feat(explorer): dual-chain wallet metadata, native coin pricing, and UI refresh.

Add Chain 138 wallet network metadata and stats coin-price enrichment; sync frontend explorer SPA, command center, and address/token pages with backend config.

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

backend/go.mod

@@ -9,7 +9,7 @@ require (
 	github.com/ethereum/go-ethereum v1.13.5
 	github.com/golang-jwt/jwt/v4 v4.5.2
 	github.com/gorilla/websocket v1.5.1
-	github.com/jackc/pgx/v5 v5.5.1
+	github.com/jackc/pgx/v5 v5.5.5
 	github.com/redis/go-redis/v9 v9.17.2
 	github.com/stretchr/testify v1.11.1
 	golang.org/x/crypto v0.36.0
@@ -33,6 +33,7 @@ require (
 	github.com/ethereum/c-kzg-4844 v0.4.0 // indirect
 	github.com/go-ole/go-ole v1.2.5 // indirect
 	github.com/go-stack/stack v1.8.1 // indirect
+	github.com/google/uuid v1.6.0 // indirect
 	github.com/holiman/uint256 v1.2.3 // indirect
 	github.com/jackc/pgpassfile v1.0.0 // indirect
 	github.com/jackc/pgservicefile v0.0.0-20231201235250-de7065d80cb9 // indirect
@@ -40,6 +41,8 @@ require (
 	github.com/mattn/go-isatty v0.0.19 // indirect
 	github.com/mmcloughlin/addchain v0.4.0 // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect
+	github.com/prometheus/client_golang v1.20.5 // indirect
+	github.com/rogpeppe/go-internal v1.10.0 // indirect
 	github.com/shirou/gopsutil v3.21.4-0.20210419000835-c7a38de76ee5+incompatible // indirect
 	github.com/supranational/blst v0.3.11 // indirect
 	github.com/tklauser/go-sysconf v0.3.12 // indirect
@@ -51,6 +54,5 @@ require (
 	golang.org/x/sys v0.31.0 // indirect
 	golang.org/x/text v0.23.0 // indirect
 	golang.org/x/tools v0.21.1-0.20240508182429-e35e4ccd0d2d // indirect
-	google.golang.org/protobuf v1.33.0 // indirect
 	rsc.io/tmplfunc v0.0.3 // indirect
 )