ci: smoke-test codex cli help paths

Author: masterkain

scripts/smoke-test.sh

@@ -19,6 +19,16 @@ if [ -n "$EXPECTED_VERSION" ]; then
   printf '%s' "$VERSION_OUTPUT" | grep -F "codex-cli $EXPECTED_VERSION" >/dev/null
 fi
 
+echo "==> codex help"
+ROOT_HELP_OUTPUT=$(docker run --rm "$IMAGE" --help 2>&1)
+printf '%s\n' "$ROOT_HELP_OUTPUT"
+printf '%s' "$ROOT_HELP_OUTPUT" | grep -F "Codex CLI" >/dev/null
+
+echo "==> codex exec help"
+EXEC_HELP_OUTPUT=$(docker run --rm "$IMAGE" exec --help 2>&1)
+printf '%s\n' "$EXEC_HELP_OUTPUT"
+printf '%s' "$EXEC_HELP_OUTPUT" | grep -F "Run Codex non-interactively" >/dev/null
+
 echo "==> codex mcp-server help"
 MCP_OUTPUT=$(docker run --rm "$IMAGE" mcp-server --help 2>&1)
 printf '%s\n' "$MCP_OUTPUT"