popout: opt-in ChatInputBar with focus-aware keybind routing

ChatTwo/InputHistoryService.cs

@@ -5,7 +5,11 @@ namespace ChatTwo;
 // Hellion Chat — v0.6.0 shared input history. Replaces the embedded
 // ChatLogWindow.InputBacklog so that pop-out windows with their own
 // ChatInputBar can navigate the same Up/Down history as the main window.
-// Newest entry at index 0; consecutive duplicates are collapsed.
+// Index semantics are kept identical to the v0.5.x InputBacklog:
+//   index 0          = oldest entry
+//   index Count - 1  = newest entry
+// Push performs move-to-newest deduplication: existing entries are
+// removed before the new one is appended at the end.
 public static class InputHistoryService
 {
     private const int MaxSize = 30;
@@ -13,6 +17,8 @@ public static class InputHistoryService
 
     public static IReadOnlyList<string> Entries => _entries;
 
+    public static int Count => _entries.Count;
+
     public static void Push(string entry)
     {
         if (string.IsNullOrWhiteSpace(entry))
@@ -20,14 +26,20 @@ public static class InputHistoryService
 
         var trimmed = entry.Trim();
 
-        // Drop consecutive duplicates so spamming the same line does not
-        // pollute the history with repeats.
-        if (_entries.Count > 0 && _entries[0] == trimmed)
-            return;
+        // Move-to-newest: existing entries are removed before the append
+        // so the same line typed twice does not occupy two history slots.
+        for (var i = 0; i < _entries.Count; i++)
+        {
+            if (_entries[i] == trimmed)
+            {
+                _entries.RemoveAt(i);
+                break;
+            }
+        }
 
-        _entries.Insert(0, trimmed);
+        _entries.Add(trimmed);
         if (_entries.Count > MaxSize)
-            _entries.RemoveAt(_entries.Count - 1);
+            _entries.RemoveAt(0);
     }
 
     public static string? GetByCursor(int cursor)
@@ -36,6 +48,4 @@ public static class InputHistoryService
             return null;
         return _entries[cursor];
     }
-
-    public static int Count => _entries.Count;
 }