Fix build and code structure improvements. New but essential UI functionality. CI improvements. Documentation improvements. AI module improvements.

fix-fluentassertions.ps1

@@ -0,0 +1,10 @@
+Get-ChildItem -Path "src" -Filter "*.cs" -Recurse | ForEach-Object {
+    $content = Get-Content $_.FullName -Raw -ErrorAction SilentlyContinue
+    $original = $content
+    $content = $content -replace '\.BeLessOrEqualTo\(', '.BeLessThanOrEqualTo('
+    $content = $content -replace '\.BeGreaterOrEqualTo\(', '.BeGreaterThanOrEqualTo('
+    if ($content -ne $original) {
+        Set-Content $_.FullName $content -NoNewline
+        Write-Host "Fixed: $($_.FullName)"
+    }
+}