fix(company-explorer): enhance impressum scraping debug logging

- Increased logging verbosity in  to track raw input to LLM and raw LLM response.
- This helps diagnose why Impressum data extraction might be failing for specific company websites.

company-explorer/backend/services/scraping.py

@@ -155,6 +155,8 @@ class ScraperService:
                 
             raw_text = soup.get_text(separator=' ', strip=True)[:10000] # Limit context
             
+            logger.debug(f"Impressum raw text sent to LLM ({len(raw_text)} chars): {raw_text[:500]}...")
+
             # LLM Extraction
             prompt = f"""
             Extract the official company details from this German 'Impressum' text.
@@ -166,10 +168,11 @@ class ScraperService:
             """
             
             response_text = call_gemini(prompt, json_mode=True, temperature=0.1)
+            logger.debug(f"Impressum LLM raw response ({len(response_text)} chars): {response_text[:500]}...")
             return json.loads(clean_json_response(response_text))
             
         except Exception as e:
-            logger.error(f"Impressum scrape failed for {url}: {e}")
+            logger.error(f"Impressum scrape failed for {url}: {e}", exc_info=True) # Log full traceback
             return None
 
     def _parse_html(self, html_content: bytes) -> Dict[str, str]: