Analyze deliverables against the NARA CUI Registry, 32 CFR Part 2002, and DoDI 5200.48 to generate exact CUI banner/portion markings, DoD Distribution Statements (A–F), and a CUI Sanitization & Spill Response SOP. Returns a strictly validated `CuiMarkingPlanResponse` JSON object containing `cui_registry_governance_overview`, `deliverable_cui_banner_and_distribution_matrix`, `portion_marking_and_designation_indicator_blocks`, and `nist_800_88_sanitization_and_spill_response_sop` grounded in 32 CFR Part 2002 (NARA CUI Program), DoDI 5200.48 (Controlled Unclassified Information), DoDI 5230.24 (Distribution Statements), & NIST SP 800-88 Rev. 1. This is a read-only, stateless, non-destructive GovCon compliance and capture analysis call (requires X-RapidAPI-Key or X-SignalTender-Key; `deliverables_and_security_classification_guide_text` accepts 15 to 45,000 characters, while `cui_authority_framework` and `controlling_dod_office_and_ldc_context` calibrate the regulatory regime and threshold assumptions). Use this tool when executing Controlled Unclassified Information (CUI / 32 CFR 2002 & DoDI 5200.48) Handling Plan workflows; use `scan_far_dfars_clauses` instead for general FAR/DFARS clause flow-down audits, or `generate_compliance_matrix` for general Section L/M 'shall' requirement extraction.