feat: update git credential

git/git-credential-linux.sh

@@ -1,25 +1,3 @@
 #!/bin/bash
-# Linux 凭据 helper：优先 libsecret，否则回退 cache 并提示安装
-set -euo pipefail
-
-warn_missing_libsecret() {
-    local marker="${XDG_CACHE_HOME:-$HOME/.cache}/git-credential-linux.warned"
-    [[ -f "$marker" ]] && return 0
-    mkdir -p "$(dirname "$marker")"
-    touch "$marker"
-    cat >&2 <<'EOF'
-提示: 未找到 git-credential-libsecret，当前使用内存缓存（默认 1 周过期或登出后失效）。
-
-安装持久化凭据存储:
-  Debian/Ubuntu:  sudo apt install libsecret-1-0 git-credential-libsecret
-  Fedora/RHEL:    sudo dnf install git-credential-libsecret
-  Arch Linux:     sudo pacman -S libsecret git
-EOF
-}
-
-if command -v git-credential-libsecret >/dev/null 2>&1; then
-    exec git-credential-libsecret "$@"
-fi
-
-warn_missing_libsecret
-exec git-credential-cache --timeout=604800 "$@"
+# 已合并到 git-credential.sh；保留此文件仅为兼容旧配置引用
+exec "$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)/git-credential.sh" "$@"