Tutorial: Vollstaendige Neupositionierung bei Fenstergroessen-Aenderung

_onResize fuehrt jetzt alle Positionierungsschritte durch:
- Spotlight-Update
- Modal-Scroll zum bubbleTarget
- Bubble-Positionierung mit dynamischer Breite
- Viewport-Clamping (oben + unten)
- Pfeil-Alignment auf Ziel-Element

src/static/js/tutorial.js

@@ -2828,13 +2828,59 @@ const Tutorial = {
         if (!this._isActive) return;
         clearTimeout(this._resizeTimer);
         var self = this;
-        this._resizeTimer = setTimeout(function() {
+        this._resizeTimer = setTimeout(async function() {
             if (!self._isActive || self._currentStep < 0) return;
             var step = self._steps[self._currentStep];
-            if (step.target && step.position !== 'center') {
+            var isModalStep = step.target && step.target.indexOf('#modal-') !== -1;
+
+            // Spotlight neu positionieren
+            if (step.target && step.position !== 'center' && !isModalStep) {
                 self._spotlightElement(step.target);
             }
+
+            // Modal-Steps: zum Feld scrollen
+            if (isModalStep && step.bubbleTarget) {
+                await self._scrollModalTo(step.bubbleTarget);
+            }
+
+            // Bubble neu positionieren
             self._positionBubble(step);
+
+            // Clamp + Arrow-Alignment (gleiche Logik wie in _showBubble)
+            requestAnimationFrame(function() {
+                var bubble = self._els.bubble;
+                if (!bubble) return;
+                var bRect = bubble.getBoundingClientRect();
+                var vHeight = window.innerHeight;
+                var currentTop = parseFloat(bubble.style.top) || 0;
+
+                // Unten geclampt
+                if (bRect.bottom > vHeight - 8) {
+                    var shift = bRect.bottom - vHeight + 16;
+                    bubble.style.top = (currentTop - shift) + 'px';
+                    var transform = bubble.style.transform || '';
+                    bubble.style.transform = transform.replace('translateY(-100%)', '');
+                }
+                // Oben geclampt
+                bRect = bubble.getBoundingClientRect();
+                if (bRect.top < 8) {
+                    currentTop = parseFloat(bubble.style.top) || 0;
+                    bubble.style.top = (currentTop + (8 - bRect.top)) + 'px';
+                    bubble.style.transform = (bubble.style.transform || '').replace('translateY(-100%)', '');
+                }
+                // Pfeil-Alignment
+                var arrowTarget = step.bubbleTarget || step.target;
+                if (arrowTarget && (bubble.className.indexOf('pos-left') !== -1 || bubble.className.indexOf('pos-right') !== -1)) {
+                    var targetEl = document.querySelector(arrowTarget);
+                    if (targetEl) {
+                        bRect = bubble.getBoundingClientRect();
+                        var tRect = targetEl.getBoundingClientRect();
+                        var arrowY = (tRect.top + tRect.height / 2) - bRect.top;
+                        arrowY = Math.max(18, Math.min(arrowY, bRect.height - 18));
+                        bubble.style.setProperty('--arrow-top', arrowY + 'px');
+                    }
+                }
+            });
         }, 150);
     },