fix: respect mana-loss prompt during phase skip and auto-pass

Auto-passing (yield) and phase-skip both returned null from
chooseSpellAbilityToPlay before reaching passPriority(), silently
discarding floating mana without showing the UI_MANA_LOST_PROMPT
dialog. Both paths now check willManaBeLostAtEndOfPhase() and fall
through to InputPassPriority when mana would be lost.

Also removes duplicate AfkTimeout import in InputPassPriority.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: RafaelHGOliveira

forge-gui/src/main/java/forge/player/PlayerControllerHuman.java

@@ -1520,16 +1520,36 @@ public List<SpellAbility> chooseSpellAbilityToPlay() {
                     e.printStackTrace();
                 }
             }
-            netLog.trace("Returning null (mayAutoPass) for player {}", player.getName());
-            return null;
+            // Don't auto-pass over floating mana that would be lost — fall through
+            // to InputPassPriority so the mana-loss dialog can fire.
+            if (FModel.getPreferences().getPrefBoolean(FPref.UI_MANA_LOST_PROMPT) && stack.isEmpty()) {
+                Player priority = getGame().getPhaseHandler().getPriorityPlayer();
+                if (priority != null && priority.getManaPool().willManaBeLostAtEndOfPhase()
+                        && priority.getLobbyPlayer() == GamePlayerUtil.getGuiPlayer()) {
+                    // fall through to show InputPassPriority
+                } else {
+                    netLog.trace("Returning null (mayAutoPass) for player {}", player.getName());
+                    return null;
+                }
+            } else {
+                netLog.trace("Returning null (mayAutoPass) for player {}", player.getName());
+                return null;
+            }
         }
 
         if (stack.isEmpty()) {
             if (getGui().isUiSetToSkipPhase(getGame().getPhaseHandler().getPlayerTurn().getView(),
                     getGame().getPhaseHandler().getPhase())) {
-                netLog.trace("Returning null (skipPhase) for player {}", player.getName());
-                return null; // avoid prompt for input if stack is empty and
-                // player is set to skip the current phase
+                // Don't skip over a phase where floating mana would be lost.
+                boolean wouldLoseMana = FModel.getPreferences().getPrefBoolean(FPref.UI_MANA_LOST_PROMPT)
+                        && getGame().getPhaseHandler().getPriorityPlayer() != null
+                        && getGame().getPhaseHandler().getPriorityPlayer().getManaPool().willManaBeLostAtEndOfPhase()
+                        && getGame().getPhaseHandler().getPriorityPlayer().getLobbyPlayer() == GamePlayerUtil.getGuiPlayer();
+                if (!wouldLoseMana) {
+                    netLog.trace("Returning null (skipPhase) for player {}", player.getName());
+                    return null; // avoid prompt for input if stack is empty and
+                    // player is set to skip the current phase
+                }
             }
         } else {
             final SpellAbility ability = stack.peekAbility();