AirSend modified Zingolib wallet binding

Exact upstream source: https://github.com/zingolabs/zingolib/tree/625f617b63070855d1a4b2a2f61d071cb27c6f82
AirSend modifications: explicit session direct-TLS opt-in and separate offline signing/raw relay. Apply direct-TLS then offline-relay patches; see REPRODUCING.md. Parsing raw bytes does not independently verify shielded proofs.
The dependency-notices.json file lists exact package versions, source URLs, checksum and notices.
MPL-2.0 components are unmodified and their complete covered source is available at each listed sourceUrl. Downloading those source archives requires no account or payment.
Includes a conservative superset of native wallet dependencies (build-time packages included).
JNA 5.18.1 is used under Apache-2.0: https://github.com/java-native-access/jna/tree/5.18.1
Kotlin 2.2.10 uses Apache-2.0: https://github.com/JetBrains/kotlin/tree/v2.2.10
