improved tgsettle messages + storage fixes

api/gateway/tgsettle/internal/service/treasury/bot/commands.go

@@ -6,6 +6,7 @@ type Command string
 
 const (
 	CommandStart    Command = "start"
+	CommandHelp     Command = "help"
 	CommandFund     Command = "fund"
 	CommandWithdraw Command = "withdraw"
 	CommandConfirm  Command = "confirm"
@@ -14,6 +15,7 @@ const (
 
 var supportedCommands = []Command{
 	CommandStart,
+	CommandHelp,
 	CommandFund,
 	CommandWithdraw,
 	CommandConfirm,
@@ -56,3 +58,29 @@ func supportedCommandsMessage() string {
 func confirmationCommandsMessage() string {
 	return "Confirm operation?\n\n" + CommandConfirm.Slash() + "\n" + CommandCancel.Slash()
 }
+
+func helpMessage(accountCode string, currency string) string {
+	accountCode = strings.TrimSpace(accountCode)
+	currency = strings.ToUpper(strings.TrimSpace(currency))
+	if accountCode == "" {
+		accountCode = "N/A"
+	}
+	if currency == "" {
+		currency = "N/A"
+	}
+
+	lines := []string{
+		"Treasury bot help",
+		"",
+		"Attached account: " + accountCode + " (" + currency + ")",
+		"",
+		"How to use:",
+		"1) Start funding with " + CommandFund.Slash() + " or withdrawal with " + CommandWithdraw.Slash(),
+		"2) Enter amount as decimal, dot separator, no currency (example: 1250.75)",
+		"3) Confirm with " + CommandConfirm.Slash() + " or abort with " + CommandCancel.Slash(),
+		"",
+		"After confirmation there is a cooldown window. You can cancel during it with " + CommandCancel.Slash() + ".",
+		"You will receive a follow-up message with execution success or failure.",
+	}
+	return strings.Join(lines, "\n")
+}