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>

.dockerignore

@@ -1,14 +1,14 @@
-node_modules
-.next
-.git
-.gitea
-data
-npm-debug.log*
-.env*.local
+bin/
+obj/
+data/
+.git/
+.gitea/
+.claude/
+.vs/
+.vscode/
+.idea/
 .env
-.DS_Store
-*.tsbuildinfo
-README.md
+.env.local
+*.user
 Dockerfile
-.dockerignore
 docker-compose.yml