fix(spoof): isolate BulletinPoller.start failure

BulletinPoller.start ran inside App.main's outer try{...} catch
that rethrows, so any HandlerThread or Looper init failure killed
the daemon including keystore interception. Wrap the start call in
its own try so a poller failure logs and falls through, leaving
the rest of the pipeline alive.

app/src/main/java/org/matrix/TEESimulator/App.kt

@@ -60,7 +60,11 @@ object App {
 
             NativeCertGen.initialize("/data/adb/modules/tricky_store/libcertgen.so")
 
+            try {
                 BulletinPoller.start()
+            } catch (e: Throwable) {
+                SystemLogger.error("Failed to start BulletinPoller", e)
+            }
 
             // This starts the message queue processing. It blocks here indefinitely
             // processing messages until Looper.myLooper().quit() is called.