fix(chv-muse-r12fix-0): build.sh 建 /usr/local/share/chv 目录（认领 c3bf9fd）

纯 114b444 建不出镜像：P4 步骤把 browser-blocklist.txt 拷进
/usr/local/share/chv/，脚本里没有任何 --mkdir，virt-customize
报 target is not a directory。R12 真机靠本地-only 提交 c3bf9fd
（1 行，未推未合）绕过；本提交把该行合回分支，此后测试镜像
须从已推分支纯建出来。

chv-guest/build.sh

@@ -324,6 +324,10 @@ VC_ARGS=(-a "$OUT/disk.raw"
   --run-command 'printf "runcmd:\n - systemctl restart ssh || service ssh restart || true\n - systemctl start chv-authd || true\n - test -f /etc/chv/guest-env && chown chv:chv /etc/chv/guest-env || true\n - /usr/local/bin/chv-sync boot >>/var/log/chv-sync.log 2>&1 || true\n" > /etc/cloud/cloud.cfg.d/99-chv-sync.cfg'
   --copy-in "$SCRIPT_DIR/chv-cdp-broker.py:/usr/local/bin/"
   --copy-in "$SCRIPT_DIR/chv_browser_guard.py:/usr/local/bin/"
+  # round-12 修复轮（项 0）：c3bf9fd 认领——browser-blocklist.txt
+  # 拷进 /usr/local/share/chv/ 须先建目录，否则 virt-customize
+  # 报 target is not a directory，纯分支建不出镜像。
+  --mkdir /usr/local/share/chv
   --copy-in "$SCRIPT_DIR/browser-blocklist.txt:/usr/local/share/chv/"
   --run-command 'mv /usr/local/bin/chv-cdp-broker.py /usr/local/bin/chv-cdp-broker && chmod +x /usr/local/bin/chv-cdp-broker && chmod 0644 /usr/local/bin/chv_browser_guard.py /usr/local/share/chv/browser-blocklist.txt'
   --copy-in "$SCRIPT_DIR/chv-memory.py:/usr/local/bin/"