feat(EX): ix_full_bridge — all 14 ixformer::infer functions bridged
Upstream source: xllm/core/kernels/ilu/ixformer.h (Apache 2.0)
Wrapper patterns: xllm/core/kernels/ilu/{attention,norm,rope,activation,fused_moe,group_gemm}.cpp
Complete bridge (ix_full_bridge.cpp, 331 lines):
MoE: topk_softmax, gen_idx, expand, group_gemm, silu_mul, combine, fused_forward
Attention: paged_attention (decode), flash_attn_prefill (prefill)
Norm: rms_norm, fused_add_rms_norm
RoPE: rotary_embedding
Cache: reshape_and_cache
Linear: ixformer_linear
ix_bridge.py: tries ix_full_bridge first, falls back to ix_moe_bridge
patch_ops.sh: deploys both .cpp files to all JIT search paths
Copied ixformer.h + utils.h headers for reference