Release 0.7.8

What's new

• host-papp: SSO sessions now expose an identityAccountId field. Hosts use it to look up on-chain identity (display name, avatar) against the user's identity account, rather than the per-product signing account. The useSessionIdentity hook in host-papp-react-ui reads from this field automatically.

  const session = sessionManager.getSession(id);
  const identity = useSessionIdentity(session);
  // identity is now resolved against session.identityAccountId

Breaking changes

• host-papp: the SSO handshake response payload now carries identityAccountId. Older paired Polkadot Mobile clients won't handshake — both ends must be on a compatible version.
• storage-adapter: createLocalStorageAdapter now writes under a polkadot_<prefix>_ key namespace instead of PAPP_<prefix>_. Data written by earlier versions will not be found after upgrade — hosts that need to preserve user state must migrate the old keys.

Internal

• Refined e2e and unit tests across chain interaction, host-worker-sandbox, and host-papp.