chore: 提交所有工作进度 — SaaS 后端增强、Admin UI、桌面端集成

包含大量 SaaS 平台改进、Admin 管理后台更新、桌面端集成完善、
文档同步、测试文件重构等内容。为 QA 测试准备干净工作树。

crates/zclaw-kernel/src/lib.rs

@@ -8,6 +8,7 @@ mod capabilities;
 mod events;
 pub mod trigger_manager;
 pub mod config;
+pub mod scheduler;
 #[cfg(feature = "multi-agent")]
 pub mod director;
 pub mod generation;
@@ -21,8 +22,16 @@ pub use config::*;
 pub use trigger_manager::{TriggerManager, TriggerEntry, TriggerUpdateRequest, TriggerManagerConfig};
 #[cfg(feature = "multi-agent")]
 pub use director::*;
+#[cfg(feature = "multi-agent")]
+pub use zclaw_protocols::{
+    A2aRouter, A2aAgentProfile, A2aCapability, A2aEnvelope, A2aMessageType, A2aRecipient,
+ A2aReceiver,
+ BasicA2aClient,
+ A2aClient,
+};
 pub use generation::*;
 pub use export::{ExportFormat, ExportOptions, ExportResult, Exporter, export_classroom};
 
 // Re-export hands types for convenience
 pub use zclaw_hands::{HandRegistry, HandContext, HandResult, HandConfig, Hand, HandStatus};
+pub use scheduler::SchedulerService;