UAI Relay 3.5.7 - Delta local transport

Delta 1.1.741.1062 was reported to reach the companion through HttpGet while native request failed with HttpError: ConnectFail. This release adds an authenticated HttpPost transport for that situation.

Install UAI-Relay-3.5.7.apk and reload the current Project UAI client (or the uai.lua asset here), then press Scan now. Existing production installations can update in place and retain pairing. The companion updater can discover this release.

Credentials remain in POST bodies. Submission, polling and cancellation use the existing engine, job identity and deadlines. Companion 3.5.6 and earlier do not support this transport.

Validation: focused Lua discovery, HTTP, mobile relay and deadline checks; native static and Luau compilation; signed APK verification. Android HttpPost and end-to-end inference still require testing on the target Delta build.