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）

tools/MarkBaseInstaller.m

@@ -0,0 +1,93 @@
+#import <Cocoa/Cocoa.h>
+#import <SystemExtensions/SystemExtensions.h>
+
+@interface AppDelegate : NSObject <NSApplicationDelegate, OSSystemExtensionRequestDelegate>
+@property NSButton *installButton;
+@property NSTextField *statusLabel;
+@end
+
+@implementation AppDelegate
+
+- (void)applicationDidFinishLaunching:(NSNotification *)notification {
+    NSWindow *window = [[NSWindow alloc] initWithContentRect:NSMakeRect(0, 0, 400, 200)
+        styleMask:NSWindowStyleMaskTitled | NSWindowStyleMaskClosable
+        backing:NSBackingStoreBuffered defer:NO];
+    
+    [window setTitle:@"MarkBaseFS Installer"];
+    [window center];
+    
+    // Status label
+    self.statusLabel = [[NSTextField alloc] initWithFrame:NSMakeRect(20, 140, 360, 24)];
+    [self.statusLabel setStringValue:@"Ready to install MarkBaseFS System Extension"];
+    [self.statusLabel setBezeled:NO];
+    [self.statusLabel setDrawsBackground:NO];
+    [self.statusLabel setEditable:NO];
+    [[window contentView] addSubview:self.statusLabel];
+    
+    // Install button
+    self.installButton = [[NSButton alloc] initWithFrame:NSMakeRect(150, 80, 100, 32)];
+    [self.installButton setTitle:@"Install"];
+    [self.installButton setBezelStyle:NSBezelStyleRounded];
+    [self.installButton setTarget:self];
+    [self.installButton setAction:@selector(installExtension:)];
+    [[window contentView] addSubview:self.installButton];
+    
+    [window makeKeyAndOrderFront:nil];
+}
+
+- (void)installExtension:(id)sender {
+    [self.statusLabel setStringValue:@"Submitting installation request..."];
+    [self.installButton setEnabled:NO];
+    
+    NSString *bundleID = @"com.momentry.markbase.fskit";
+    
+    OSSystemExtensionRequest *request = [OSSystemExtensionRequest 
+        activationRequestForExtensionWithIdentifier:bundleID 
+        queue:[NSOperationQueue mainQueue]];
+    request.delegate = self;
+    
+    [[OSSystemExtensionManager sharedManager] submitRequest:request];
+    
+    NSLog(@"Installation request submitted for %@", bundleID);
+}
+
+- (void)request:(OSSystemExtensionRequest *)request didFinishWithResult:(OSSystemExtensionRequestResult)result {
+    [self.statusLabel setStringValue:@"✅ Installation succeeded!"];
+    NSLog(@"Installation succeeded: %ld", (long)result);
+    
+    // Check installed extensions
+    [[OSSystemExtensionManager sharedManager] getSystemExtensionsWithCompletionHandler:
+        ^(NSArray<OSSystemExtensionProperties *> *extensions) {
+        NSLog(@"Installed extensions: %@", extensions);
+    }];
+}
+
+- (void)request:(OSSystemExtensionRequest *)request didFailWithError:(NSError *)error {
+    [self.statusLabel setStringValue:@"❌ Installation failed"];
+    NSLog(@"Installation failed: %@ (Code: %ld)", error.localizedDescription, (long)error.code);
+    NSLog(@"Domain: %@", error.domain);
+    [self.installButton setEnabled:YES];
+}
+
+- (void)requestNeedsUserApproval:(OSSystemExtensionRequest *)request {
+    [self.statusLabel setStringValue:@"⚠️ Please approve in System Settings → Privacy & Security"];
+    NSLog(@"User approval required");
+}
+
+- (OSSystemExtensionReplacementAction)request:(OSSystemExtensionRequest *)request 
+        actionForReplacingExtension:(OSSystemExtensionProperties *)existing 
+        withExtension:(OSSystemExtensionProperties *)newExt {
+    NSLog(@"Replacing existing extension...");
+    return OSSystemExtensionReplacementActionReplace;
+}
+
+@end
+
+int main(int argc, const char *argv[]) {
+    NSApplication *app = [NSApplication sharedApplication];
+    AppDelegate *delegate = [[AppDelegate alloc] init];
+    [app setDelegate:delegate];
+    
+    [app run];
+    return 0;
+}