Fix option history to full closes only, 2-decimal USDC, restore hide-delete.

Filter OKX positions-history to type 2/3/6, format premium and bid recovery to 2 decimals, and allow locally hiding rows via delete button.

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

tests/test_options_sync.py

@@ -4,6 +4,7 @@ import sqlite3
 from lib.exchange.okx_options_lib import (
     format_option_history_row,
     format_usdc_amount,
+    is_option_full_close_history,
     resolve_option_close_from_history,
 )
 from lib.options.options_db import init_options_tables
@@ -11,9 +12,16 @@ from lib.options.options_monitor_lib import sync_open_options_trades
 
 
 def test_format_usdc_amount():
-    assert format_usdc_amount(4.896) == "4.896"
-    assert format_usdc_amount(4.90) == "4.9"
-    assert format_usdc_amount(4.0) == "4"
+    assert format_usdc_amount(4.896) == "4.90"
+    assert format_usdc_amount(4.9) == "4.90"
+    assert format_usdc_amount(4.0) == "4.00"
+
+
+def test_is_option_full_close_history():
+    assert is_option_full_close_history({"type": "2"})
+    assert is_option_full_close_history({"type": "3"})
+    assert not is_option_full_close_history({"type": "1"})
+    assert not is_option_full_close_history({"type": "5"})
 
 
 def test_format_option_history_row():
@@ -36,7 +44,8 @@ def test_format_option_history_row():
     assert row["realized_pnl"] == -3.99
     assert row["status_label"] == "已平"
     assert row["open_avg_px_fmt"] == "380"
-    assert row["premium_paid_fmt"] == "3.8"
+    assert row["premium_paid_fmt"] == "3.80"
+    assert row["history_key"] == "ex:pos-btc"
 
 
 def test_resolve_option_close_from_history_picks_latest():