add support for fahipay images

app/src/main/java/sh/sar/basedbank/api/fahipay/FahipayLoginFlow.kt

@@ -237,7 +237,8 @@ class FahipayLoginFlow {
                     reference = e.optString("transaction").takeIf { it.isNotBlank() },
                     accountNumber = accountNumber,
                     accountDisplayName = accountDisplayName,
-                    source = "FAHIPAY"
+                    source = "FAHIPAY",
+                    iconUrl = e.optString("icon").takeIf { it.isNotBlank() }
                 )
             }
             Pair(list, total)

app/src/main/java/sh/sar/basedbank/api/mib/MibModels.kt

@@ -82,7 +82,8 @@ data class Transaction(
     val reference: String?,
     val accountNumber: String,
     val accountDisplayName: String,
-    val source: String                  // "MIB", "BML", "BML_CARD"
+    val source: String,                 // "MIB", "BML", "BML_CARD", "FAHIPAY"
+    val iconUrl: String? = null         // merchant icon URL (Fahipay only)
 )
 
 data class MibFinanceDeal(

app/src/main/java/sh/sar/basedbank/api/mib/TransactionCache.kt

@@ -22,6 +22,7 @@ object TransactionCache {
                 put("accountNumber", t.accountNumber)
                 put("accountDisplayName", t.accountDisplayName)
                 put("source", t.source)
+                if (t.iconUrl != null) put("iconUrl", t.iconUrl)
             })
             File(context.cacheDir, "tx_$key.json").writeText(CacheEncryption.encrypt(arr.toString()))
         } catch (_: Exception) {}
@@ -46,7 +47,8 @@ object TransactionCache {
                 reference = o.optString("reference").takeIf { it.isNotBlank() },
                 accountNumber = o.optString("accountNumber"),
                 accountDisplayName = o.optString("accountDisplayName"),
-                source = o.optString("source")
+                source = o.optString("source"),
+                iconUrl = o.optString("iconUrl").takeIf { it.isNotBlank() }
             )
         }
     } catch (_: Exception) { emptyList() }