feat: 3 Scan-Modi (Quick/Web/Full) für Key Scanner

- Quick-Scan: nur GitHub mit Dotenv, Text, Markdown + .env
- Web-Scan: nur Serper.dev (Google Dorks)
- Full-Scan: GitHub + Serper komplett (wie bisher)
- Backend: TriggerScan(mode), ScanGitHubQuick(), mode-basierte Quellsteuerung
- Endpoint: ?mode=quick|web|full Query-Parameter
- Frontend: 3 Buttons (⚡ Quick, 🌐 Web, 🔍 Full) mit gemeinsamer Scan-Logik
- Status-Anzeige zeigt Scan-Modus im Ergebnis

wwwroot/js/pages/api-keys-page.js

@@ -318,7 +318,10 @@ registerPage('api-keys', {
 
     // ── Scanner UI ──
 
-    var scanBtn = document.getElementById('scanTriggerBtn');
+    var scanQuickBtn = document.getElementById('scanQuickBtn');
+    var scanWebBtn = document.getElementById('scanWebBtn');
+    var scanFullBtn = document.getElementById('scanFullBtn');
+    var scanBtns = [scanQuickBtn, scanWebBtn, scanFullBtn];
     var scanStatusEl = document.getElementById('scanStatus');
     var scannedList = document.getElementById('scannedKeysList');
     var scannedKeys = [];
@@ -435,14 +438,29 @@ registerPage('api-keys', {
       } catch (err) { showToast(err.message, 'error'); }
     }
 
+    var scanBtnDefaults = [
+      { btn: scanQuickBtn, icon: 'fa-bolt', label: 'Quick' },
+      { btn: scanWebBtn, icon: 'fa-globe', label: 'Web' },
+      { btn: scanFullBtn, icon: 'fa-search', label: 'Full' }
+    ];
+
+    function setScanButtonsDisabled(disabled) {
+      scanBtnDefaults.forEach(function(d) { d.btn.disabled = disabled; });
+    }
+
+    function resetScanButtons() {
+      scanBtnDefaults.forEach(function(d) {
+        d.btn.innerHTML = '<i class="fa ' + d.icon + '"></i> ' + d.label;
+        d.btn.disabled = false;
+      });
+    }
+
     async function updateScanStatus() {
       try {
         var s = await apiScanStatus();
         if (s.running) {
           scanStatusEl.textContent = '⏳ Scan läuft…';
-          scanBtn.disabled = true;
-          scanBtn.innerHTML = '<i class="fa fa-spinner fa-spin"></i> Läuft…';
-          // Polling starten wenn noch nicht aktiv
+          setScanButtonsDisabled(true);
           if (!pollTimer) {
             pollTimer = setInterval(async function() {
               var st = await apiScanStatus();
@@ -450,15 +468,13 @@ registerPage('api-keys', {
               if (!st.running) {
                 clearInterval(pollTimer);
                 pollTimer = null;
-                scanBtn.disabled = false;
-                scanBtn.innerHTML = '<i class="fa fa-search"></i> Jetzt scannen';
+                resetScanButtons();
                 scanStatusEl.textContent = st.lastResult ? '✅ ' + st.lastResult : '';
               }
             }, 3000);
           }
         } else {
-          scanBtn.disabled = false;
-          scanBtn.innerHTML = '<i class="fa fa-search"></i> Jetzt scannen';
+          resetScanButtons();
           if (s.lastResult) {
             var timeStr = s.lastRun ? new Date(s.lastRun).toLocaleString() + ' – ' : '';
             scanStatusEl.textContent = timeStr + s.lastResult;
@@ -467,15 +483,22 @@ registerPage('api-keys', {
       } catch (err) { /* ignore */ }
     }
 
-    scanBtn.addEventListener('click', async function() {
+    async function triggerScan(mode, btn) {
       try {
-        await apiTriggerScan();
-        showToast('Scan gestartet');
+        btn.innerHTML = '<i class="fa fa-spinner fa-spin"></i> Läuft…';
+        setScanButtonsDisabled(true);
+        await apiTriggerScan(mode);
+        showToast(mode.charAt(0).toUpperCase() + mode.slice(1) + '-Scan gestartet');
         await updateScanStatus();
       } catch (err) {
         showToast(err.message, 'error');
+        resetScanButtons();
       }
-    });
+    }
+
+    scanQuickBtn.addEventListener('click', function() { triggerScan('quick', scanQuickBtn); });
+    scanWebBtn.addEventListener('click', function() { triggerScan('web', scanWebBtn); });
+    scanFullBtn.addEventListener('click', function() { triggerScan('full', scanFullBtn); });
 
     await loadScannedKeys();
     await updateScanStatus();