BML change payment gateway to use PayMV QR, so added support for it

app/src/main/java/sh/sar/basedbank/util/PaymvQrParser.kt

@@ -9,6 +9,24 @@ data class PaymvQrData(
 
 object PaymvQrParser {
 
+    /**
+     * Returns the BML gateway URL if [raw] is or contains one, otherwise null.
+     * Handles both plain URL QRs and combined EMV QRs (e.g. Fahipay+BML card QR).
+     * For combined EMV QRs the URL is parsed from TLV (root tag 35 → sub-tag 20 → sub-sub-tag 01)
+     * rather than via regex, to avoid greedily consuming subsequent EMV tag bytes.
+     */
+    fun extractBmlGatewayUrl(raw: String): String? {
+        if (raw.startsWith("https://pay.bml.com.mv/app/")) return raw
+        return try {
+            val root = parseTlv(raw)
+            val bmlMerchantInfo = root["35"]?.let { parseTlv(it) } ?: return null
+            val inner = bmlMerchantInfo["20"]?.let { parseTlv(it) } ?: return null
+            inner["01"]?.takeIf { it.startsWith("https://pay.bml.com.mv/app/") }
+        } catch (_: Exception) {
+            null
+        }
+    }
+
     fun parse(raw: String): PaymvQrData? {
         return try {
             val root = parseTlv(raw)