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/pve.dart

@@ -6,25 +6,24 @@ enum PveResType {
   qemu,
   node,
   storage,
-  sdn,
-  ;
+  sdn;
 
   static PveResType? fromString(String type) => switch (type.toLowerCase()) {
-        'lxc' => PveResType.lxc,
-        'qemu' => PveResType.qemu,
-        'node' => PveResType.node,
-        'storage' => PveResType.storage,
-        'sdn' => PveResType.sdn,
-        _ => null,
-      };
+    'lxc' => PveResType.lxc,
+    'qemu' => PveResType.qemu,
+    'node' => PveResType.node,
+    'storage' => PveResType.storage,
+    'sdn' => PveResType.sdn,
+    _ => null,
+  };
 
   String get toStr => switch (this) {
-        PveResType.node => l10n.node,
-        PveResType.qemu => 'QEMU',
-        PveResType.lxc => 'LXC',
-        PveResType.storage => l10n.storage,
-        PveResType.sdn => 'SDN',
-      };
+    PveResType.node => l10n.node,
+    PveResType.qemu => 'QEMU',
+    PveResType.lxc => 'LXC',
+    PveResType.storage => l10n.storage,
+    PveResType.sdn => 'SDN',
+  };
 }
 
 sealed class PveResIface {
@@ -334,13 +333,7 @@ final class PveSdn extends PveResIface implements PveCtrlIface {
   @override
   final String status;
 
-  PveSdn({
-    required this.id,
-    required this.type,
-    required this.sdn,
-    required this.node,
-    required this.status,
-  });
+  PveSdn({required this.id, required this.type, required this.sdn, required this.node, required this.status});
 
   static PveSdn fromJson(Map<String, dynamic> json) {
     return PveSdn(
@@ -379,8 +372,7 @@ final class PveRes {
 
   bool get onlyOneNode => nodes.length == 1;
 
-  int get length =>
-      qemus.length + lxcs.length + nodes.length + storages.length + sdns.length;
+  int get length => qemus.length + lxcs.length + nodes.length + storages.length + sdns.length;
 
   PveResIface operator [](int index) {
     if (index < nodes.length) {
@@ -432,29 +424,13 @@ final class PveRes {
     }
 
     if (old != null) {
-      qemus.reorder(
-          order: old.qemus.map((e) => e.id).toList(),
-          finder: (e, s) => e.id == s);
-      lxcs.reorder(
-          order: old.lxcs.map((e) => e.id).toList(),
-          finder: (e, s) => e.id == s);
-      nodes.reorder(
-          order: old.nodes.map((e) => e.id).toList(),
-          finder: (e, s) => e.id == s);
-      storages.reorder(
-          order: old.storages.map((e) => e.id).toList(),
-          finder: (e, s) => e.id == s);
-      sdns.reorder(
-          order: old.sdns.map((e) => e.id).toList(),
-          finder: (e, s) => e.id == s);
+      qemus.reorder(order: old.qemus.map((e) => e.id).toList(), finder: (e, s) => e.id == s);
+      lxcs.reorder(order: old.lxcs.map((e) => e.id).toList(), finder: (e, s) => e.id == s);
+      nodes.reorder(order: old.nodes.map((e) => e.id).toList(), finder: (e, s) => e.id == s);
+      storages.reorder(order: old.storages.map((e) => e.id).toList(), finder: (e, s) => e.id == s);
+      sdns.reorder(order: old.sdns.map((e) => e.id).toList(), finder: (e, s) => e.id == s);
     }
 
-    return PveRes(
-      qemus: qemus,
-      lxcs: lxcs,
-      nodes: nodes,
-      storages: storages,
-      sdns: sdns,
-    );
+    return PveRes(qemus: qemus, lxcs: lxcs, nodes: nodes, storages: storages, sdns: sdns);
   }
 }