feat: fetch alpha price by symbol ticker

Keep alpha token existence from list cache and fetch live alpha price via symbol ticker endpoint for richer token response accuracy.

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

internal/services/tele/commands/token_test.go

@@ -56,6 +56,7 @@ type marketStub struct {
 		time  int64
 	}
 	alphaTokens map[string]market.AlphaTokenInfo
+	alphaPrices map[string]float64
 	marginRates map[string]float64
 }
 
@@ -81,6 +82,10 @@ func (m *marketStub) GetAlphaToken(symbol string) (market.AlphaTokenInfo, bool)
 	v, ok := m.alphaTokens[symbol]
 	return v, ok
 }
+func (m *marketStub) GetAlphaPrice(symbol string) (float64, bool) {
+	v, ok := m.alphaPrices[symbol]
+	return v, ok
+}
 func (m *marketStub) IsSpotPair(symbol string) bool    { return m.spotPairs[symbol] }
 func (m *marketStub) IsFuturesPair(symbol string) bool { return m.futuresPairs[symbol] }
 func (m *marketStub) RefreshTradingPairCache() error   { return nil }
@@ -126,3 +131,26 @@ func TestCollectRichTokenData_FutureFailureStillKeepsSpot(t *testing.T) {
 		t.Fatalf("did not expect future when future lookup fails: %+v", args)
 	}
 }
+
+func TestCollectRichTokenData_AlphaUsesSymbolPrice(t *testing.T) {
+	orig := data.Market
+	defer func() { data.Market = orig }()
+
+	data.Market = &marketStub{
+		alphaTokens: map[string]market.AlphaTokenInfo{
+			"ABC": {Symbol: "ABC", PercentChange24h: "12.4", Price: "0.1"},
+		},
+		alphaPrices: map[string]float64{"ABCUSDT": 0.1234},
+	}
+
+	args := collectRichTokenData("ABC")
+	if !args.HasAlpha {
+		t.Fatalf("expected alpha to be available: %+v", args)
+	}
+	if !args.HasAlpha24h {
+		t.Fatalf("expected alpha 24h to be available: %+v", args)
+	}
+	if args.AlphaPrice != 0.1234 {
+		t.Fatalf("expected alpha price from symbol lookup, got %.4f", args.AlphaPrice)
+	}
+}