refactor(go/ucca): split license_policy, models, pdf_export, escalation_store, obligations_registry

Split 5 oversized files (501-583 LOC each) into focused units all under 500 LOC:
- license_policy.go → +_types.go (engine logic / type definitions)
- models.go → +_intake.go, +_assessment.go (enums+domains / intake structs / output+DB types)
- pdf_export.go → +_markdown.go (PDF export / markdown export)
- escalation_store.go → +_dsb.go (main escalation ops / DSB pool ops)
- obligations_registry.go → +_grouping.go (registry core / grouping methods)

All files remain in package ucca. Zero behavior changes.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

ai-compliance-sdk/internal/ucca/pdf_export.go

@@ -408,103 +408,3 @@ func truncateString(s string, maxLen int) string {
 	}
 	return s[:maxLen-3] + "..."
 }
-
-// ExportMarkdown exports the overview as Markdown (for compatibility)
-func (e *PDFExporter) ExportMarkdown(overview *ManagementObligationsOverview) (*ExportMemoResponse, error) {
-	var buf bytes.Buffer
-
-	// Title
-	buf.WriteString(fmt.Sprintf("# Regulatorische Pflichten-Uebersicht\n\n"))
-	if overview.OrganizationName != "" {
-		buf.WriteString(fmt.Sprintf("**Organisation:** %s\n\n", overview.OrganizationName))
-	}
-	buf.WriteString(fmt.Sprintf("**Stand:** %s\n\n", overview.AssessmentDate.Format("02.01.2006")))
-
-	// Executive Summary
-	buf.WriteString("## Executive Summary\n\n")
-	summary := overview.ExecutiveSummary
-	buf.WriteString(fmt.Sprintf("| Metrik | Wert |\n"))
-	buf.WriteString(fmt.Sprintf("|--------|------|\n"))
-	buf.WriteString(fmt.Sprintf("| Anwendbare Regulierungen | %d |\n", summary.TotalRegulations))
-	buf.WriteString(fmt.Sprintf("| Gesamtzahl Pflichten | %d |\n", summary.TotalObligations))
-	buf.WriteString(fmt.Sprintf("| Kritische Pflichten | %d |\n", summary.CriticalObligations))
-	buf.WriteString(fmt.Sprintf("| Kommende Fristen (30 Tage) | %d |\n", summary.UpcomingDeadlines))
-	buf.WriteString(fmt.Sprintf("| Compliance Score | %d%% |\n\n", summary.ComplianceScore))
-
-	// Key Risks
-	if len(summary.KeyRisks) > 0 {
-		buf.WriteString("### Wesentliche Risiken\n\n")
-		for _, risk := range summary.KeyRisks {
-			buf.WriteString(fmt.Sprintf("- %s\n", risk))
-		}
-		buf.WriteString("\n")
-	}
-
-	// Recommended Actions
-	if len(summary.RecommendedActions) > 0 {
-		buf.WriteString("### Empfohlene Massnahmen\n\n")
-		for _, action := range summary.RecommendedActions {
-			buf.WriteString(fmt.Sprintf("- %s\n", action))
-		}
-		buf.WriteString("\n")
-	}
-
-	// Applicable Regulations
-	buf.WriteString("## Anwendbare Regulierungen\n\n")
-	buf.WriteString("| Regulierung | Klassifizierung | Pflichten | Grund |\n")
-	buf.WriteString("|-------------|-----------------|-----------|-------|\n")
-	for _, reg := range overview.ApplicableRegulations {
-		buf.WriteString(fmt.Sprintf("| %s | %s | %d | %s |\n", reg.Name, reg.Classification, reg.ObligationCount, reg.Reason))
-	}
-	buf.WriteString("\n")
-
-	// Sanctions Summary
-	buf.WriteString("## Sanktionsrisiken\n\n")
-	sanctions := overview.SanctionsSummary
-	if sanctions.MaxFinancialRisk != "" {
-		buf.WriteString(fmt.Sprintf("- **Max. Finanzrisiko:** %s\n", sanctions.MaxFinancialRisk))
-	}
-	buf.WriteString(fmt.Sprintf("- **Persoenliche Haftung:** %v\n", sanctions.PersonalLiabilityRisk))
-	buf.WriteString(fmt.Sprintf("- **Strafrechtliche Konsequenzen:** %v\n\n", sanctions.CriminalLiabilityRisk))
-	if sanctions.Summary != "" {
-		buf.WriteString(fmt.Sprintf("*%s*\n\n", sanctions.Summary))
-	}
-
-	// Obligations
-	buf.WriteString("## Pflichten-Uebersicht\n\n")
-	for _, obl := range overview.Obligations {
-		buf.WriteString(fmt.Sprintf("### %s - %s\n\n", obl.ID, obl.Title))
-		buf.WriteString(fmt.Sprintf("**Prioritaet:** %s | **Verantwortlich:** %s\n\n", obl.Priority, obl.Responsible))
-		if len(obl.LegalBasis) > 0 {
-			buf.WriteString("**Rechtsgrundlage:** ")
-			for i, lb := range obl.LegalBasis {
-				if i > 0 {
-					buf.WriteString(", ")
-				}
-				buf.WriteString(lb.Norm)
-			}
-			buf.WriteString("\n\n")
-		}
-		buf.WriteString(fmt.Sprintf("%s\n\n", obl.Description))
-	}
-
-	// Incident Deadlines
-	if len(overview.IncidentDeadlines) > 0 {
-		buf.WriteString("## Meldepflichten bei Vorfaellen\n\n")
-		for _, dl := range overview.IncidentDeadlines {
-			buf.WriteString(fmt.Sprintf("- **%s:** %s an %s\n", dl.Phase, dl.Deadline, dl.Recipient))
-		}
-		buf.WriteString("\n")
-	}
-
-	// Footer
-	buf.WriteString("---\n\n")
-	buf.WriteString(fmt.Sprintf("*Generiert am %s mit BreakPilot AI Compliance SDK*\n", time.Now().Format("02.01.2006 15:04")))
-
-	return &ExportMemoResponse{
-		Content:     buf.String(),
-		ContentType: "text/markdown",
-		Filename:    fmt.Sprintf("pflichten-uebersicht-%s.md", time.Now().Format("2006-01-02")),
-		GeneratedAt: time.Now(),
-	}, nil
-}