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54fd94547c
- Added pre-calculation of estimated chunk count for HNSW capacity in `generate_dense_embeddings_centralized` to optimize indexing performance. - Implemented binary vector generation with memory-mapped storage for efficient cascade search, including metadata saving. - Introduced SPLADE sparse index generation with improved handling and metadata storage. - Updated `ChainSearchEngine` to prefer centralized binary searcher for improved performance and added fallback to legacy binary index. - Deprecated `BinaryANNIndex` in favor of `BinarySearcher` for better memory management and performance. - Enhanced `SpladeEncoder` with warmup functionality to reduce latency spikes during first-time inference. - Improved `SpladeIndex` with cache size adjustments for better query performance. - Added methods for managing binary vectors in `VectorMetadataStore`, including batch insertion and retrieval. - Created a new `BinarySearcher` class for efficient binary vector search using Hamming distance, supporting both memory-mapped and database loading modes.