Use exchange fees, UPL, funding for LIVE PnL; USDC 1:1 to USDT.

Option open P&L stays local (option net); exit target ignores estimated close fees.

Co-authored-by: Cursor <cursoragent@cursor.com>

backend/app/models/db.py

@@ -41,7 +41,8 @@ CREATE TABLE IF NOT EXISTS groups (
   fees REAL DEFAULT 0,
   slip_cost REAL DEFAULT 0,
   note TEXT,
-  exec_mode TEXT
+  exec_mode TEXT,
+  funding_usdt REAL
 );
 
 CREATE TABLE IF NOT EXISTS fills (
@@ -150,7 +151,9 @@ class Database:
         with self._lock:
             for table, col, decl in (
                 ("groups", "exec_mode", "TEXT"),
+                ("groups", "funding_usdt", "REAL"),
                 ("fills", "exec_mode", "TEXT"),
+                ("fills", "fee_ccy", "TEXT"),
             ):
                 cols = {
                     str(r[1])