Show stage-aware + consistency-adjusted profit target on dashboards

State API now returns effectiveProfitTarget = max(stage profit target,
maxDay/consistency). When a big day forces the consistency rule, this
reflects the actual amount needed to complete the stage — not just the
base profit target.

Main dashboard and account detail page now display this instead of the
raw cfg.profitTarget.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

types.ts

@@ -36,6 +36,8 @@ export interface AccountState {
     targetHit: boolean;
     /** Next trading day's target, computed server-side. null when account is dead or config is missing. */
     dailyTarget: { amount: number; path: 'first_day' | 'normal_day' | 'reduced_day' } | null;
+    /** Actual profit target to hit — max(stage profit target, consistency realTarget = maxDay/consistency). */
+    effectiveProfitTarget: number | null;
     /** Current cycle daily P&L — used for target calculations. */
     dailyPnL: { date: string; pnl: number }[];
     /** Full P&L history across all cycles — used for calendar and equity curve display. */