feat: management summary for GF + batch GT test script

1. Management Summary (agent_doc_check_report.py):
   - Plain-language action items for Geschaeftsfuehrer
   - Maps technical checks to business actions ("Ihren DSB erwaehnen",
     "Beschwerderecht ergaenzen", "Loeschfristen dokumentieren")
   - Shows at top of compliance check email before detail report
   - Max 10 actions, max 3 per document

2. Batch GT Test (zeroclaw/scripts/batch_gt_test.py):
   - Runs all 10 GT websites through compliance-check API
   - Prints comparison table with L1 scores, word counts, services
   - Saves raw JSON results for analysis
   - Usage: python3 batch_gt_test.py --sites 1,6 --backend-url URL

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

backend-compliance/compliance/api/agent_compliance_check_routes.py

@@ -317,11 +317,13 @@ async def _run_compliance_check(check_id: str, req: ComplianceCheckRequest):
             else:
                 r.scenario = "import"
 
-        # Step 5: Build report
+        # Step 5: Build report with management summary
         _update(check_id, "Report wird erstellt...")
+        from .agent_doc_check_report import build_management_summary
+        summary_html = build_management_summary(results)
         report_html = build_html_report(results, None)
         profile_html = _build_profile_html(profile)
-        full_html = profile_html + report_html
+        full_html = summary_html + profile_html + report_html
 
         # Step 6: Send email
         doc_count = len([r for r in results if not r.error])