Add the Tools > Ban List window

Reimplements the official client's ban list: a searchable table of the
server's bans with Add / Remove / Edit, an own-ban filter and highlight,
choosable columns, and the Add/Edit dialog whose IP and name patterns
can be read as IPv4/IPv6 wildcards, fixed strings or regular expressions
(translated to the regexes banadd takes exactly as the official client
does). Editing is add-then-delete, since the protocol has no banedit.

The ban list is read from the notifybanlist burst that answers banlist,
like channelpermlist. The menu item is only shown where the server grants
b_client_ban_list.

Also fixes ServerModel numbering permissions from 0 instead of 1, which
had every selfPermissionValue() lookup reading the neighbouring
permission — including the group-assignment menus.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

ts3-client/swing/src/main/java/com/ts3client/ui/MainFrame.java

@@ -3,6 +3,7 @@ package com.ts3client.ui;
 import com.ts3client.audio.AudioBackend;
 import com.ts3client.audio.desktop.DesktopAudioBackend;
 import com.ts3client.config.AwayMessages;
+import com.ts3client.config.BanReasonPresets;
 import com.ts3client.config.Bookmark;
 import com.ts3client.config.Bookmarks;
 import com.ts3client.config.IdentityStore;
@@ -55,6 +56,7 @@ public final class MainFrame extends JFrame implements ServerTabPane.Listener {
 
     /** The tab whose views are on screen. */
     private ServerTab selected;
+    private BanReasonPresets banReasonPresets;
     /** The tab that owns the capture device; null when nobody is capturing. */
     private ServerTab micTab;
 
@@ -191,6 +193,16 @@ public final class MainFrame extends JFrame implements ServerTabPane.Listener {
                 showIdentities();
             }
 
+            @Override
+            public boolean canViewBanList() {
+                return selected != null && selected.canViewBanList();
+            }
+
+            @Override
+            public void onShowBanList() {
+                if (selected != null) selected.showBanList(banReasonPresets());
+            }
+
             @Override
             public void onShowSettings() {
                 showSettings();
@@ -743,6 +755,12 @@ public final class MainFrame extends JFrame implements ServerTabPane.Listener {
         System.exit(0);
     }
 
+    /** Loaded the first time a ban dialog needs them, and shared by every tab from then on. */
+    private BanReasonPresets banReasonPresets() {
+        if (banReasonPresets == null) banReasonPresets = BanReasonPresets.load();
+        return banReasonPresets;
+    }
+
     private void showIdentities() {
         new IdentitiesDialog(this, identities, settings, bookmarks, null).setVisible(true);
     }