[bmehta001]

Summary

Fixes #1551.
Fixes #1550.

• Scope every Android HTTP send's JNI local frame through execution and all error returns; do not promote the FutureShim into a caller frame on a persistently attached thread.
• Release the task's global reference before completion/cancellation callbacks, including create/execute/cancel failures. Retained native requests no longer retain completed futures. Remove failed requests before invoking callbacks and keep a stable request-ID copy when a callback deletes its request.
• Delete temporary class references used for cancellation and client setup.
• Preserve the AAR's Room default without forcing it over an explicit MATSDK_ANDROID_USE_ROOM=OFF. Restore the deprecated USE_ROOM alias; an explicit canonical option takes precedence.
• Add an ART/CheckJNI emulator regression job and validate actual AAR storage sources/definitions in the existing all-ABI, Room/SQLite no-exceptions build matrix.

Validation

Check	Result
Windows-hosted Android API 30 x86_64 emulator, -Xcheck:jni	All 13 lifecycle cases passed: success, network failure, individual/bulk/early/preparing cancellation, create/execute/cancel exceptions, null task, synchronous callback deletion, asynchronous completion, and completion/cancellation races.
Persistent-thread stress	60,000 successful sends on one attached native thread; zero retained FutureShim objects after GC, while both the thread and native request objects remain alive.
Regression against original client	The callback-deletes-request case fails with 1,024 retained FutureShim objects, isolating the local-reference leak even when native destructors release globals.
AAR storage configuration	All 7 combinations passed: default, canonical ON/OFF, legacy ON/OFF, and both conflicting combinations. The original wrapper reproduces OFF becoming ON in CMakeCache.
Actual AAR JNI libraries	Room and SQLite x86_64 builds passed; native symbols confirm the selected storage implementation. ARM64 SQLite JNI build without C++ exceptions also passed.
Windows and WSL	Storage option compatibility/precedence tests passed on both.
Lint	Changed-line C++ formatting, regression C++ formatting, Java -Xlint:all -Werror, Ruff, and git diff --check passed.

The ART tests link the production C++ HTTP client to a deterministic Java FutureTask peer, without network or AndroidX dependencies. They verify reference lifetime and callback behavior, not a Teams end-to-end session or physical-device reproduction. No cases are skipped or excluded.