feat: Windows compatibility (#836)

* feat: win compatibility

* fix

* fix: uptime parse

* opt.: linux uptime accuracy

* fix: windows temperature fetching

* opt.

* opt.: powershell exec

* refactor: address PR review feedback and improve code quality

### Major Improvements:
- **Refactored Windows status parsing**: Broke down large `_getWindowsStatus` method into 13 smaller, focused helper methods for better maintainability and readability
- **Extracted system detection logic**: Created dedicated `SystemDetector` helper class to separate OS detection concerns from ServerProvider
- **Improved concurrency handling**: Implemented proper synchronization for server updates using Future-based locks to prevent race conditions

### Bug Fixes:
- **Fixed CPU percentage parsing**: Removed incorrect '*100' multiplication in BSD CPU parsing (values were already percentages)
- **Enhanced memory parsing**: Added validation and error handling to BSD memory fallback parsing with proper logging
- **Improved uptime parsing**: Added support for multiple Windows date formats and robust error handling with validation
- **Fixed division by zero**: Added safety checks in Swap.usedPercent getter

### Code Quality Enhancements:
- **Added comprehensive documentation**: Documented Windows CPU counter limitations and approach
- **Strengthened error handling**: Added detailed logging and validation throughout parsing methods
- **Improved robustness**: Enhanced BSD CPU parsing with percentage validation and warnings
- **Better separation of concerns**: Each parsing method now has single responsibility

### Files Changed:
- `lib/data/helper/system_detector.dart` (new): System detection helper
- `lib/data/model/server/cpu.dart`: Fixed percentage parsing and added validation
- `lib/data/model/server/memory.dart`: Enhanced fallback parsing and division-by-zero protection
- `lib/data/model/server/server_status_update_req.dart`: Refactored into 13 focused parsing methods
- `lib/data/provider/server.dart`: Improved synchronization and extracted system detection

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

* refactor: parse & shell fn struct

---------

Co-authored-by: Claude <noreply@anthropic.com>

lib/view/page/server/tab/utils.dart

@@ -49,7 +49,11 @@ extension _Operation on _ServerPageState {
           await context.showRoundDialog(title: libL10n.attention, child: Text(l10n.suspendTip));
           Stores.setting.showSuspendTip.put(false);
         }
-        srv.client?.execWithPwd(ShellFunc.suspend.exec(srv.spi.id), context: context, id: srv.id);
+        srv.client?.execWithPwd(
+          ShellFunc.suspend.exec(srv.spi.id, systemType: srv.status.system),
+          context: context,
+          id: srv.id,
+        );
       },
       typ: l10n.suspend,
       name: srv.spi.name,
@@ -58,7 +62,11 @@ extension _Operation on _ServerPageState {
 
   void _onTapShutdown(Server srv) {
     _askFor(
-      func: () => srv.client?.execWithPwd(ShellFunc.shutdown.exec(srv.spi.id), context: context, id: srv.id),
+      func: () => srv.client?.execWithPwd(
+        ShellFunc.shutdown.exec(srv.spi.id, systemType: srv.status.system),
+        context: context,
+        id: srv.id,
+      ),
       typ: l10n.shutdown,
       name: srv.spi.name,
     );
@@ -66,7 +74,11 @@ extension _Operation on _ServerPageState {
 
   void _onTapReboot(Server srv) {
     _askFor(
-      func: () => srv.client?.execWithPwd(ShellFunc.reboot.exec(srv.spi.id), context: context, id: srv.id),
+      func: () => srv.client?.execWithPwd(
+        ShellFunc.reboot.exec(srv.spi.id, systemType: srv.status.system),
+        context: context,
+        id: srv.id,
+      ),
       typ: l10n.reboot,
       name: srv.spi.name,
     );