修复了一些已知问题

backend/internal/cli/cli_test.go

@@ -0,0 +1,54 @@
+package cli
+
+import (
+	"strings"
+	"testing"
+)
+
+func TestSafeReleaseBackupComponent(t *testing.T) {
+	tests := map[string]string{
+		"v1.2.3":              "1.2.3",
+		" release/candidate ": "release_candidate",
+		"../../etc/passwd":    "etc_passwd",
+		"":                    "unknown",
+	}
+	for input, want := range tests {
+		if got := safeReleaseBackupComponent(input); got != want {
+			t.Fatalf("safeReleaseBackupComponent(%q) = %q, want %q", input, got, want)
+		}
+	}
+}
+
+func TestCopyFileToBackupRejectsUnsafeFileName(t *testing.T) {
+	unsafeNames := []string{
+		"../clicd",
+		"..\\clicd",
+		"subdir/clicd",
+		"",
+	}
+	for _, name := range unsafeNames {
+		if _, err := copyFileToBackup("missing-source", name, 0755); err == nil || !strings.Contains(err.Error(), "unsafe backup file name") {
+			t.Fatalf("copyFileToBackup(%q) error = %v, want unsafe backup file name", name, err)
+		}
+	}
+}
+
+func TestFormatSSHAccessDoesNotExposePassword(t *testing.T) {
+	out := formatSSHAccess(2222)
+	if strings.Contains(out, "/") {
+		t.Fatalf("formatSSHAccess output contains credential separator: %q", out)
+	}
+	if strings.Contains(strings.ToLower(out), "password123") {
+		t.Fatalf("formatSSHAccess output exposed password: %q", out)
+	}
+	if !strings.Contains(out, "2222 -> 22") {
+		t.Fatalf("formatSSHAccess output = %q, want SSH port mapping", out)
+	}
+}
+
+func TestFormatSSHAccessHandlesMissingPort(t *testing.T) {
+	out := formatSSHAccess(0)
+	if !strings.Contains(out, "端口未分配") {
+		t.Fatalf("formatSSHAccess output = %q, want missing port message", out)
+	}
+}