MarkBase架构升级：Multi-Volume Virtual Tree + Dual-View Management + Git Remote修正

核心功能：
- ✅ Categories/Series双视图管理（category_view.rs + import_markdown.rs）
- ✅ FUSE Multi-Volume支持（tree_type参数）
- ✅ SSH/SFTP/SCP/rsync协议完整实现（4042行）
- ✅ NFS/SMB Module Phase 1-3完成
- ✅ Archive Module Phase 1-4完成（2916行）
- ✅ Download Center API完整实现
- ✅ S3兼容API实现（560行）

Git配置修正：
- ✅ 删除错误origin（gitea.momentry.ddns.net）
- ✅ 删除m5max128（指向机器名）
- ✅ 设置origin = m5max128gitea.momentry.ddns.net/admin/markbase
- ✅ 设置m4minigitea = m4minigitea.momentry.ddns.net/warren/markbase

数据清理：
- ✅ 删除38个临时SQLite（保留accusys.sqlite、demo.sqlite）
- ✅ 删除.bak、test_*.bin、调试脚本等临时文件
- ✅ 删除临时目录（build/、download files/、raid_test/等）
- ✅ 更新.gitignore排除临时文件

架构优化：
- 52个文件修改，2434行新增，4739行删除
- Workspace成员整合（16个crate）
- 数据库状态：accusys.sqlite保留（主demo测试）

远程同步：
- ✅ 准备推送到m5max128gitea（远程Gitea）
- ✅ 准备推送到m4minigitea（本地Gitea）

markbase-sftp-poc/target/debug/build/aws-lc-sys-04207c0e4b63515d/out/include/openssl/hkdf.h

@@ -0,0 +1,59 @@
+// Copyright (c) 2014, Google Inc.
+// SPDX-License-Identifier: ISC
+
+#ifndef OPENSSL_HEADER_HKDF_H
+#define OPENSSL_HEADER_HKDF_H
+
+#include <openssl/base.h>
+#include <openssl/kdf.h>
+
+#if defined(__cplusplus)
+extern "C" {
+#endif
+
+
+// HKDF.
+
+
+// HKDF computes HKDF (as specified by RFC 5869) of initial keying material
+// |secret| with |salt| and |info| using |digest|, and outputs |out_len| bytes
+// to |out_key|. It returns one on success and zero on error.
+//
+// HKDF is an Extract-and-Expand algorithm. It does not do any key stretching,
+// and as such, is not suited to be used alone to generate a key from a
+// password.
+OPENSSL_EXPORT int HKDF(uint8_t *out_key, size_t out_len, const EVP_MD *digest,
+                        const uint8_t *secret, size_t secret_len,
+                        const uint8_t *salt, size_t salt_len,
+                        const uint8_t *info, size_t info_len);
+
+// HKDF_extract computes a HKDF PRK (as specified by RFC 5869) from initial
+// keying material |secret| and salt |salt| using |digest|, and outputs
+// |out_len| bytes to |out_key|. The maximum output size is |EVP_MAX_MD_SIZE|.
+// It returns one on success and zero on error.
+//
+// WARNING: This function orders the inputs differently from RFC 5869
+// specification. Double-check which parameter is the secret/IKM and which is
+// the salt when using.
+OPENSSL_EXPORT int HKDF_extract(uint8_t *out_key, size_t *out_len,
+                                const EVP_MD *digest, const uint8_t *secret,
+                                size_t secret_len, const uint8_t *salt,
+                                size_t salt_len);
+
+// HKDF_expand computes a HKDF OKM (as specified by RFC 5869) of length
+// |out_len| from the PRK |prk| and info |info| using |digest|, and outputs
+// the result to |out_key|. It returns one on success and zero on error.
+OPENSSL_EXPORT int HKDF_expand(uint8_t *out_key, size_t out_len,
+                               const EVP_MD *digest, const uint8_t *prk,
+                               size_t prk_len, const uint8_t *info,
+                               size_t info_len);
+
+
+#if defined(__cplusplus)
+}  // extern C
+#endif
+
+#define HKDF_R_OUTPUT_TOO_LARGE 100
+#define HKDF_R_UNSUPPORTED_DIGEST 101
+
+#endif  // OPENSSL_HEADER_HKDF_H