Add per-stage withdrawal targets with consistency and min trading days

- Add withdrawal stage system: each stage defines profit target, consistency,
  and min trading days for post-withdrawal challenge cycles
- Target Same Equity mode accounts for withdrawn amounts when computing
  effective profit target (profitTarget - remainingProfit)
- Store fund transaction timestamps for time-aware cycle filtering
  (withdrawals before 9 AM CT include that day in new cycle)
- Expose full P&L history (fullDailyPnL) for calendar/equity curve display
  across all cycles, with DB fallback for pre-restart data
- Show stage number (#1, #2, etc.) on calendar cells
- Hide consistency reference line when consistency is 0% or 100%
- Settings UI: "After First W/D" column with same-equity checkbox,
  expandable stage sub-rows with profit/consistency/days inputs
- Default target_same_equity to 1 for new and existing account configs

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

types.ts

@@ -7,6 +7,8 @@ export interface AccountConfig {
     accountSize: number;
     maxLoss: number;          // 0 = no limit; positive = account is "Dead" when loss exceeds this
     maxPositionSize: number;  // 0 = no limit; positive = max contracts per trade
+    targetSameEquity: boolean;   // if true, reduce profitTarget by priorProfit after withdrawal
+    withdrawalStages: { profit: number; consistency: number; minTradingDays: number }[];  // per-stage fresh profit + consistency (empty = use base values)
 }
 
 export interface FirmConfig {
@@ -34,8 +36,10 @@ 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;
-    /** FIFO daily P&L history — used by the equity curve and calendar. */
+    /** 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. */
+    fullDailyPnL: { date: string; pnl: number }[];
     /** Fund transactions (deposits/withdrawals) — used by the calendar and equity curve. */
     fundTransactions: { date: string; amount: number }[];
 }