Initial commit: SMF2290 studie-app for eksamen vår 2026

Komplett pensumstudie-app med:
- 120 flashcards, 49 quiz-spørsmål, 16 eksamenstrener-oppgaver
- Sammendrag av alle 12 forelesninger
- tl;dr-side for siste-minutts pugging
- Søk gjennom hele pensumet
- Dark/light mode, mobile-vennlig

Cross-platform launchere (Start.sh + Start.bat) med auto-detect
og auto-install av HTTP-server. PowerShell-fallback for Windows.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

server.ps1

@@ -0,0 +1,116 @@
+# =====================================================================
+# SMF2290 Pensum — server.ps1
+# Lett statisk HTTP-server som fallback når Python/Node ikke er installert.
+# Krever bare PowerShell 5+ (innebygd i Windows 10/11).
+# =====================================================================
+
+param(
+  [int]$Port = 8765,
+  [string]$Root = "."
+)
+
+Add-Type -AssemblyName System.Web
+
+$RootAbs = (Resolve-Path -LiteralPath $Root).Path
+$listener = New-Object System.Net.HttpListener
+$listener.Prefixes.Add("http://127.0.0.1:$Port/")
+
+try {
+  $listener.Start()
+} catch {
+  Write-Host "Klarte ikke starte server pa port ${Port}: $($_.Exception.Message)" -ForegroundColor Red
+  exit 1
+}
+
+$mimeMap = @{
+  '.html' = 'text/html; charset=utf-8'
+  '.htm'  = 'text/html; charset=utf-8'
+  '.css'  = 'text/css; charset=utf-8'
+  '.js'   = 'application/javascript; charset=utf-8'
+  '.mjs'  = 'application/javascript; charset=utf-8'
+  '.json' = 'application/json; charset=utf-8'
+  '.md'   = 'text/markdown; charset=utf-8'
+  '.txt'  = 'text/plain; charset=utf-8'
+  '.svg'  = 'image/svg+xml; charset=utf-8'
+  '.png'  = 'image/png'
+  '.jpg'  = 'image/jpeg'
+  '.jpeg' = 'image/jpeg'
+  '.gif'  = 'image/gif'
+  '.ico'  = 'image/x-icon'
+  '.webp' = 'image/webp'
+  '.woff' = 'font/woff'
+  '.woff2'= 'font/woff2'
+  '.ttf'  = 'font/ttf'
+  '.otf'  = 'font/otf'
+  '.pdf'  = 'application/pdf'
+}
+
+Write-Host ""
+Write-Host "  Server kjorer pa http://localhost:$Port"  -ForegroundColor Green
+Write-Host "  Trykk Ctrl+C for a stoppe"                 -ForegroundColor DarkGray
+Write-Host ""
+
+try {
+  while ($listener.IsListening) {
+    $context = $listener.GetContext()
+    $req = $context.Request
+    $res = $context.Response
+
+    try {
+      $path = [System.Web.HttpUtility]::UrlDecode($req.Url.LocalPath)
+      if ([string]::IsNullOrEmpty($path) -or $path -eq '/') { $path = '/index.html' }
+
+      # Strip leading slash and normalize
+      $relative = $path.TrimStart('/').Replace('/', [System.IO.Path]::DirectorySeparatorChar)
+      $filePath = Join-Path $RootAbs $relative
+
+      # Resolve to prevent directory traversal
+      try {
+        $resolved = [System.IO.Path]::GetFullPath($filePath)
+      } catch {
+        $resolved = $filePath
+      }
+
+      if (-not $resolved.StartsWith($RootAbs, [StringComparison]::OrdinalIgnoreCase)) {
+        $res.StatusCode = 403
+        $body = [System.Text.Encoding]::UTF8.GetBytes("403 Forbidden")
+        $res.OutputStream.Write($body, 0, $body.Length)
+      } elseif (Test-Path -LiteralPath $resolved -PathType Container) {
+        # Directory: try index.html
+        $idx = Join-Path $resolved 'index.html'
+        if (Test-Path -LiteralPath $idx -PathType Leaf) {
+          $bytes = [System.IO.File]::ReadAllBytes($idx)
+          $res.ContentType = 'text/html; charset=utf-8'
+          $res.ContentLength64 = $bytes.Length
+          $res.OutputStream.Write($bytes, 0, $bytes.Length)
+        } else {
+          $res.StatusCode = 404
+          $body = [System.Text.Encoding]::UTF8.GetBytes("404 Not Found")
+          $res.OutputStream.Write($body, 0, $body.Length)
+        }
+      } elseif (Test-Path -LiteralPath $resolved -PathType Leaf) {
+        $bytes = [System.IO.File]::ReadAllBytes($resolved)
+        $ext = [System.IO.Path]::GetExtension($resolved).ToLower()
+        $mime = if ($mimeMap.ContainsKey($ext)) { $mimeMap[$ext] } else { 'application/octet-stream' }
+        $res.ContentType = $mime
+        $res.ContentLength64 = $bytes.Length
+        $res.OutputStream.Write($bytes, 0, $bytes.Length)
+      } else {
+        $res.StatusCode = 404
+        $body = [System.Text.Encoding]::UTF8.GetBytes("404 Not Found: $path")
+        $res.OutputStream.Write($body, 0, $body.Length)
+      }
+    } catch {
+      try {
+        $res.StatusCode = 500
+        $body = [System.Text.Encoding]::UTF8.GetBytes("500 Internal Server Error: " + $_.Exception.Message)
+        $res.OutputStream.Write($body, 0, $body.Length)
+      } catch {}
+    } finally {
+      try { $res.Close() } catch {}
+    }
+  }
+} finally {
+  try { $listener.Stop() } catch {}
+  try { $listener.Close() } catch {}
+}