feat: 让 bar 支持点击触发动作

src/core/policy.c

@@ -371,7 +371,7 @@ static void toggle_bar_visibility(
   command_buffer_push(command_buffer, &set_bar_visibility_command);
 }
 
-static void policy_resolve_action(
+void policy_resolve_action(
   const policy_context_t *ctx,
   const zdwm_action_t *action,
   command_buffer_t *out

src/core/policy.h

@@ -33,6 +33,12 @@ typedef struct policy_context_t {
   const policy_bar_t bar;
 } policy_context_t;
 
+void policy_resolve_action(
+  const policy_context_t *ctx,
+  const zdwm_action_t *action,
+  command_buffer_t *out
+);
+
 /**
  * @brief 事件路由：将运行时事件翻译为语义命令
  *