Adds v2.2 milestone section (Report Branding & User Directory) while
preserving the original v1.0 summary. Covers stack additions (none),
feature table stakes vs. differentiators, architecture integration
points with dependency-aware build order, top 6 critical pitfalls with
prevention strategies, suggested roadmap phase structure, open product
questions, and confidence assessment.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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