style: align v1.4.5 additions with HellionChat conventions

Pattern-adherence pass after the cycle's code commits:

- ChatLogWindow.cs: NotifiedDrawFailure renamed from
  _notifiedDrawFailure. The file's per-window state flags (DrewThisFrame,
  WasDocked, Activate, PlayedClosingSound, …) all use PascalCase
  without underscore prefix; the new flag now matches that
- Plugin.cs: trim the session-only RemoveAll comment from 5 lines to 2
  and add the standard TEST-MIRROR pointer line. Same shape as
  AutoTellTabsService.cs:28 and the other six TEST-MIRROR sites
- InputHistoryService.cs: add the TEST-MIRROR pointer for the new
  Build-Suite tests

HellionChat/InputHistoryService.cs

@@ -4,6 +4,7 @@ namespace HellionChat;
 
 // Shared input history for all ChatInputBars (main and pop-out windows).
 // Push deduplicates: existing entries are moved to the end when re-added.
+// TEST-MIRROR: ../../Hellion Build test/Util/InputHistoryServiceTests.cs
 public static class InputHistoryService
 {
     private const int MaxSize = 30;

HellionChat/Plugin.cs

@@ -164,11 +164,9 @@ public sealed class Plugin : IAsyncDalamudPlugin
             );
         }
 
-        // Auto-Tell-Tabs are session-only: their messages are usually
-        // privacy-filtered and resurrecting an empty tab from a crashed
-        // session would trigger DB-reconstruction on the next load. The
-        // TempTabCounter then re-pegs the snapshot from the stripped list in
-        // AutoTellTabsService.Initialize. (F2.3 — TEST-MIRROR in Build-Suite.)
+        // Session-only tabs are stripped on every load; AutoTellTabsService.Initialize
+        // then re-pegs TempTabCounter from the stripped list, not the pre-strip snapshot.
+        // TEST-MIRROR: ../../Hellion Build test/_Helpers/TempTabCounterTests.cs
         Config.Tabs.RemoveAll(t => t.IsTempTab);
 
         LanguageChanged(Interface.UiLanguage);

HellionChat/Ui/ChatLogWindow.cs

@@ -90,9 +90,9 @@ public sealed class ChatLogWindow : Window
     private bool PlayedClosingSound = true;
     private bool DrewThisFrame;
 
-    // F7.1: one-shot guard so a recurring draw failure doesn't spam the
+    // One-shot guard so a recurring draw failure doesn't spam the
     // notification stack frame-by-frame. Resets only on next plugin reload.
-    private bool _notifiedDrawFailure;
+    private bool NotifiedDrawFailure;
 
     private long FrameTime; // set every frame
     internal long LastActivityTime = Environment.TickCount64;
@@ -631,7 +631,7 @@ public sealed class ChatLogWindow : Window
         catch (Exception ex)
         {
             Plugin.Log.Error(ex, "Error drawing Chat Log window");
-            if (!_notifiedDrawFailure)
+            if (!NotifiedDrawFailure)
             {
                 Plugin.Notification.AddNotification(
                     new Dalamud.Interface.ImGuiNotification.Notification
@@ -642,7 +642,7 @@ public sealed class ChatLogWindow : Window
                         InitialDuration = TimeSpan.FromSeconds(20),
                     }
                 );
-                _notifiedDrawFailure = true;
+                NotifiedDrawFailure = true;
             }
             // Prevent recurring draw failures from constantly trying to grab
             // input focus, which breaks every other ImGui window.