Fix: Use AppData directory for log files to avoid permission errors

Issue: Application crashed when installed in Program Files due to
UnauthorizedAccessException when trying to write log files to the
installation directory.

Changes:
- SystemInfo.cs: Updated error logging to use LocalApplicationData/PSG-Oversight
- OsqueryService.cs: Added GetLogPath() helper method and updated all log writes
  to use user's AppData directory instead of current directory
- Added try-catch wrappers to silently handle any remaining logging failures

All log files now write to: %LOCALAPPDATA%\PSG-Oversight\

This fixes the startup crash reported in Event Viewer when running
the installed application.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

LD-SysInfo/Services/OsqueryService.cs

@@ -9,6 +9,13 @@ namespace LD_SysInfo.Services
 {
     public static class OsqueryService
     {
+        private static string GetLogPath(string filename)
+        {
+            string logDir = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData), "PSG-Oversight");
+            Directory.CreateDirectory(logDir);
+            return Path.Combine(logDir, filename);
+        }
+
         private static string GetOsqueryPath()
         {
             var baseDir = AppContext.BaseDirectory;
@@ -16,7 +23,11 @@ namespace LD_SysInfo.Services
 
             if (!File.Exists(path))
             {
-                File.AppendAllText("osquery_error.log", $"[{DateTime.Now}] ❌ osqueryi.exe not found at {path}\n");
+                try
+                {
+                    File.AppendAllText(GetLogPath("osquery_error.log"), $"[{DateTime.Now}] ❌ osqueryi.exe not found at {path}\n");
+                }
+                catch { /* Silently fail if we can't write logs */ }
                 throw new FileNotFoundException("osqueryi.exe not found", path);
             }
 
@@ -42,8 +53,12 @@ namespace LD_SysInfo.Services
             process.WaitForExit();
 
             // Optional debug logging
-            File.AppendAllText("osquery_debug.log",
-                $"[{DateTime.Now}] Ran query: {sql}\nOutput length: {output.Length}\n");
+            try
+            {
+                File.AppendAllText(GetLogPath("osquery_debug.log"),
+                    $"[{DateTime.Now}] Ran query: {sql}\nOutput length: {output.Length}\n");
+            }
+            catch { /* Silently fail if we can't write logs */ }
 
             return output;
         }
@@ -69,8 +84,12 @@ namespace LD_SysInfo.Services
             }
             catch (Exception ex)
             {
-                File.AppendAllText("osquery_error.log",
-                    $"[{DateTime.Now}] ⚠️ JSON parse failed for query '{sql}': {ex.Message}\n");
+                try
+                {
+                    File.AppendAllText(GetLogPath("osquery_error.log"),
+                        $"[{DateTime.Now}] ⚠️ JSON parse failed for query '{sql}': {ex.Message}\n");
+                }
+                catch { /* Silently fail if we can't write logs */ }
                 return new List<Dictionary<string, string>>();
             }
         }

LD-SysInfo/SystemInfo.cs

@@ -218,7 +218,17 @@ namespace LD_SysInfo
             }
             catch (Exception ex)
             {
-                File.AppendAllText("osquery_error.log", $"[{DateTime.Now}] {ex}\n");
+                try
+                {
+                    string logDir = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData), "PSG-Oversight");
+                    Directory.CreateDirectory(logDir);
+                    string logPath = Path.Combine(logDir, "osquery_error.log");
+                    File.AppendAllText(logPath, $"[{DateTime.Now}] {ex}\n");
+                }
+                catch
+                {
+                    // Silently fail if we can't write logs
+                }
             }
 
             return info;