Architectural decision log

Source: docs/decisions/*.md. 63 ratified ADRs. Each ADR is paired with the Hive synthesis that ratified it (see body ## Synthesis-ID).

ADR-0063 Email Pipeline Event Pattern
ADR-0062 Gdpr Data Subject Rights And Processor Agreements
ADR-0061 Stride Payment Flow Threat Model
ADR-0060 Pci Scope Saq A Boundary
ADR-0059 Per Merchant Storefront Api Token
ADR-0058 Brand Identity Sign Off
ADR-0057 Epic Dod Upstream To Big Blueprint
ADR-0056 Ai Hive Structured Proposal Metadata
ADR-0055 Hive Proposal Lifecycle Derived From Gh
ADR-0054 Cloud Sql Engine
ADR-0053 Subscription Promotion Substrate
ADR-0052 Cycle Scoped Discount Lock At Creation
ADR-0051 Extension Type Registry Uniform Interface
ADR-0050 Cs Tool Impersonation Session Model
ADR-0049 Order Bundling Architecture
ADR-0048 Eligibility Engine Chokepoint Extension
ADR-0047 Multi Tenant Plan Scoping Extension
ADR-0046 V02 Processor Auto Detection
ADR-0045 Spec Comprehensiveness Methodology
ADR-0044 Big Blueprint Retrofit
ADR-0043 Hive Gh Mirror Pat Rotation
ADR-0042 Adr Spec Pairing Rule
ADR-0041 Doc Surface Two Surface Model
ADR-0040 Multi Tenant Partitioning Strategy
ADR-0039 Drizzle Cve Exploitability
ADR-0038 Charge Capture Timing Strategy
ADR-0037 Stored Instruments As Canonical Charge Rail
ADR-0036 Runtime Stub Backfill Sweep
ADR-0035 Bc Payments Standard Rail Endpoint Research
ADR-0034 Subscriber Sdk Architecture
ADR-0033 Epic 6 Advanced Subscription Types Substrate
ADR-0032 Deprecation Handler And Versioning
ADR-0031 Ops Ledger Enhancements
ADR-0030 Bigeng Pattern Alignment
ADR-0029 Marketplace First Native Ready
ADR-0028 Eligibility Engine Pattern
ADR-0027 Outbox Marker And Catchup Cron
ADR-0026 Retire Api Checkout Intent
ADR-0025 Charge Sequencing Per Processor
ADR-0024 Delivery Instance
ADR-0023 B2b Checkout Ownership
ADR-0022 Marketplace Mor Scope
ADR-0021 Epic Gating Map Phase Cohorts
ADR-0020 Surface Dri Ownership
ADR-0019 Hive Substrate Evolution
ADR-0018 Admin Deployment Surface
ADR-0017 Transactional Email Spec
ADR-0016 Tax Engine Pass Through
ADR-0015 Observability Stack
ADR-0014 Subscriber Surface Auth
ADR-0013 Storefront Components Shape
ADR-0012 Merchant Admin Stack
ADR-0011 Charge Idempotency And Retry
ADR-0010 Webhook Event Egress
ADR-0009 Tenant Data Isolation
ADR-0008 Schema Migration Sequencing
ADR-0007 Uninstall Data Lifecycle
ADR-0006 I18n Strategy
ADR-0005 Three Surface Ui Architecture
ADR-0004 Access Token Storage In Stores Metadata
ADR-0003 Phase 1 Consolidation
ADR-0002 Traceability Schema
ADR-0001 Hive Workflow And Layered Methodology