[Fix] Prefer external session delivery context (#87476)

* fix(sessions): prefer external delivery context

Signed-off-by: samzong <samzong.lu@gmail.com>

* fix: route Feishu session announces from delivery context

* fix: accept normalized cron schedule inputs

---------

Signed-off-by: samzong <samzong.lu@gmail.com>
Co-authored-by: Peter Steinberger <steipete@gmail.com>

extensions/feishu/src/channel.test.ts

@@ -96,6 +96,12 @@ afterAll(() => {
   vi.resetModules();
 });
 
+describe("feishuPlugin metadata", () => {
+  it("opts announce delivery into persisted session lookup", () => {
+    expect(feishuPlugin.meta.preferSessionLookupForAnnounceTarget).toBe(true);
+  });
+});
+
 describe("feishuPlugin.status.probeAccount", () => {
   it("uses current account credentials for multi-account config", async () => {
     const cfg = {

extensions/feishu/src/channel.ts

@@ -139,6 +139,7 @@ const meta: ChannelMeta = {
   blurb: "飞书/Lark enterprise messaging.",
   aliases: ["lark"],
   order: 70,
+  preferSessionLookupForAnnounceTarget: true,
 };
 
 const loadFeishuChannelRuntime = createLazyRuntimeNamedExport(