Complete Match Results modal: standalone overlay, auto-open on resolution

MatchResultScreen becomes a self-contained modal (IsOpen/Open/Close,
_panelRoot, pause handling); resolution auto-open moves there from the
session browser. OverviewMenu integrates it into the Esc chain and hides
the Match Results button until results exist (same pattern as the
role-scoped mode buttons).

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

Assets/Scripts/Network/UI/OnlineSessionBrowserUI.cs

@@ -13,9 +13,7 @@ using UnityEngine.UI;
 /// lobby/map the overview (Esc) menu reopens it via <see cref="Open"/> as a modal pause overlay
 /// (cursor freed, gameplay suspended via <see cref="GameModeManager.SetPaused"/>) - all Esc key
 /// handling lives in <see cref="OverviewMenu"/>, which closes this overlay through <see cref="Close"/>.
-/// It also auto-opens when the Resolution sub-phase begins so
-/// the final match scoreboard (a section of this panel) is presented. The Disconnect button is
-/// context-sensitive: in Main it is an
+/// The Disconnect button is context-sensitive: in Main it is an
 /// application "Exit"; on the map it becomes "Back to Lobby" for the match authority (ends the match);
 /// everyone else gets a plain disconnect. Only the visual <see cref="panelRoot"/> is toggled - this binder
 /// stays alive on its (always-active) canvas so it keeps tracking state while the panel is hidden.
@@ -61,7 +59,6 @@ public class OnlineSessionBrowserUI : MonoBehaviour
     private bool _connected;              // last-seen connection state (to detect transitions)
     private Scene _lastScene;             // last-seen active scene (to auto-close on a scene change)
     private string _disconnectText;       // last applied caption (avoids per-frame TMP churn)
-    private MatchManager.MatchSubPhase _lastSubPhase; // last-seen sub-phase (auto-open on Resolution)
 
     private void Awake()
     {
@@ -124,16 +121,6 @@ public class OnlineSessionBrowserUI : MonoBehaviour
 
         if (!connected) return;                                   // Main: panel always shown
 
-        // Resolution just began -> auto-open the overlay so the final scoreboard is presented. Esc can
-        // still close it (via the overview menu); the lobby scene swap afterwards auto-closes it (see above).
-        MatchManager.MatchSubPhase subPhase = _match ? _match.LocalSubPhase : MatchManager.MatchSubPhase.None;
-        if (subPhase != _lastSubPhase)
-        {
-            _lastSubPhase = subPhase;
-            if (subPhase == MatchManager.MatchSubPhase.Resolution && !_open)
-                SetOpen(true);
-        }
-
         RefreshDisconnectLabel();
     }
 
@@ -202,7 +189,6 @@ public class OnlineSessionBrowserUI : MonoBehaviour
             // Connection up (hosted/joined) -> hide the panel; Esc reopens it in the lobby/map.
             // Back to Main (disconnect/shutdown) -> show it again and drop any pause.
             _open = false;
-            _lastSubPhase = MatchManager.MatchSubPhase.None; // rejoining into Resolution must re-trigger
             if (!connected && _gameMode) _gameMode.SetPaused(false);
             ApplyVisibility();
         }