v0.2.0 of sankofa_flutter

Sankofa Flutter SDK — Deploy (OTA patches via KBC interpreter), Analytics, Replay, Catch, Switch, Config, and Pulse, with offline queueing and Ed25519-signed envelopes. Changelog excerpt: - Sankofa Deploy module— Path C iOS OTA via the Sankofa-fork Flutter engine's dart::Interpreter::Run. No App Store resubmission, no JIT entitlement. Patches ship as SANKOFA_KBC_ENVELOPE v1files signed with project-bound Ed25519 keypairs. - Sankofa.deploy.fetchAndApplyKbcPatch— single-call fetch + verify + apply path for Tier-A and Tier-B patches. - Sankofa.deploy.tryApplyStagedKbcPatch— boot-time re-apply for OTA persistence across cold restart. - Rollback safety— boot-co[...]