README: updated to reflect current product (FlowPilot, PSA integration,
Knowledge Flywheel), fixed stale roadmap references to closed issues,
corrected Tailwind version (v3→v4), added Quick Start section, linked
all documentation.
CHANGELOG: organized by version from v0.1.0 (Jan 2026) through v0.9.0
(current), covering all major features across 9 releases.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
