migration: clarify v11->v12 log message and trim rotting comment

ChatTwo/Plugin.cs

@@ -169,10 +169,10 @@ public sealed class Plugin : IDalamudPlugin
 
             // Hellion Chat v11 → v12 — flips Configuration.PopOutInputEnabled from
             // the v0.6.0 opt-in default (false) to opt-out (true) per v0.6.1 UX
-            // polish. Tester feedback: users found the manual toggle "umständlich,
-            // wirkt unfertig". Hard-flip applies to all existing users — small active
-            // tester pool means few have made a deliberate opt-out choice yet.
-            // Communicated via the v0.6.1 hint banner (SeenPopOutHeaderHint reset).
+            // polish. Hard-flip is a deliberate design call (see Spec section 5.7);
+            // users are notified via the v0.6.1 hint banner (SeenPopOutHeaderHint
+            // reset). Re-toggle after migration is preserved because this block
+            // only fires for Version < 12.
             if (Config.Version < 12)
             {
                 Config.PopOutInputEnabled = true;
@@ -181,7 +181,7 @@ public sealed class Plugin : IDalamudPlugin
                 SaveConfig();
                 Log.Information(
                     "Migrated config v11 → v12: PopOutInputEnabled hard-flipped to true (v0.6.1 default), " +
-                    "SeenPopOutHeaderHint added (default false)");
+                    "SeenPopOutHeaderHint reset to false (v0.6.1 banner re-armed)");
             }
 
             // Hellion default tab layout for first-run and v10-wipe.