refactor: Rename TrueCV to RealCV throughout codebase

- Renamed all directories (TrueCV.* -> RealCV.*)
- Renamed all project files (.csproj)
- Renamed solution file (TrueCV.sln -> RealCV.sln)
- Updated all namespaces in C# and Razor files
- Updated project references
- Updated CSS variable names

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

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

src/RealCV.Application/Interfaces/IAuditService.cs

@@ -0,0 +1,18 @@
+namespace RealCV.Application.Interfaces;
+
+public interface IAuditService
+{
+    Task LogAsync(Guid userId, string action, string? entityType = null, Guid? entityId = null, string? details = null, string? ipAddress = null);
+}
+
+public static class AuditActions
+{
+    public const string CVUploaded = "CV_UPLOADED";
+    public const string CVProcessed = "CV_PROCESSED";
+    public const string CVDeleted = "CV_DELETED";
+    public const string ReportViewed = "REPORT_VIEWED";
+    public const string ReportExported = "REPORT_EXPORTED";
+    public const string UserLogin = "USER_LOGIN";
+    public const string UserLogout = "USER_LOGOUT";
+    public const string UserRegistered = "USER_REGISTERED";
+}