Add OverviewMenu escape menu, remove Tab mode cycling

- New OverviewMenu component: Esc toggles the pause overlay, buttons
  switch modes via GameModeManager.TrySwitchTo<T>() and close the panel;
  visibility follows the role-scoped mode set, active mode disabled.
- Esc in paint mode exits to camera mode instead (PlayerControlMode,
  hunter falls back to FirstPersonMode) rather than opening the menu.
- Centralized all Esc handling in OverviewMenu (browser close included)
  to avoid frame races; OnlineSessionBrowserUI gains IsOpen/Open/Close.
- GameModeManager: switchKey Tab-cycle removed, TrySwitchTo<T> added.

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

Assets/Scripts/Network/UI/OnlineSessionBrowserUI.cs

@@ -3,9 +3,6 @@ using TMPro;
 using UnityEngine;
 using UnityEngine.SceneManagement;
 using UnityEngine.UI;
-#if ENABLE_INPUT_SYSTEM
-using UnityEngine.InputSystem;
-#endif
 
 /// <summary>
 /// uGUI binding for <see cref="OnlineSessionManager"/>: Host / Refresh / row select / Join / Disconnect
@@ -13,13 +10,15 @@ using UnityEngine.InputSystem;
 /// <see cref="OnlineSessionManager.SessionsChanged"/> events; the session logic stays on the manager.
 ///
 /// The panel is always shown in Main (not connected); once a connection is up it hides, and in the
-/// lobby/map Esc toggles it back as a modal pause overlay (cursor freed, gameplay suspended via
-/// <see cref="GameModeManager.SetPaused"/>). It also auto-opens when the Resolution sub-phase begins so
+/// 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
 /// 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 reading Esc while the panel is hidden.
+/// stays alive on its (always-active) canvas so it keeps tracking state while the panel is hidden.
 /// </summary>
 public class OnlineSessionBrowserUI : MonoBehaviour
 {
@@ -41,8 +40,8 @@ public class OnlineSessionBrowserUI : MonoBehaviour
     [SerializeField] private TMP_Text statusLabel;
 
     [Header("Overlay")]
-    [Tooltip("Visual container toggled by Esc while connected (the panel root). Must be a CHILD of this " +
-             "binder's object so the binder keeps running - and reading Esc - while the panel is hidden.")]
+    [Tooltip("Visual container toggled while connected (the panel root). Must be a CHILD of this " +
+             "binder's object so the binder keeps running while the panel is hidden.")]
     [SerializeField] private GameObject panelRoot;
 
     [Tooltip("Background tint of the selected row.")]
@@ -58,7 +57,7 @@ public class OnlineSessionBrowserUI : MonoBehaviour
     private GameModeManager _gameMode;    // pause hook for the modal overlay; found at runtime
     private TMP_Text _disconnectLabel;    // disconnect button caption (relabelled to "Back to Lobby")
 
-    private bool _open;                   // Esc-toggled visibility while connected
+    private bool _open;                   // overlay visibility while connected (toggled via Open/Close)
     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)
@@ -123,10 +122,10 @@ public class OnlineSessionBrowserUI : MonoBehaviour
             SetOpen(false);
         _lastScene = scene;
 
-        if (!connected) return;                                   // Main: panel always shown, Esc ignored
+        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; the lobby scene swap afterwards auto-closes it (see above).
+        // 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)
         {
@@ -135,13 +134,25 @@ public class OnlineSessionBrowserUI : MonoBehaviour
                 SetOpen(true);
         }
 
-        bool inLobbyOrMap = _match && (_match.IsLocalSceneLobby || _match.IsLocalSceneMap);
-        if (inLobbyOrMap && EscapePressed())
-            SetOpen(!_open);
-
         RefreshDisconnectLabel();
     }
 
+    /// <summary>True while the modal overlay is open on a live connection (the always-shown Main panel
+    /// does not count). The overview menu yields Esc to this overlay while it is open.</summary>
+    public bool IsOpen => _open;
+
+    /// <summary>Opens the modal overlay (used by the overview menu's Session button); false when
+    /// not connected - in Main the panel is always visible and never a pause overlay.</summary>
+    public bool Open()
+    {
+        if (!(manager && manager.IsConnected)) return false;
+        SetOpen(true);
+        return true;
+    }
+
+    /// <summary>Closes the modal overlay and resumes gameplay (Esc handling in <see cref="OverviewMenu"/>).</summary>
+    public void Close() => SetOpen(false);
+
     private void OnHost() { if (manager) manager.Host(); }
     private void OnRefresh() { if (manager) manager.Refresh(); }
     private void OnJoin() { if (manager && !string.IsNullOrEmpty(_selectedId)) manager.Join(_selectedId); }
@@ -308,13 +319,4 @@ public class OnlineSessionBrowserUI : MonoBehaviour
         return t ? t.GetComponent<TMP_Text>() : null;
     }
 
-    // NOT TypingGuard-gated (GameplayKeyPressed): Esc must close the panel even while a text field has focus.
-    private static bool EscapePressed()
-    {
-#if ENABLE_INPUT_SYSTEM
-        return InputUtil.KeyPressedThisFrame(Key.Escape);
-#else
-        return InputUtil.KeyPressedThisFrame(KeyCode.Escape);
-#endif
-    }
 }