Merge origin/main into DLO docs branch

docs/design/index.md

@@ -1,6 +1,8 @@
 # Design Documents
 
-This section contains design documents and architecture specifications for vLLM-Omni.
+This section contains design documents and architecture specifications for
+vLLM-Omni. The sidebar groups documents by the system concern they describe,
+while the source paths remain stable so existing links continue to work.
 
 ## Architecture Documents
 
@@ -8,18 +10,64 @@ This section contains design documents and architecture specifications for vLLM-
 
 ## Feature Design Documents
 
+### Runtime and stage execution
+
 - [Disaggregated Inference](feature/disaggregated_inference.md)
 - [Ray-based Execution](feature/ray_based_execution.md)
+- [Async Chunk](feature/async_chunk.md)
+- [Async Diffusion Output](feature/async_diffusion_output.md)
 - [Async Omni Output Materialization](feature/omni_async_output_materialization.md)
+- [Automatic Prefix Caching in Omni Models](feature/prefix_caching.md)
+
+### Communication
+
+#### OmniConnector implementations
+
+- [Mooncake Store Connector](feature/omni_connectors/mooncake_store_connector.md)
+- [Mooncake Transfer Engine Connector](feature/omni_connectors/mooncake_transfer_engine_connector.md)
+- [Mori Transfer Engine Connector](feature/omni_connectors/mori_transfer_engine_connector.md)
+- [Shared Memory Connector](feature/omni_connectors/shared_memory_connector.md)
+- [Yuanrong Store Connector](feature/omni_connectors/yuanrong_connector.md)
+- [Yuanrong Transfer Engine Connector](feature/omni_connectors/yuanrong_transfer_engine_connector.md)
+
+### Diffusion acceleration
+
+#### Parallelism
+
+- [CFG-Parallel](feature/cfg_parallel.md)
+- [Expert Parallel](feature/expert_parallel.md)
+- [Hybrid Sharded Data Parallel (HSDP)](feature/hsdp.md)
+- [Pipeline Parallel](feature/pipeline_parallel.md)
+- [Sequence Parallel](feature/sequence_parallel.md)
+- [Tensor Parallel](feature/tensor_parallel.md)
+- [VAE Patch Parallelism](feature/vae_parallel.md)
+
+#### Attention Backends
+
+- [Skip-Softmax](feature/skip_softmax.md)
+
+#### Quantization
+
+- [Quantization Overview](../user_guide/quantization/overview.md)
+
+- [Cache-DiT](feature/cache_dit.md)
+- [TeaCache](feature/teacache.md)
 - [Diffusion Continuous Batching](feature/diffusion_continuous_batching.md)
 - [Distributed Layerwise Offload](feature/distributed_layerwise_offload.md)
 
-## Infrastructure Design Documents
+## Infrastructure and Performance
 
 - [Prometheus Metrics](metrics.md)
+- [Speech Generation Performance Optimizations](qwen3_omni_tts_performance_optimization.md)
 
 ## Module Design Documents
 
+### Runtime Modules
+
 - [AR Module](module/ar_module.md)
 - [DIT Module](module/dit_module.md)
+
+### Orchestration
+
 - [Entrypoint Module](module/entrypoint_module.md)
+- [AsyncOmni Architecture (Qwen3-Omni Example)](module/async_omni_architecture.md)