separa Dashboard de Trades: backtest.xlsx 39MB -> 1MB

backtest.xlsx ramane doar Config + Trades (editat zilnic, rapid la salvat).
Dashboard-ul devine fisier separat data/Dashboard.xlsx, generat la comanda:

- scripts/generate_dashboard.py: citeste backtest.xlsx read-only/data_only,
  reutilizeaza build_dashboard() pe un sheet Trades static, scrie Dashboard.xlsx
- scripts/strip_dashboard.py: migrare unica prin chirurgie pe zip (pastreaza
  dropdown-urile x14 din Trades; openpyxl le-ar fi sters)
- refresh_dashboard.bat: wrapper dublu-click (regenereaza + deschide)
- build_workbook() nu mai include Dashboard; graficele de echitate eliminate
- data/Dashboard.xlsx ignorat (output regenerabil)

Sincronizare la comanda (nu live): ruleaza refresh_dashboard.bat dupa ce
salvezi backtest.xlsx in Excel.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

refresh_dashboard.bat

@@ -0,0 +1,13 @@
+@echo off
+REM Regenereaza data\Dashboard.xlsx din data\backtest.xlsx si il deschide.
+REM IMPORTANT: deschide & salveaza backtest.xlsx in Excel inainte de refresh,
+REM ca valorile calculate (R_/$_/Bal_) sa fie in cache.
+cd /d D:\PROIECTE\atm-backtesting
+python scripts\generate_dashboard.py
+if %errorlevel%==0 (
+    start "" "data\Dashboard.xlsx"
+) else (
+    echo.
+    echo Generarea a esuat ^(vezi mesajul de mai sus^).
+)
+pause