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/server/sensors.dart

@@ -15,12 +15,12 @@ final class SensorAdaptor {
   static const isa = SensorAdaptor(isaRaw);
 
   static SensorAdaptor parse(String raw) => switch (raw) {
-        acpiRaw => acpi,
-        pciRaw => pci,
-        virtualRaw => virtual,
-        isaRaw => isa,
-        _ => SensorAdaptor(raw),
-      };
+    acpiRaw => acpi,
+    pciRaw => pci,
+    virtualRaw => virtual,
+    isaRaw => isa,
+    _ => SensorAdaptor(raw),
+  };
 }
 
 final class SensorItem {
@@ -28,11 +28,7 @@ final class SensorItem {
   final SensorAdaptor adapter;
   final Map<String, String> details;
 
-  const SensorItem({
-    required this.device,
-    required this.adapter,
-    required this.details,
-  });
+  const SensorItem({required this.device, required this.adapter, required this.details});
 
   String get toMarkdown {
     final sb = StringBuffer();
@@ -72,8 +68,7 @@ final class SensorItem {
       final len = sensorLines.length;
       if (len < 3) continue;
       final device = sensorLines.first;
-      final adapter =
-          SensorAdaptor.parse(sensorLines[1].split(':').last.trim());
+      final adapter = SensorAdaptor.parse(sensorLines[1].split(':').last.trim());
 
       final details = <String, String>{};
       for (var idx = 2; idx < len; idx++) {
@@ -84,11 +79,7 @@ final class SensorItem {
         final value = detailParts[1].trim();
         details[key] = value;
       }
-      sensors.add(SensorItem(
-        device: device,
-        adapter: adapter,
-        details: details,
-      ));
+      sensors.add(SensorItem(device: device, adapter: adapter, details: details));
     }
 
     return sensors;