refactor: remove deprecated app.message alias

The app.message alias was removed since sendMessage is the correct name.
sendResourceTeardown already exists in AppBridge.

Author: ochafik

src/app-bridge.test.ts

@@ -509,10 +509,6 @@ describe("App <-> AppBridge integration", () => {
       await app.connect(appTransport);
     });
 
-    it("app.message is a deprecated alias for app.sendMessage", async () => {
-      expect(app.message).toBe(app.sendMessage);
-    });
-
     it("app.sendOpenLink is an alias for app.openLink", async () => {
       expect(app.sendOpenLink).toBe(app.openLink);
     });
@@ -525,21 +521,6 @@ describe("App <-> AppBridge integration", () => {
       expect(bridge.sendResourceTeardown).toBe(bridge.teardownResource);
     });
 
-    it("app.message works as deprecated alias", async () => {
-      const receivedMessages: unknown[] = [];
-      bridge.onmessage = async (params) => {
-        receivedMessages.push(params);
-        return {};
-      };
-
-      await app.message({
-        role: "user",
-        content: [{ type: "text", text: "Via deprecated alias" }],
-      });
-
-      expect(receivedMessages).toHaveLength(1);
-    });
-
     it("app.sendOpenLink works as deprecated alias", async () => {
       const receivedLinks: string[] = [];
       bridge.onopenlink = async (params) => {

src/app.ts

@@ -781,9 +781,6 @@ export class App extends Protocol<AppRequest, AppNotification, AppResult> {
     );
   }
 
-  /** @deprecated Use {@link sendMessage} instead */
-  message: App["sendMessage"] = this.sendMessage;
-
   /**
    * Send log messages to the host for debugging and telemetry.
    *