Add /api/audit endpoint providing comprehensive financial data: - Summary stats (income, expenses, net, daily average) - Budget statuses with period info - Category spending with budget correlation - Top 20 merchants by spending - Monthly trends with top categories - Per-account summaries - AI-friendly flags (over-budget, spending increases, etc.) 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>