feat: verify manual mark-paid payments

- add on-chain validation before manual mark-paid
- verify recipient address, token contract, amount, confirmations, and tx time
- reject duplicate transaction hashes and non on-chain orders
- add manual payment verification tests for EVM, TRON, and Solana
- change BSC network key to binance
- add display_name to supported_assets while keeping network unchanged

src/model/response/support_response.go

@@ -1,8 +1,9 @@
 package response
 
 type NetworkTokenSupport struct {
-	Network string   `json:"network" example:"tron"`
-	Tokens  []string `json:"tokens" example:"USDT,USDC"`
+	Network     string   `json:"network" example:"tron"`
+	DisplayName string   `json:"display_name" example:"TRON"`
+	Tokens      []string `json:"tokens" example:"USDT,USDC"`
 }
 
 type EpayPublicConfig struct {