feat: migrate to CoinAnk API and improve chart UI

- Chart improvements: professional styling, popular symbols quick selection, simplified B/S legend
- Data source migration: use CoinAnk API exclusively for all kline data
- Code cleanup: remove Binance WebSocket cache and related code (websocket_client.go, combined_streams.go, monitor.go)
- Log optimization: reduce hook spam, suppress 404 errors, increase P&L diff threshold
- Lighter integration: add order sync functionality, fix market order precision
- Remove ticker merge logic for simplicity

store/store.go

@@ -25,6 +25,7 @@ type Store struct {
 	position *PositionStore
 	strategy *StrategyStore
 	equity   *EquityStore
+	order    *OrderStore
 
 	// Encryption functions
 	encryptFunc func(string) string
@@ -153,6 +154,9 @@ func (s *Store) initTables() error {
 	if err := s.Equity().initTables(); err != nil {
 		return fmt.Errorf("failed to initialize equity tables: %w", err)
 	}
+	if err := s.Order().InitTables(); err != nil {
+		return fmt.Errorf("failed to initialize order tables: %w", err)
+	}
 	return nil
 }
 
@@ -277,6 +281,16 @@ func (s *Store) Equity() *EquityStore {
 	return s.equity
 }
 
+// Order gets order storage
+func (s *Store) Order() *OrderStore {
+	s.mu.Lock()
+	defer s.mu.Unlock()
+	if s.order == nil {
+		s.order = NewOrderStore(s.db)
+	}
+	return s.order
+}
+
 // Close closes database connection
 func (s *Store) Close() error {
 	return s.db.Close()