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/intro.dart

@@ -5,9 +5,7 @@ final class _IntroPage extends StatelessWidget {
 
   const _IntroPage(this.pages);
 
-  static const _builders = {
-    1: _buildAppSettings,
-  };
+  static const _builders = {1: _buildAppSettings};
 
   @override
   Widget build(BuildContext context) {
@@ -20,9 +18,7 @@ final class _IntroPage extends StatelessWidget {
             pages: pages_,
             onDone: (ctx) {
               Stores.setting.introVer.put(BuildData.build);
-              Navigator.of(ctx).pushReplacement(
-                MaterialPageRoute(builder: (_) => const HomePage()),
-              );
+              Navigator.of(ctx).pushReplacement(MaterialPageRoute(builder: (_) => const HomePage()));
             },
           ),
         );
@@ -52,17 +48,12 @@ final class _IntroPage extends StatelessWidget {
               RNodes.app.notify();
             }
           },
-          trailing: Text(
-            ctx.localeNativeName,
-            style: const TextStyle(fontSize: 15, color: Colors.grey),
-          ),
+          trailing: Text(ctx.localeNativeName, style: const TextStyle(fontSize: 15, color: Colors.grey)),
         ).cardx,
         ListTile(
           leading: const Icon(Icons.update),
           title: Text(libL10n.checkUpdate),
-          subtitle: isAndroid
-              ? Text(l10n.fdroidReleaseTip, style: UIs.textGrey)
-              : null,
+          subtitle: isAndroid ? Text(l10n.fdroidReleaseTip, style: UIs.textGrey) : null,
           trailing: StoreSwitch(prop: _setting.autoCheckAppUpdate),
         ).cardx,
         ListTile(
@@ -87,10 +78,7 @@ final class _IntroPage extends StatelessWidget {
 
   static List<IntroPageBuilder> get builders {
     final storedVer = _setting.introVer.fetch();
-    return _builders.entries
-        .where((e) => e.key > storedVer)
-        .map((e) => e.value)
-        .toList();
+    return _builders.entries.where((e) => e.key > storedVer).map((e) => e.value).toList();
   }
 
   static final _setting = Stores.setting;