功能: 新增 SAP HANA 完整备份支持与 Backint 协议代理 (#37)

* chore: ignore web/dist directory in git repository

* 功能: 新增 SAP HANA 完整备份支持与 Backint 协议代理

- 修复 service 层校验 bug，使 SAP HANA 类型可正常创建
- 增强 hdbsql Runner：支持完整/增量/差异/日志备份、并行通道、失败重试
- 新增 Backint 协议代理（backupx backint 子命令），HANA 原生接口直连 BackupX 存储后端
- 新增本地 SQLite 目录维护 EBID↔对象键映射
- 前端新增 SAP HANA 扩展字段表单（备份类型/级别/通道数/重试次数/实例编号）
- README 中英文补充 SAP HANA 两种模式的使用说明

server/internal/backint/config_test.go

@@ -0,0 +1,74 @@
+package backint
+
+import (
+	"os"
+	"path/filepath"
+	"strings"
+	"testing"
+)
+
+func TestParseConfig(t *testing.T) {
+	dir := t.TempDir()
+	storagePath := filepath.Join(dir, "storage.json")
+	if err := os.WriteFile(storagePath, []byte(`{"basePath":"/tmp/backup"}`), 0644); err != nil {
+		t.Fatal(err)
+	}
+	input := `
+; 注释
+#STORAGE_TYPE = local_disk
+#STORAGE_CONFIG_JSON = ` + storagePath + `
+#PARALLEL_FACTOR = 4
+#COMPRESS = true
+#KEY_PREFIX = /hana/backups/
+#CATALOG_DB = ` + filepath.Join(dir, "catalog.db") + `
+`
+	cfg, err := ParseConfig(strings.NewReader(input))
+	if err != nil {
+		t.Fatalf("parse: %v", err)
+	}
+	if cfg.StorageType != "local_disk" {
+		t.Errorf("StorageType: %q", cfg.StorageType)
+	}
+	if cfg.ParallelFactor != 4 {
+		t.Errorf("ParallelFactor: %d", cfg.ParallelFactor)
+	}
+	if !cfg.Compress {
+		t.Errorf("Compress should be true")
+	}
+	if cfg.KeyPrefix != "hana/backups" {
+		t.Errorf("KeyPrefix should be trimmed: %q", cfg.KeyPrefix)
+	}
+	if cfg.StorageConfig["basePath"] != "/tmp/backup" {
+		t.Errorf("StorageConfig mismatch: %+v", cfg.StorageConfig)
+	}
+}
+
+func TestParseConfig_MissingStorageType(t *testing.T) {
+	input := `PARALLEL_FACTOR = 1`
+	if _, err := ParseConfig(strings.NewReader(input)); err == nil {
+		t.Fatal("expected error for missing STORAGE_TYPE")
+	}
+}
+
+func TestParseConfig_InlineStorageConfig(t *testing.T) {
+	input := `STORAGE_TYPE = local_disk
+STORAGE_CONFIG = {"basePath":"/x"}
+`
+	cfg, err := ParseConfig(strings.NewReader(input))
+	if err != nil {
+		t.Fatalf("parse: %v", err)
+	}
+	if cfg.StorageConfig["basePath"] != "/x" {
+		t.Errorf("inline config not parsed: %+v", cfg.StorageConfig)
+	}
+}
+
+func TestParseConfig_InvalidParallel(t *testing.T) {
+	input := `STORAGE_TYPE = local_disk
+STORAGE_CONFIG = {}
+PARALLEL_FACTOR = oops
+`
+	if _, err := ParseConfig(strings.NewReader(input)); err == nil {
+		t.Fatal("expected error for invalid PARALLEL_FACTOR")
+	}
+}