Ref(DeviceInfo-PaymentResult-WebView):

- Refactor `PaymentResultEntity` to include a nested `PaymentResultDataEntity` and companion factory methods for success and failure.
- Update `PaymentResultStatus` enum members from `OK`/`ERROR` to `SUCCESS`/`FAILURE`.
- Modify `PspService` and its implementations (`P3`, `PS4`, `Stage`) to return a non-nullable `PaymentResultEntity`.
- Enhance `PspWebView` with improved instance lifecycle management, `rememberUpdatedState` for callbacks, and new `onWebViewReady` and `onPageFinished` hooks.
- Optimize `PspWebView` to prevent redundant `loadUrl` calls during recomposition.
- Add `README.md` and `AGENT.md` to provide project architecture overviews and hardware-specific development guidelines.
- Update `TisWebViewScreen` and `StageWebViewScreen` to handle the refactored result models and utilize new WebView callbacks.

stage_app/src/main/java/com/example/stage_app/screen/StageWebViewScreen.kt

@@ -54,13 +54,13 @@ fun StageWebViewScreen(
             activityResult = result
         )
         val jsResult = viewModel.postPaymentResult(paymentResultEntity)
-        val currentWebView = webView
-        if (currentWebView == null) {
-            Log.w(stageWebViewTag, "Skipping onPaymentResult JS callback: WebView is not ready yet.")
-        } else {
-            currentWebView.post {
-                currentWebView.evaluateJavascript(jsResult, null)
+        webView?.let {
+            it.post {
+                it.evaluateJavascript(jsResult, null)
             }
+        } ?: run {
+            Log.w(stageWebViewTag, "Skipping onPaymentResult JS callback: WebView is not ready yet.")
+
         }
         isPaymentProcessing = false
     }

stage_app/src/main/java/com/example/stage_app/viewmodel/StageViewModel.kt

@@ -32,17 +32,23 @@ class StageViewModel @Inject constructor(
         id: String?,
         activityResult: ActivityResult
     ): PaymentResultEntity {
-        return PaymentResultEntity(
+        val mockPaymentResult =   PaymentResultEntity.success(
             id = id,
-            status = com.example.core.model.PaymentResultStatus.ERROR,
-            terminalId = "123456",
-            stan = "123456",
-            rrn = "123456",
-            responseCode = "01",
-            customerCardNO = "1234567890123456",
-            transactionDateTime = "14030101120000",
-            description = "تراکنش ناموفق"
+            message = "تراکنش با موفقیت انجام شد",
+            data = PaymentResultEntity.PaymentResultDataEntity(
+                terminalId = "123456",
+                stan = "123456",
+                rrn = "123456789012",
+                responseCode = "00",
+                customerCardNO = "603799******1234",
+                transactionDateTime = "1403/05/20 12:30:45"
+            )
         )
+        return mockPaymentResult
+//        return pspService.decodePosResponse(
+//            id = id,
+//            activityResult = activityResult
+//        )
     }
 
     private val mock = listOf<PrintEntity>(