first commit of restructured project

trahn-trade-backend/db/migrations/002_add_paper_wallet_columns.sql

@@ -0,0 +1,15 @@
+-- Migration: Add Paper Wallet Columns to grid_state
+-- This allows grid_state to store paper trading virtual wallet data
+
+ALTER TABLE grid_state 
+  ADD COLUMN IF NOT EXISTS paper_eth_balance DECIMAL(18, 8),
+  ADD COLUMN IF NOT EXISTS paper_usdc_balance DECIMAL(12, 2),
+  ADD COLUMN IF NOT EXISTS paper_total_gas_spent DECIMAL(18, 8),
+  ADD COLUMN IF NOT EXISTS paper_trades_json JSONB,
+  ADD COLUMN IF NOT EXISTS paper_start_time TIMESTAMPTZ,
+  ADD COLUMN IF NOT EXISTS paper_initial_eth DECIMAL(18, 8),
+  ADD COLUMN IF NOT EXISTS paper_initial_usdc DECIMAL(12, 2);
+
+-- For live trading mode, these columns will be NULL
+-- For paper mode, these columns store the virtual wallet state
+