[lapack][rocSOLVER] Implement native LAPACK gaps

[zjin-lcf]

Summary

• implement gerqf and getri with native rocSOLVER entry points for buffer and USM APIs
• implement strided and grouped batched geqrf, getrf, getrs, getri, potrf, potrs, and orgqr/ungqr routines with scratchpad queries
• preserve SYCL dependencies, convert oneMath 64-bit pivots safely, report per-matrix batch errors, and clean up temporary USM allocations on failures
• leave ormrq/unmrq, trtrs, and hetrf unimplemented because rocSOLVER has no native equivalents

Test plan

• Build the rocSOLVER LAPACK backend with DPC++ and ROCm 7.2.4
• Run compile-time dispatch LAPACK tests on AMD GPU
• Run runtime dispatch LAPACK tests on AMD GPU
• Verify grouped potrs_batch accuracy and dependency tests with multiple right-hand sides
• Run clang-format 19.1.0 and git diff --check

Portability

The implementation uses architecture-neutral rocSOLVER APIs and basic SYCL kernels.