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/data/model/pkg/manager.dart

@@ -62,8 +62,7 @@ enum PkgManager {
       case PkgManager.yum:
         list = list.sublist(2);
         list.removeWhere((element) => element.isEmpty);
-        final endLine = list.lastIndexWhere(
-            (element) => element.contains('Obsoleting Packages'));
+        final endLine = list.lastIndexWhere((element) => element.contains('Obsoleting Packages'));
         if (endLine != -1 && list.isNotEmpty) {
           list = list.sublist(0, endLine);
         }
@@ -71,8 +70,7 @@ enum PkgManager {
       case PkgManager.apt:
         // avoid other outputs
         // such as: [Could not chdir to home directory /home/test: No such file or directory, , WARNING: apt does not have a stable CLI interface. Use with caution in scripts., , Listing...]
-        final idx =
-            list.indexWhere((element) => element.contains('[upgradable from:'));
+        final idx = list.indexWhere((element) => element.contains('[upgradable from:'));
         if (idx == -1) {
           return [];
         }