Enhance banking transaction data structure and validation

- Increased the length of the NameOfPayer field from NVARCHAR(60) to NVARCHAR(140) in the banking transactions function, table, temporary table, and user-defined type to accommodate longer names.
- Expanded the SepaRemittanceInformation field from VARCHAR(150) to VARCHAR(200) in the banking transactions function for more detailed remittance information.
- Modified the stored procedure fds__setBankingtransaction_done to return additional transaction data (ValueDate and Amount) along with the success flag for improved notification messaging.
- Added validation in MFRClientConfig constructor to ensure the provided URL is not null or empty, enhancing error handling for configuration settings.

Fuchs/wwwroot/web/fis.css

@@ -2231,53 +2231,55 @@ main nav ul > li a[role=button]:hover::after, main nav ul > li a[role=button].fb
 }
 
 #notification_frame {
-  position: fixed;
-  bottom: 1rem;
-  right: 1rem;
-  z-index: 2000;
-  width: min(24rem, 100vw - 2rem);
+  height: 100%;
+  overflow: hidden;
   display: flex;
   flex-direction: column;
-  gap: 0.5rem;
   pointer-events: none;
 }
 
 .notification_item {
   position: relative;
-  background: #fff;
-  border-left: 0.35rem solid rgb(27, 67, 121);
-  border-radius: 0.35rem;
-  box-shadow: 0 0.25rem 1rem rgba(30, 35, 45, 0.25);
-  color: #222;
-  padding: 0.75rem 2.2rem 0.75rem 0.85rem;
+  flex: 0 0 2.3rem;
+  height: 2.3rem;
+  box-sizing: border-box;
+  display: flex;
+  align-items: center;
+  text-align: left;
+  white-space: nowrap;
+  overflow: hidden;
+  color: #FFF;
+  padding: 0 2.2rem 0 0.85rem;
   pointer-events: auto;
 }
-.notification_item.warn {
-  border-left-color: #c78300;
-}
-.notification_item.error {
-  border-left-color: #b92525;
+.notification_item.warn, .notification_item.warning, .notification_item.error {
+  color: rgb(255, 200, 1);
 }
 .notification_item .notification_title {
   font-weight: bold;
-  line-height: 1.25;
-  margin-bottom: 0.2rem;
+  flex: 0 0 auto;
+}
+.notification_item .notification_title::after {
+  content: ":";
+  margin-right: 0.35rem;
 }
 .notification_item .notification_message {
-  font-size: 0.9rem;
-  line-height: 1.3;
+  overflow: hidden;
+  text-overflow: ellipsis;
+  white-space: nowrap;
 }
 .notification_item .notification_close {
   position: absolute;
-  top: 0.35rem;
+  top: 0;
   right: 0.45rem;
+  height: 100%;
   border: 0;
   background: transparent;
-  color: #444;
+  color: inherit;
   cursor: pointer;
   font-size: 1.2rem;
-  line-height: 1;
-  padding: 0.1rem 0.25rem;
+  line-height: 2.3rem;
+  padding: 0 0.25rem;
 }
 
 .wdg_frame {

Fuchs/wwwroot/web/fis.js

@@ -3088,8 +3088,22 @@ $fis.notifications = {
         this.connection.on('notification', (notification) => {
             this.push(notification);
         });
-        this.connection.start().catch(() => {
+        // withAutomaticReconnect() only retries a connection that was successfully
+        // established and later dropped — it does not retry a failed initial start()
+        // (e.g. the server restarting mid-debug). Without this, a single failed start()
+        // silently blackholes every notification for the rest of the page's lifetime.
+        this.connection.onclose(() => {
+            console.warn('Notification connection closed; retrying in 5s.');
             this.connection = null;
+            setTimeout(() => this.init(), 5000);
+        });
+        this.start();
+    },
+    start: function () {
+        this.connection.start().catch((err) => {
+            console.warn('Notification connection failed to start; retrying in 5s.', err);
+            this.connection = null;
+            setTimeout(() => this.init(), 5000);
         });
     },
     ensureFrame: function () {