refactor: use canonical token-to-symbol maps for market lookup

Build canonical spot/future token maps with quote priority, unify cache refresh scheduling, and switch resolver/token tests to map-based token lookups.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

internal/data/market/main.go

@@ -13,6 +13,8 @@ type MarketData struct {
 	// Trading pair caches
 	spotPairs           map[string]bool
 	futuresPairs        map[string]bool
+	spotToken2Symbol    map[string]string
+	futureToken2Symbol  map[string]string
 	pairCacheMutex      sync.RWMutex
 	lastPairCacheUpdate time.Time
 
@@ -29,18 +31,17 @@ type MarketData struct {
 func NewMarketData() *MarketData {
 	log.Info().Msg("Start market service")
 	ms := &MarketData{
-		spotPairs:     make(map[string]bool),
-		futuresPairs:  make(map[string]bool),
-		alphaTokens:   make(map[string]AlphaTokenInfo),
-		spotClient:    binance.NewClient("", ""),
-		futuresClient: futures.NewClient("", ""),
+		spotPairs:          make(map[string]bool),
+		futuresPairs:       make(map[string]bool),
+		spotToken2Symbol:   make(map[string]string),
+		futureToken2Symbol: make(map[string]string),
+		alphaTokens:        make(map[string]AlphaTokenInfo),
+		spotClient:         binance.NewClient("", ""),
+		futuresClient:      futures.NewClient("", ""),
 	}
 
-	if err := ms.refreshTradingPairCache(); err != nil {
-		log.Error().Err(err).Msg("Failed initial trading pair cache load")
-	}
-	go ms.pairCacheRefreshLoop()
-	go ms.alphaCacheRefreshLoop()
+	ms.refreshAllCaches()
+	go ms.cacheRefreshLoop()
 
 	return ms
 }