Architect's Playbook Patterns

Design-pattern map distilled from The Architect's Playbook (27-page visual reference). The deck maps every pattern to four problem domains (Data Extraction, Customer Support, Developer Productivity, Multi-Agent) and four constraints (Token Bloat, Latency, Compliance/Control, Accuracy). This MOC covers the deck's distinctive patterns; recurring API/config concepts (e.g. Message Batches API, Prompt caching, PreToolUse hook enforcement, Structured tool errors) live under their own domain maps and are cross-linked, not duplicated.