chore(Dockerfile): 改為純安裝 Codex CLI

Dockerfile

@@ -1,8 +1,6 @@
-# syntax=docker/dockerfile:1.4
 FROM ubuntu:latest
 
 ENV DEBIAN_FRONTEND=noninteractive
-ARG EXPECTED_CODEX_EMAIL=temp@gmail.com
 
 RUN apt-get update \
     && apt-get install -y --no-install-recommends \
@@ -15,17 +13,4 @@ RUN apt-get update \
 
 WORKDIR /workspace
 
-COPY app/codex_account.js /usr/local/bin/codex-account
-COPY app/verify_codex_email.sh /usr/local/bin/verify-codex-email
-RUN chmod +x /usr/local/bin/codex-account /usr/local/bin/verify-codex-email
-
-ENV EXPECTED_CODEX_EMAIL=${EXPECTED_CODEX_EMAIL}
-
-RUN --mount=type=secret,id=codex_auth,required=true \
-    install -d -m 700 /root/.codex \
-    && cp /run/secrets/codex_auth /root/.codex/auth.json \
-    && chmod 600 /root/.codex/auth.json \
-    && EXPECTED_CODEX_EMAIL="$EXPECTED_CODEX_EMAIL" verify-codex-email \
-    && rm -f /root/.codex/auth.json
-
-CMD ["codex-account"]
+CMD ["codex", "--version"]