- Make ProgressDashboard session-aware with single primary CTA
- No session: "Start Practice →" (blue)
- Active session: "Resume Practice →" (green) with progress count
- Single "Start over" link replaces redundant Abandon/Regenerate buttons
- Add skill mismatch warning inline in level card
- Add masteredSkillIds to session_plans for mismatch detection
- Fix getActiveSessionPlan to check completedAt IS NULL (fixes loop bug)
- Remove separate Active Session Card from dashboard (now integrated)
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Co-Authored-By: Claude <noreply@anthropic.com>
Thomas Hallock