fix: align OpenCode runtime with node base image

Author: conscientiousness

Dockerfile.opencode

@@ -21,15 +21,14 @@ RUN curl -fsSL https://cli.github.com/packages/githubcli-archive-keyring.gpg \
     apt-get update && apt-get install -y --no-install-recommends gh && \
     rm -rf /var/lib/apt/lists/*
 
-RUN useradd -m -s /bin/bash -u 1000 agent
-RUN mkdir -p /home/agent/.local/share/opencode && \
-    chown -R agent:agent /home/agent
-ENV HOME=/home/agent
-WORKDIR /home/agent
+RUN mkdir -p /home/node/.local/share/opencode && \
+    chown -R node:node /home/node
+ENV HOME=/home/node
+WORKDIR /home/node
 
-COPY --from=builder --chown=agent:agent /build/target/release/openab /usr/local/bin/openab
+COPY --from=builder --chown=node:node /build/target/release/openab /usr/local/bin/openab
 
-USER agent
+USER node
 HEALTHCHECK --interval=30s --timeout=5s --retries=3 \
   CMD pgrep -x openab || exit 1
 ENTRYPOINT ["openab"]

charts/openab/templates/_helpers.tpl

@@ -81,7 +81,7 @@ Resolve agent preset → args
 Resolve agent preset → home directory
 */}}
 {{- define "openab.agent.home" -}}
-{{- if and .Values.agent.preset (or (eq .Values.agent.preset "codex") (eq .Values.agent.preset "claude") (eq .Values.agent.preset "gemini")) }}/home/node
+{{- if and .Values.agent.preset (or (eq .Values.agent.preset "codex") (eq .Values.agent.preset "claude") (eq .Values.agent.preset "gemini") (eq .Values.agent.preset "opencode")) }}/home/node
 {{- else }}/home/agent
 {{- end }}
 {{- end }}