fix(consent): add Sourcepoint iframe handler + banner_detector fallback

Root cause: Spiegel DSI text was truncated because Sourcepoint consent
wall was not dismissed — dsi_helpers.py had no Sourcepoint handler.

Fixes:
1. Add Sourcepoint iframe click (frame_locator + .sp_choice_type_11)
2. Add banner_detector fallback (reuses 30 CMP selectors from scanner)
3. After banner dismiss, wait and re-navigate if page redirected
4. Add "Zustimmen und weiter" to generic text button list

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

consent-tester/services/dsi_discovery.py

@@ -249,7 +249,17 @@ async def discover_dsi_documents(
         # Step 1b: Try dismissing cookie consent banners before extraction.
         # Many German sites (dm.de, Zalando, etc.) block page content behind
         # a consent wall. Dismissing it reveals the actual DSI text.
-        await try_dismiss_consent_banner(page)
+        banner_dismissed = await try_dismiss_consent_banner(page)
+        if banner_dismissed:
+            # After consent, page may reload or reveal hidden content
+            await page.wait_for_timeout(2000)
+            # Re-navigate if the page redirected after consent
+            try:
+                if page.url != url:
+                    await goto_resilient(page, url, timeout=30000)
+                    await page.wait_for_timeout(2000)
+            except Exception:
+                pass
 
         # Step 1c: Self-extraction — if the URL itself is a DSI page,
         # extract its full text as the first document. This handles the

consent-tester/services/dsi_helpers.py

@@ -81,14 +81,43 @@ async def try_dismiss_consent_banner(page: Page) -> bool:
         except Exception:
             continue
 
-    # 3) Generic text-based button search
+    # 3) Sourcepoint (iframe-based CMP, used by Spiegel, Zeit, etc.)
+    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
+    except Exception as e:
+        logger.debug("Sourcepoint dismiss attempt: %s", e)
+
+    # 4) Use banner_detector CMP selectors as fallback
+    try:
+        from services.banner_detector import detect_banner, click_button
+        banner = await detect_banner(page)
+        if banner and banner.accept_selector:
+            clicked = await click_button(page, banner.accept_selector)
+            if clicked:
+                logger.info("Dismissed %s banner via banner_detector", banner.provider)
+                await page.wait_for_timeout(2000)
+                return True
+    except Exception as e:
+        logger.debug("Banner detector dismiss: %s", e)
+
+    # 5) Generic text-based button search
     accept_texts = [
         "Alle akzeptieren", "Alles akzeptieren", "Alle Cookies akzeptieren",
         "Accept all", "Accept All Cookies", "Akzeptieren", "Zustimmen",
-        "Einverstanden", "Ich stimme zu",
+        "Einverstanden", "Ich stimme zu", "Zustimmen und weiter",
     ]
     try:
         clicked = await page.evaluate("""(texts) => {
+            // Check main document
             for (const btn of document.querySelectorAll('button, a[role="button"]')) {
                 const t = (btn.textContent || '').trim();
                 for (const target of texts) {