf /var/lib/apt/lists/*
 
 # ── 4. App config ──
 RUN mkdir -p /root/.hermes/plugins/image_gen/pollinations