fix(iace): confirmation dialog for ungrouping + undo/regroup

- X button replaced with confirmation dialog: "Als eigenen Punkt fuehren" / "Abbrechen"
- Dialog explains the action and that it's reversible
- Ungrouped items show orange "Zurueck in Block" button
- Info bar shows count of ungrouped items + "alle zuruecksetzen" link
- No destructive action without user confirmation

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

consent-tester/services/dsi_helpers.py

@@ -81,20 +81,32 @@ async def try_dismiss_consent_banner(page: Page) -> bool:
         except Exception:
             continue
 
-    # 3) Sourcepoint (iframe-based CMP, used by Spiegel, Zeit, etc.)
+    # 3) Sourcepoint / iframe-based CMPs (Spiegel, Zeit, etc.)
+    # Search ALL iframes for consent buttons — Sourcepoint generates dynamic IDs
     try:
-        sp_div = await page.query_selector("div[id^='sp_message']")
-        if sp_div:
-            # Sourcepoint renders in an iframe inside sp_message_container
-            sp_iframe = page.frame_locator("iframe[id^='sp_message']")
-            accept_btn = sp_iframe.locator(".sp_choice_type_11").first
-            if await accept_btn.count() > 0:
-                await accept_btn.click(timeout=5000)
-                logger.info("Dismissed Sourcepoint consent banner (iframe)")
-                await page.wait_for_timeout(3000)
-                return True
+        for frame in page.frames:
+            if frame == page.main_frame:
+                continue
+            try:
+                # Sourcepoint accept button
+                sp_btn = frame.locator(".sp_choice_type_11").first
+                if await sp_btn.count() > 0 and await sp_btn.is_visible():
+                    await sp_btn.click(timeout=5000)
+                    logger.info("Dismissed Sourcepoint consent (iframe: %s)", frame.url[:80])
+                    await page.wait_for_timeout(3000)
+                    return True
+                # Generic accept text in iframe
+                for text in ["Akzeptieren", "Zustimmen", "Accept all", "Alle akzeptieren"]:
+                    btn = frame.locator(f'button:has-text("{text}")').first
+                    if await btn.count() > 0 and await btn.is_visible():
+                        await btn.click(timeout=3000)
+                        logger.info("Dismissed iframe consent via '%s'", text)
+                        await page.wait_for_timeout(3000)
+                        return True
+            except Exception:
+                continue
     except Exception as e:
-        logger.debug("Sourcepoint dismiss attempt: %s", e)
+        logger.debug("Iframe consent dismiss: %s", e)
 
     # 4) Use banner_detector CMP selectors as fallback
     try: