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

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

src/RealCV.Application/Models/EducationEntry.cs

@@ -0,0 +1,11 @@
+namespace RealCV.Application.Models;
+
+public sealed record EducationEntry
+{
+    public required string Institution { get; init; }
+    public string? Qualification { get; init; }
+    public string? Subject { get; init; }
+    public string? Grade { get; init; }
+    public DateOnly? StartDate { get; init; }
+    public DateOnly? EndDate { get; init; }
+}