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/hive/hive_adapters.g.dart

@@ -111,13 +111,14 @@ class SpiAdapter extends TypeAdapter<Spi> {
       wolCfg: fields[11] as WakeOnLanCfg?,
       envs: (fields[12] as Map?)?.cast<String, String>(),
       id: fields[13] == null ? '' : fields[13] as String,
+      customSystemType: fields[14] as SystemType?,
     );
   }
 
   @override
   void write(BinaryWriter writer, Spi obj) {
     writer
-      ..writeByte(14)
+      ..writeByte(15)
       ..writeByte(0)
       ..write(obj.name)
       ..writeByte(1)
@@ -145,7 +146,9 @@ class SpiAdapter extends TypeAdapter<Spi> {
       ..writeByte(12)
       ..write(obj.envs)
       ..writeByte(13)
-      ..write(obj.id);
+      ..write(obj.id)
+      ..writeByte(14)
+      ..write(obj.customSystemType);
   }
 
   @override
@@ -557,3 +560,44 @@ class WakeOnLanCfgAdapter extends TypeAdapter<WakeOnLanCfg> {
           runtimeType == other.runtimeType &&
           typeId == other.typeId;
 }
+
+class SystemTypeAdapter extends TypeAdapter<SystemType> {
+  @override
+  final typeId = 9;
+
+  @override
+  SystemType read(BinaryReader reader) {
+    switch (reader.readByte()) {
+      case 0:
+        return SystemType.linux;
+      case 1:
+        return SystemType.bsd;
+      case 2:
+        return SystemType.windows;
+      default:
+        return SystemType.linux;
+    }
+  }
+
+  @override
+  void write(BinaryWriter writer, SystemType obj) {
+    switch (obj) {
+      case SystemType.linux:
+        writer.writeByte(0);
+      case SystemType.bsd:
+        writer.writeByte(1);
+      case SystemType.windows:
+        writer.writeByte(2);
+    }
+  }
+
+  @override
+  int get hashCode => typeId.hashCode;
+
+  @override
+  bool operator ==(Object other) =>
+      identical(this, other) ||
+      other is SystemTypeAdapter &&
+          runtimeType == other.runtimeType &&
+          typeId == other.typeId;
+}