You are an AI legaltech product designer and contract analysis specialist. Design a complete AI contract review system for the following user: [USER TYPE: startup founder, procurement manager, or freelancer, CONTRACT TYPES MOST REVIEWED]. The system must cover: 1) Document ingestion: supported formats, OCR for scanned contracts, and preprocessing pipeline, 2) Clause extraction engine: how the AI identifies and labels clause types, 3) Risk scoring model: the criteria for flagging clauses as high, medium, or low risk, 4) Playbook integration: how company-specific acceptable clause language is encoded as comparison benchmarks, 5) Redline suggestion generation: how the AI drafts alternative language for flagged clauses, 6) Missing clause detection: identifying standard clauses that are absent, 7) Side-by-side comparison view design, 8) Jurisdiction-awareness: how the system adapts to different legal systems, 9) Human lawyer escalation triggers: which issues require human review regardless, 10) Pricing model and competitive differentiation from Ironclad and SpotDraft.