Rewrite: Next.js → ASP.NET Core 10 Razor Pages

Full rewrite of the portfolio site from Next.js 14 to .NET 10:

- ASP.NET Core 10 Razor Pages, no Node.js dependency
- EF Core 10 + SQLite (same schema as before — data survives upgrade)
- Cookie authentication (same single-password model)
- Resend contact form via HttpClient
- Bilingual FA/EN via locale cookie + BasePageModel
- All UI ported to Razor Pages with Tailwind CDN + custom CSS
- Vanilla JS: particles, typewriter, cursor, animations, portfolio modal
- Dockerfile: SDK 10.0-alpine → aspnet 10.0-alpine (no npm/Node needed)
- CI/CD: dropped NPM_TOKEN, ADMIN_SESSION_SECRET — pure dotnet publish

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Pages/Contact.cshtml.cs

@@ -0,0 +1,30 @@
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.AspNetCore.Mvc.RazorPages;
+using SoroushAsadi.Services;
+
+namespace SoroushAsadi.Pages;
+
+/// <summary>POST /contact — JSON endpoint for the contact form.</summary>
+[IgnoreAntiforgeryToken]
+public class ContactModel(EmailService email) : PageModel
+{
+    public record ContactBody(
+        string? Name, string? Company, string? Service,
+        string? Budget, string? Message, string? Locale);
+
+    public async Task<IActionResult> OnPostAsync([FromBody] ContactBody body)
+    {
+        if (string.IsNullOrWhiteSpace(body.Name)    || body.Name.Length < 2  ||
+            string.IsNullOrWhiteSpace(body.Service) || body.Service.Length < 2 ||
+            string.IsNullOrWhiteSpace(body.Budget)  || body.Budget.Length < 2 ||
+            string.IsNullOrWhiteSpace(body.Message) || body.Message.Length < 2)
+            return BadRequest(new { error = "Missing required fields" });
+
+        var err = await email.SendContactAsync(new EmailService.ContactForm(
+            body.Name!, body.Company ?? "", body.Service!, body.Budget!, body.Message!, body.Locale ?? "en"));
+
+        return err is null
+            ? new JsonResult(new { ok = true })
+            : StatusCode(502, new { error = err });
+    }
+}