[Game] Add Command Zone support with commander tax tracking

- Add CommandZone and CommandZoneLogic for commander
  - Add CommanderTaxCounter
  - Add counter active state protocol (show/hide tax counters)
  - Add "Enable Command Zone" option in game creation dialogs
  - Add context menu actions for command zone operations

Took 9 minutes

Took 11 minutes

cockatrice/src/game_graphics/board/abstract_counter.cpp

@@ -79,6 +79,19 @@ void AbstractCounter::delCounter()
     }
 }
 
+void AbstractCounter::setValue(int _value)
+{
+    value = _value;
+    update();
+}
+
+void AbstractCounter::setActive(bool _active)
+{
+    active = _active;
+    setVisible(_active);
+    update();
+}
+
 void AbstractCounter::retranslateUi()
 {
     if (aSet) {

cockatrice/src/game_graphics/board/abstract_counter.h

@@ -1,6 +1,7 @@
 /**
  * @file abstract_counter.h
  * @ingroup GameGraphicsPlayers
+ * @brief Abstract base for player counters displayed on the game board.
  */
 //! \todo Document this file.
 
@@ -61,6 +62,13 @@ public:
     ~AbstractCounter() override;
 
     void retranslateUi() override;
+
+    /**
+     * @brief Sets the counter value and triggers a visual update.
+     * Virtual to allow subclass display customization (e.g., CommanderTaxCounter tooltip updates).
+     * Overflow protection is handled server-side, not in client counter classes.
+     */
+    virtual void setValue(int _value);
     void setShortcutsActive() override;
     void setShortcutsInactive() override;
     void delCounter();
@@ -93,6 +101,25 @@ public:
     {
         return shownInCounterArea;
     }
+
+    /**
+     * @brief Returns whether this counter is active (visible and interactable).
+     * Inactive counters are hidden and their menu actions should be disabled.
+     */
+    [[nodiscard]] bool isActive() const
+    {
+        return active;
+    }
+
+    /**
+     * @brief Sets the active state of this counter.
+     * When inactive, the counter is hidden via setVisible(false).
+     * @param _active True to show and enable the counter, false to hide it
+     */
+    virtual void setActive(bool _active);
+
+private:
+    bool active = true;
 };
 
 class AbstractCounterDialog : public QInputDialog

cockatrice/src/game_graphics/board/translate_counter_name.cpp

@@ -8,4 +8,6 @@ const QMap<QString, QString> TranslateCounterName::translated = {
     {"r", QT_TRANSLATE_NOOP("TranslateCounterName", "Red")},
     {"g", QT_TRANSLATE_NOOP("TranslateCounterName", "Green")},
     {"x", QT_TRANSLATE_NOOP("TranslateCounterName", "Colorless")},
-    {"storm", QT_TRANSLATE_NOOP("TranslateCounterName", "Other")}};
+    {"storm", QT_TRANSLATE_NOOP("TranslateCounterName", "Other")},
+    {"commander_tax_counter", QT_TRANSLATE_NOOP("TranslateCounterName", "Commander Tax")},
+    {"partner_tax_counter", QT_TRANSLATE_NOOP("TranslateCounterName", "Partner Tax")}};